

# Amazon RDS for PostgreSQL updates
<a name="postgresql-versions"></a>

Amazon RDS supports DB instances running several versions of PostgreSQL. You can specify any currently available PostgreSQL version when creating a new DB instance. You can specify the major version (such as PostgreSQL 10) and any available minor version for the specified major version. If no version is specified, Amazon RDS defaults to an available version, typically the most recent version. If a major version is specified but a minor version isn't, Amazon RDS defaults to a recent release of the major version that you specified. 

To see a list of available versions, and also defaults for newly created DB instances, use the [https://docs.aws.amazon.com/cli/latest/reference/rds/describe-db-engine-versions.html](https://docs.aws.amazon.com/cli/latest/reference/rds/describe-db-engine-versions.html) AWS CLI command. For example, to display the default PostgreSQL engine version, use the following command.

```
aws rds describe-db-engine-versions --default-only --engine postgres
```

To learn more about versioning policy for RDS for PostgreSQL, see [Amazon RDS FAQs](https://aws.amazon.com/rds/faqs/). For more information about PostgreSQL versions, see [Versioning Policy](https://www.postgresql.org/support/versioning/) in the PostgreSQL documentation.

**Topics**
+ [PostgreSQL 18 versions](#postgresql-version18)
+ [PostgreSQL 17 versions](#postgresql-version17)
+ [PostgreSQL 16 versions](#postgresql-version16)
+ [PostgreSQL 15 versions (Some of these versions have reached the end of standard support or deprecated.)](#postgresql-version15)
+ [PostgreSQL 14 versions](#postgresql-versions-version14)
+ [PostgreSQL 13 versions](#postgresql-versions-version13)
+ [PostgreSQL 12 versions (Some of these versions have reached the end of standard support or deprecated.)](#postgresql-versions-version12)
+ [PostgreSQL 11 versions (Some of these versions have reached the end of standard support or deprecated.)](#postgresql-versions-version11)
+ [PostgreSQL 10 versions (Deprecated)](#postgresql-versions-version10)
+ [PostgreSQL 9.6 versions (Deprecated)](#postgresql-versions-version96)
+ [Deprecation of PostgreSQL 10](#postgresql-versions-version10-deprecation-notice)
+ [Deprecation of PostgreSQL 9.6](#postgresql-versions-version96-deprecation-notice)

## PostgreSQL 18 versions
<a name="postgresql-version18"></a>

**Topics**
+ [PostgreSQL version 18.3 on Amazon RDS](#postgresql-versions-version183)
+ [PostgreSQL version 18.2 on Amazon RDS](#postgresql-versions-version182)
+ [PostgreSQL version 18.1 on Amazon RDS](#postgresql-versions-version181)
+ [PostgreSQL version 18.0 in the Amazon RDS Preview environment](#postgresql-versions-version180Preview)
+ [PostgreSQL version 18 RC1 in the Amazon RDS Preview environment](#postgresql-versions-version18RC1)
+ [PostgreSQL version 18 Beta 3 in the Amazon RDS Preview environment](#postgresql-versions-version18Beta3)
+ [PostgreSQL version 18 Beta 2 in the Amazon RDS Preview environment](#postgresql-versions-version18Beta2)
+ [PostgreSQL version 18 Beta 1 in the Amazon RDS Preview environment](#postgresql-versions-version18Beta1)

### PostgreSQL version 18.3 on Amazon RDS
<a name="postgresql-versions-version183"></a>

PostgreSQL version 18.3 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 18.3 release](https://www.postgresql.org/docs/release/18.3/).

### PostgreSQL version 18.2 on Amazon RDS
<a name="postgresql-versions-version182"></a>

PostgreSQL version 18.2 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 18.2 release](https://www.postgresql.org/docs/release/18.2/).

**General enhancements**
+ Improved stability and reliability for database operations.
+ Enhanced data collection capabilities.
+ *Advanced query performance monitoring*: Introduced the pg\$1stat\$1monitor extension to provide comprehensive query performance insights and help identify performance bottlenecks.

This version also includes the following extension changes:

The following extension was added:
+ pg\$1stat\$1monitor
+ The `pgactive` extension was updated to version 2.1.7.
+ The `pglogical` extension was updated to version 2.4.6.
+ The `pg_hint_plan` extension was updated to version 1.6.2.
+ The `orafce` extension was updated to version 4.16.3.
+ The `postgis` extension was updated to version 3.6.1.
+ The `pg_bigm` extension was updated to version 1.2-20250903.
+ The `pg_cron` extension was updated to version 1.6.7.
+ The `hypopg` extension was updated to version 1.4.2.
+ The `tds_fdw` extension was updated to version 2.0.5.
+ The `pg_repack` extension was updated to version 1.5.3.
+ The `pgvector` extension was updated to version 0.8.1.
+ The `mysql_fdw` extension was updated to version 2.9.3.
+ The `oracle_fdw` extension was updated to version 2.8.0.
+ The `roaringbitmap` extension was updated to version 1.1.0.

### PostgreSQL version 18.1 on Amazon RDS
<a name="postgresql-versions-version181"></a>

PostgreSQL 18 contains many new features and enhancements that can be seen in the following release documentation, [PostgreSQL 18](https://www.postgresql.org/docs/18/release-18.html).

The following parameters were updated:
+ track\$1cost\$1delay\$1timing default is set to on
+ max\$1active\$1replication\$1origins default is set to 20.
+ pclient\$1connection\$1check\$1interval default is set to 60000.
+ log\$1connections was updated to reflect the new PostgreSQL 18 behavior. The old default value of 0 is equivalent to the new default empty value, and the old value of 1 is equivalent to specifying all three values of receipt, authentication, and authorization.
+ autovacuum\$1worker\$1slots,io\$1workers,io\$1max\$1concurrency

The following extensions were added:
+ pgcollection
+ roaringbitmap

This version also includes the following extension changes:
+ The `pgaudit` updated to version 18.0
+ The `pg_cron` updated to version 1.6.7
+ The `pgvector` updated to version 0.8.1
+ The `pg_tle` updated to version 1.5.2
+ The `mysql_fdw` updated to version 2.9.3.
+ The `tds_fdw` updated to version 2.0.5.

The following extension supported in RDS for PostgreSQL version 17 isn't supported for RDS for PostgreSQL version 18:
+ `postgis_topology`
+ `plrust`

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 18](postgresql-extensions.md#postgresql-extensions-18x).

### PostgreSQL version 18.0 in the Amazon RDS Preview environment
<a name="postgresql-versions-version180Preview"></a>

**Note**  
The preview documentation for Amazon RDS PostgreSQL version 18 is subject to change.

PostgreSQL 18 contains many new features and enhancements that can be seen in the following release documentation, [PostgreSQL 18](https://www.postgresql.org/docs/18/release-18.html).

The following extensions were added:
+ pglogical
+ postgis
+ pgrouting
+ h3-pg

This version also includes the following extension changes:
+ The `pg_bigm` extension was updated to version v1.2-20250903

The following extension supported in RDS for PostgreSQL version 17 isn't supported for RDS for PostgreSQL version 18.0 in preview:
+ `pgAudit`
+ `plrust`

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 18](postgresql-extensions.md#postgresql-extensions-18x).

### PostgreSQL version 18 RC1 in the Amazon RDS Preview environment
<a name="postgresql-versions-version18RC1"></a>

PostgreSQL 18 RC1 contains many new features and enhancements that can be seen in the release documentation: [PostgreSQL 18 RC1 Released\$1](https://www.postgresql.org/about/news/postgresql-18-rc-1-released-3130/).

The following extensions were added:
+ `pg_hint_plan`
+ `tds_fdw`
+ `pg_transport`

This version also includes the following extension changes:
+ The `hypopg` extension was updated to version 1.4.2
+ The `pg_repack` extension was updated to version 1.5.2
+ The `pgactive` extension was updated to version 2.1.6

The following extensions that are supported in Amazon RDS PostgreSQL version 17 aren't supported for Amazon RDS PostgreSQL version 18 Beta 3 in preview:
+ `address_standardizer`
+ `address_standardizer_data_us`
+ `h3-pg`
+ `pgAudit`
+ `pglogical`
+ `pgrouting`
+ `plrust`
+ `PostGIS`
+ `postgis_raster`
+ `postgis_tiger_geocoder`
+ `postgis_topology`

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 18](postgresql-extensions.md#postgresql-extensions-18x).

### PostgreSQL version 18 Beta 3 in the Amazon RDS Preview environment
<a name="postgresql-versions-version18Beta3"></a>

PostgreSQL 18 Beta 3 contains many new features and enhancements that can be seen in the release documentation: [PostgreSQL 18 Beta 3 Released\$1](https://www.postgresql.org/about/news/postgresql-176-1610-1514-1419-1322-and-18-beta-3-released-3118/).

The following modifiable parameters were added:
+ `autovacuum_vacuum_max_threshold`
+ `track_cost_delay_timing`
+ `idle_replication_slot_timeout`
+ `md5_password_warnings`
+ `log_lock_failure`
+ `restrict_nonsystem_relation_kind`
+ `vacuum_truncate`
+ `vacuum_max_eager_freeze_failure_rate`
+ `enable_distinct_reordering`
+ `enable_self_join_elimination`
+ `max_active_replication_origins`
+ `io_max_combine_limit`

The following extensions were added:
+ `plv8`
+ `pgactive`

The following extensions that are supported in Amazon RDS PostgreSQL version 17 aren't supported for Amazon RDS PostgreSQL version 18 Beta 3 in preview:
+ `address_standardizer`
+ `address_standardizer_data_us`
+ `h3-pg`
+ `pg_hint_plan`
+ `pg_transport`
+ `pgAudit`
+ `pglogical`
+ `pgrouting`
+ `plrust`
+ `PostGIS`
+ `postgis_raster`
+ `postgis_tiger_geocoder`
+ `postgis_topology`
+ `tds_fdw`

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 18](postgresql-extensions.md#postgresql-extensions-18x).

### PostgreSQL version 18 Beta 2 in the Amazon RDS Preview environment
<a name="postgresql-versions-version18Beta2"></a>

PostgreSQL 18 Beta 2 contains many new features and enhancements that can be seen in the release documentation: [PostgreSQL 18 Beta 2 Released\$1](https://www.postgresql.org/about/news/postgresql-18-beta-2-released-3103/).

The following loadable module was added in this release:
+ `pg_overexplain`

The following extensions were added in this release:
+ `pg_tap`
+ `oracle_fdw`
+ `pg_bigm`
+ `pg_partman`
+ `pg_proctab`
+ `pg_repack`
+ `pg_tle`
+ `rdkit`

The following extensions that are supported in Amazon RDS PostgreSQL version 17 aren't supported for Amazon RDS PostgreSQL version 18 Beta 2 in preview:
+ `address_standardizer`
+ `address_standardizer_data_us`
+ `h3-pg`
+ `pg_hint_plan`
+ `pg_transport`
+ `pgactive`
+ `pgAudit`
+ `pglogical`
+ `pgrouting`
+ `plrust`
+ `plv8`
+ `PostGIS`
+ `postgis_raster`
+ `postgis_tiger_geocoder`
+ `postgis_topology`
+ `tds_fdw`

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 18](postgresql-extensions.md#postgresql-extensions-18x).

### PostgreSQL version 18 Beta 1 in the Amazon RDS Preview environment
<a name="postgresql-versions-version18Beta1"></a>

PostgreSQL 18 Beta 1 contains many new features and enhancements that can be seen in the release documentation: [PostgreSQL 18 Beta 1 Released\$1](https://www.postgresql.org/about/news/postgresql-18-beta-1-released-3070/).

This release includes the following version updates:
+ `LLVM` version updated to 20.1.1
+ `LZ4` version updated to 1.10.0
+ `Zstd` version updated to 1.5.7
+ `Zlib` version updated to 1.3.1
+ `AWS-LC` version updated to AWS-LC FIPS 3.0
+ `Kerberos` version updated to 1.21.3
+ `Perl` version updated to 5.40.2
+ `ossp-uuid` now uses the e2fs UUID implementation

The following extensions that are supported in Amazon RDS PostgreSQL version 17 aren't supported for Amazon RDS PostgreSQL version 18 Beta 1 in preview:
+ `address_standardizer`
+ `address_standardizer_data_us`
+ `h3-pg`
+ `oracle_fdw`
+ `pg_bigm`
+ `pg_hint_plan`
+ `pg_partman`
+ `pg_proctab`
+ `pg_repack`
+ `pg_tle`
+ `pg_transport`
+ `pgactive`
+ `pgAudit`
+ `pglogical`
+ `pgrouting`
+ `pgTAP`
+ `plrust`
+ `pltcl`
+ `plv8`
+ `PostGIS`
+ `postgis_raster`
+ `postgis_tiger_geocoder`
+ `postgis_topology`
+ `rdkit`
+ `tds_fdw`

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 18](postgresql-extensions.md#postgresql-extensions-18x).

## PostgreSQL 17 versions
<a name="postgresql-version17"></a>

**Topics**
+ [PostgreSQL version 17.9 on Amazon RDS](#postgresql-versions-version179)
+ [PostgreSQL version 17.8 on Amazon RDS](#postgresql-versions-version178)
+ [PostgreSQL version 17.7 on Amazon RDS](#postgresql-versions-version177)
+ [PostgreSQL version 17.6-R2 on Amazon RDS](#postgresql-versions-version176R2)
+ [PostgreSQL version 17.6 on Amazon RDS](#postgresql-versions-version176)
+ [PostgreSQL version 17.5-R2 on Amazon RDS](#postgresql-versions-version175R2)
+ [PostgreSQL version 17.5 on Amazon RDS](#postgresql-versions-version175R1)
+ [PostgreSQL version 17.4-R2 on Amazon RDS](#postgresql-versions-version174R2)
+ [PostgreSQL version 17.4 on Amazon RDS](#postgresql-versions-version174)
+ [PostgreSQL version 17.3 on Amazon RDS](#postgresql-versions-version173R1)
+ [PostgreSQL version 17.2-R3 on Amazon RDS](#postgresql-versions-version172R3)
+ [PostgreSQL version 17.2-R2 on Amazon RDS](#postgresql-versions-version172R2)
+ [PostgreSQL version 17.2 on Amazon RDS](#postgresql-versions-version172)
+ [PostgreSQL version 17.1 on Amazon RDS](#postgresql-versions-version171)
+ [PostgreSQL version 17.0 in the Amazon RDS Preview environment](#postgresql-versions-version170Preview)
+ [PostgreSQL version 17 RC1 in the Amazon RDS Preview environment](#postgresql-versions-version17RC1)
+ [PostgreSQL version 17 Beta 3 in the Amazon RDS Preview environment](#postgresql-versions-version17Beta3)
+ [PostgreSQL version 17 Beta 2 in the Amazon RDS Preview environment](#postgresql-versions-version17Beta2)
+ [PostgreSQL version 17 Beta 1 in the Amazon RDS Preview environment](#postgresql-versions-version17Beta1)

### PostgreSQL version 17.9 on Amazon RDS
<a name="postgresql-versions-version179"></a>

PostgreSQL version 17.9 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 17.9 release](https://www.postgresql.org/docs/release/17.9/).

### PostgreSQL version 17.8 on Amazon RDS
<a name="postgresql-versions-version178"></a>

PostgreSQL version 17.8 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 17.8 release](https://www.postgresql.org/docs/release/17.8/).

**General enhancements**
+ Improved stability and reliability for database operations.
+ Enhanced data collection capabilities.

This version also includes the following extension changes:
+ The `pgactive` extension was updated to version 2.1.7.
+ The `pglogical` extension was updated to version 2.4.6.
+ The `pg_hint_plan` extension was updated to version 1.7.1.
+ The `orafce` extension was updated to version 4.16.3.
+ The `pg_bigm` extension was updated to version 1.2-20250903.
+ The `pg_cron` extension was updated to version 1.6.7.
+ The `hypopg` extension was updated to version 1.4.2.
+ The `tds_fdw` extension was updated to version 2.0.5.
+ The `pg_repack` extension was updated to version 1.5.3.
+ The `pgvector` extension was updated to version 0.8.1.
+ The `mysql_fdw` extension was updated to version 2.9.3.
+ The `oracle_fdw` extension was updated to version 2.8.0.

### PostgreSQL version 17.7 on Amazon RDS
<a name="postgresql-versions-version177"></a>

PostgreSQL version 17.7 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 17.7 release](https://www.postgresql.org/docs/release/17.7/).

**General enhancements**
+ The pgcollection extension is now available for RDS PostgreSQL version 15.15 and above(16.11 and 17.7), providing a memory-optimized data type designed for high-performance use inside PL/pgSQL functions. A collection stores key-value pairs where each key is a unique text string (maximum 32,767 characters) and values can be any PostgreSQL type including composite types, with all elements in a collection required to be of the same type. Collections maintain entries in creation order and can hold an unlimited number of elements constrained only by available database memory, with a maximum persisted size of 1GB when stored as a table column..

This version also includes the following extension changes:
+ The `pg_tle` extension was updated to version 1.5.2.
+ The `h3-pg` extension was updated to version 4.2.3.

### PostgreSQL version 17.6-R2 on Amazon RDS
<a name="postgresql-versions-version176R2"></a>

PostgreSQL version 17.6-R2 is now available on Amazon RDS. 

This version also includes the following extension changes:
+ The `pgactive` extension was updated to version 2.1.6.

### PostgreSQL version 17.6 on Amazon RDS
<a name="postgresql-versions-version176"></a>

PostgreSQL version 17.6 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 17.6 release](https://www.postgresql.org/docs/release/17.6/).

**General enhancements**
+ Grant rds\$1superuser access to pg\$1wal\$1pause / pg\$1wal\$1replay functions to perform logical upgrades and verification/validation.
+ Updated V8 engine to version 11.5.150.2 for the `plv8` extension 3.1.10.

This version also includes the following extension changes:
+ The `pg_repack` extension was updated to version 1.5.2.
+ The `oracle_fdw` extension was updated to version 2.8.0.
+ The `pgactive` extension was updated to version 2.1.5.

### PostgreSQL version 17.5-R2 on Amazon RDS
<a name="postgresql-versions-version175R2"></a>

PostgreSQL version 17.5-R2 is now available on Amazon RDS. 

**General enhancements**
+ Updated V8 engine to version 11.5.150.2 for the `plv8` extension 3.1.10.

This version also includes the following extension changes:
+ The `pgactive` extension was updated to version 2.1.6.

### PostgreSQL version 17.5 on Amazon RDS
<a name="postgresql-versions-version175R1"></a>

PostgreSQL version 17.5 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 17.5 release](https://www.postgresql.org/docs/release/17.5/).

**General enhancements**
+ Fixed for the `address_standardizer_data_us` extension issue regarding ALTER EXTENSION UPDATE failure.
+ Changed the Oracle client library version for the `oracle_fdw` extension on x86 to 19.26.0.0.0.
+ Fixed the `pgactive` extension unable to upgrade issue due to incorrect extension upgrade scripts which causes replication to break after engine upgrade.

This version also includes the following extension changes:
+ The `pg_repack` extension was updated to version 1.5.1.
+ The `pglogical` extension was updated to version 2.4.5.
+ The `PgAudit` extension was updated to version 17.1.
+ The `RDKit` extension was updated to version 2024\$109\$16.

### PostgreSQL version 17.4-R2 on Amazon RDS
<a name="postgresql-versions-version174R2"></a>

PostgreSQL version 17.4-R2 is now available on Amazon RDS. 

**Fixes and improvements**
+ Updated V8 engine to version 11.5.150.2 for the `plv8` extension 3.1.10.

This version also includes the following extension changes:
+ The `pgactive` extension was updated to version 2.1.6.

### PostgreSQL version 17.4 on Amazon RDS
<a name="postgresql-versions-version174"></a>

PostgreSQL version 17.4 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 17.4 release](https://www.postgresql.org/docs/release/17.4/).

### PostgreSQL version 17.3 on Amazon RDS
<a name="postgresql-versions-version173R1"></a>

PostgreSQL version 17.3 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 17.3 release](https://www.postgresql.org/docs/release/17.3/).

**New features and enhancements**.
+ In Blue/Green deployments, creating or modifying temporary objects is no longer classified as restricted DDL.
+ The `postgres_get_av_diag` function has been updated to support radix tree optimization on PostgreSQL 17. Recommendations are now tailored to account for this new optimization feature.
+ Resolved an issue where DVB returned duplicate rows during slow vacuum analysis.
+ Resolved CVE RUSTSEC-2024-0421 by upgrading URL Rust crate to 2.5.4. For more information, see [RUSTSEC-2024-0421](https://rustsec.org/advisories/RUSTSEC-2024-0421.html).
+ Applied Promise.any error allocation fix for V8 9.7.37, PLV8 3.1.10.

**This version also includes the following extension changes:**.
+ The `rds_tools` extension was updated to 1.9.
+ The `orafce` extension was updated to 4.14.0.
+ The `pg_cron` extension was updated to 1.6.5.
+ The `rdkit` extension was updated to 2024\$109\$13.
+ The `pg_active` extension was updated to 2.1.4.
+ The `pg_partman` extension was updated to 5.2.4.
+ The `prefix` extension was updated to 1.2.10.
+ The `PostGIS` extension was updated to 3.5.1.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 17](postgresql-extensions.md#postgresql-extensions-17x).

### PostgreSQL version 17.2-R3 on Amazon RDS
<a name="postgresql-versions-version172R3"></a>

PostgreSQL version 17.2-R3 is now available on Amazon RDS. 

**General enhancements**
+ Updated V8 engine to version 11.5.150.2 for the `plv8` extension 3.1.10.

### PostgreSQL version 17.2-R2 on Amazon RDS
<a name="postgresql-versions-version172R2"></a>

PostgreSQL version 17.2-R2 is now available on Amazon RDS. This release contains fix for PLV8 [CVE-2022-4174](https://nvd.nist.gov/vuln/detail/cve-2022-4174) and Rust [CVE RUSTSEC-2024-042](https://rustsec.org/advisories/RUSTSEC-2024-0421.html) for PostgreSQL announced in [PostgreSQL 17.2](https://www.postgresql.org/docs/release/17.2/).

### PostgreSQL version 17.2 on Amazon RDS
<a name="postgresql-versions-version172"></a>

PostgreSQL version 17.2 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 17.2 release](https://www.postgresql.org/docs/release/17.2/).

### PostgreSQL version 17.1 on Amazon RDS
<a name="postgresql-versions-version171"></a>

PostgreSQL version 17.1 is now available on Amazon RDS. This release contains many new features and enhancements that can be seen in the following release documentation, [PostgreSQL 17.1](https://www.postgresql.org/docs/release/17.1/).

**New features**
+ Starting in RDS for PostgreSQL versions 17.1, 16.5, 15.9, 14.14, 13.17, and 12.21, some connection slots are reserved for the new `rds_reserved` role, which is granted to Amazon RDS administrative users. The number of reserved connection slots is determined by the `rds.rds_reserved_connections` parameter. You may need to adjust the value of the `max_connections` parameter to account for the number of Amazon RDS reserved connection slots.

  The `rds_reserved` role is a new predefined role created by Amazon RDS. Predefined roles and their privileges can't be changed. You can't drop, rename, or modify privileges for these predefined roles. Attempting to modify a predefined role results in an error.
+ Added vacuum blocker detection to improve autovacuum monitoring. For more information, see [Identify and resolve aggressive vacuum blockers in RDS for PostgreSQL](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.Autovacuum_Monitoring.html)
+ Unblocked `ALTER TEMP TABLE` and `DROP TEMP TABLE` in Blue/Green replication.
+ Added the `rds_tools.pg_ls_multixactdir()` function for `pg_multixact` to monitor the directory disk space usage.
+ Added support for `plrust` version 1.2.7.

**Updated features**
+ `PostGIS` was updated to version 3.5.0, and the following dependencies were updated:
  + `json-c` was updated to version 0.18\$120240915.
  + `GDAL` was updated to version 3.9.3
  + `PROJ` was updated to version 9.5.0
  + `PROJ_DATA` was updated to version 1.19
+ The `orafce` extension was updated to version 4.13.4.
+ The `pg_bigm` extension was updated to version 1.2\$120240606.
+ The `pg_proctab` extension was updated to version 0.0.12.
+ The `pg_repack` extension was updated to version 1.5.1.
+ The `pgrouting` extension was updated to version 3.6.3.
+ The `pgvector` extension was updated to version 0.8.0.
+ The `rdkit` extension was updated to version 2024\$109\$12(4.6.1).
+ The `rds_tools` extension was updated to version 1.8.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 17](postgresql-extensions.md#postgresql-extensions-17x).

### PostgreSQL version 17.0 in the Amazon RDS Preview environment
<a name="postgresql-versions-version170Preview"></a>

**Note**  
The preview documentation for Amazon RDS PostgreSQL version 17 is subject to change.

PostgreSQL 17 contains many new features and enhancements that can be seen in the following release documentation, [PostgreSQL 17](https://www.postgresql.org/docs/17/release-17.html).

**New features**
+ `GCC` was upgraded to version 12.4.0
+ Introduced a new Amazon RDS-specific parameter, `rds.logical_slot_sync_dbname`, to specify the dbname for the PostgreSQL version 17 logical slots synchronization and failover feature.For more information, see [Managing logical slot synchronization for RDS for PostgreSQL](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.pglogical.slot.synchronization.html). 

This version also includes the following extension and dependency updates:
+ The following `PostGIS` dependencies were updated:
  + `gdal` was upgraded to version 3.9.2
  + `PROJ` was upgraded to version 9.4.1
  + `PROJ_DATA` was upgraded to version 1.18
  + `GEOS` was upgraded to version 3.13.0
+ The `oracle_fdw` extension was updated to version 2.7.0.
+ The `orafce` extension was updated to version 4.12.0.
+ The `pg_buffercache` extension was updated to version 1.5.
+ The `pg_cron` extension was updated to version 1.6.4.
+ The `pg_stat_statements` extension was updated to version 1.11.
+ The `pgaudit` extension was updated to version 17.0.
+ The `pgvector` extension was updated to version 0.7.4.
+ The `plprofiler` extension was updated to version 4.2.5.
+ The `rds_tools` extension was updated to version 1.6.
+ The `tds_fdw` extension was updated to version 2.0.4.

The following extension supported in RDS for PostgreSQL version 16 isn't supported for RDS for PostgreSQL version 17.0 in preview:
+ `plrust`

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 17](postgresql-extensions.md#postgresql-extensions-17x).

### PostgreSQL version 17 RC1 in the Amazon RDS Preview environment
<a name="postgresql-versions-version17RC1"></a>

**Note**  
The preview documentation for Amazon RDS for PostgreSQL version 17 is subject to change.

PostgreSQL 17 RC1 contains many new features and enhancements that can be seen in the following release documentation, [PostgreSQL 17 RC1 Released\$1](https://www.postgresql.org/about/news/postgresql-17-rc1-released-2926/).

**New features**
+ Performance Insights is supported in the preview environment.

**New extensions**
+ The `pg_logical` extension was added.

This version also includes the following extension updates:
+ The `address_standardizer` extension was updated to version 3.5.0alpha2.
+ The `address_standardizer_data_us` extension was updated to version 3.5.0alpha2.
+ The `PostGIS` extension was updated to version 3.5.0alpha2.
+ The `postgis_raster` extension was updated to version 3.5.0alpha2.
+ The `postgis_tiger_geocoder` extension was updated to version 3.5.0alpha2.
+ The `postgis_topology` extension was updated to version 3.5.0alpha2.

The following extension supported in RDS for PostgreSQL version 16 isn't supported in RDS for PostgreSQL version 17 RC1 in preview:
+ `plrust`

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 17](postgresql-extensions.md#postgresql-extensions-17x).

### PostgreSQL version 17 Beta 3 in the Amazon RDS Preview environment
<a name="postgresql-versions-version17Beta3"></a>

**Note**  
The preview documentation for Amazon RDS PostgreSQL version 17 is subject to change.

PostgreSQL 17 Beta 3 contains many new features and enhancements that can be seen in the following release documentation, [PostgreSQL 17 Beta 3 Released\$1](https://www.postgresql.org/about/news/postgresql-164-158-1413-1316-1220-and-17-beta-3-released-2910/).

**New features**
+ The t4g instance type is supported in the Preview environment.
+ The `wal_compression` default value for TAZ cluster is now `lz4` instead of `zstd`.

**New extensions**
+ The `pg_hint_plan` extension was added.
+ The `plv8` extension was added.
+ The `rdkit` extension was added.

This version also includes the following extension updates:
+ The `orafce` extension was updated to version 4.10.3.
+ The `pg_cron` extension was updated to version 1.6.3.
+ The `pg_vector` extension was updated to version 0.7.3.

The following extensions supported in Amazon RDS PostgreSQL version 16 aren't supported for Amazon RDS PostgreSQL version 17 Beta 3 in preview:
+ `pglogical`
+ `plrust`

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 17](postgresql-extensions.md#postgresql-extensions-17x).

### PostgreSQL version 17 Beta 2 in the Amazon RDS Preview environment
<a name="postgresql-versions-version17Beta2"></a>

PostgreSQL 17 Beta 2 contains many new features and enhancements that can be seen in the following release documentation, [PostgreSQL 17 Beta 2 Released\$1](https://www.postgresql.org/about/news/postgresql-17-beta-2-released-2885/).

**New extensions**
+ The `h3-pg` extension was added.
+ The `mysql_fdw` extension was added.
+ The `pg_cron` extension was added.
+ The `pgactive` extension was added.
+ The `pgAudit` extension was added.
+ The `pg_repack` extension was added.
+ The `tds_fdw` extension was added.

This version also includes the following extension update:
+ The `pgTAP` extension was updated to version 1.3.3.

The following extensions supported in Amazon RDS PostgreSQL version 16 aren't supported for Amazon RDS PostgreSQL version 17 Beta 2 in preview:
+ `pg_hint_plan`
+ `pglogical`
+ `plrust`
+ `plv8`
+ `rdkit`

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 17](postgresql-extensions.md#postgresql-extensions-17x).

### PostgreSQL version 17 Beta 1 in the Amazon RDS Preview environment
<a name="postgresql-versions-version17Beta1"></a>

PostgreSQL 17 Beta 1 contains many new features and enhancements that can be seen in the release documentation: [PostgreSQL 17 Beta 1 Released\$1](https://www.postgresql.org/about/news/postgresql-164-158-1413-1316-1220-and-17-beta-3-released-2910/).

The following extensions supported in Amazon RDS PostgreSQL version 16 aren't supported for Amazon RDS PostgreSQL version 17 Beta 1 in preview:
+ `h3pg`
+ `MySQL_FDW`
+ `pg_cron`
+ `pg_repack`
+ `pgactive`
+ `pgaudit`
+ `pghintplan`
+ `pglogical`
+ `plrust`
+ `plv8`
+ `rdkit`
+ `tds_fdw`

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 17](postgresql-extensions.md#postgresql-extensions-17x).

## PostgreSQL 16 versions
<a name="postgresql-version16"></a>

**Topics**
+ [PostgreSQL version 16.13 on Amazon RDS](#postgresql-versions-version1613)
+ [PostgreSQL version 16.12 on Amazon RDS](#postgresql-versions-version1612)
+ [PostgreSQL version 16.11 on Amazon RDS](#postgresql-versions-version1611)
+ [PostgreSQL version 16.10-R2 on Amazon RDS](#postgresql-versions-version1610R2)
+ [PostgreSQL version 16.10 on Amazon RDS](#postgresql-versions-version1610)
+ [PostgreSQL version 16.9-R2 on Amazon RDS](#postgresql-versions-version169)
+ [PostgreSQL version 16.9 on Amazon RDS](#postgresql-versions-version169R1)
+ [PostgreSQL version 16.8-R2 on Amazon RDS](#postgresql-versions-version168R2)
+ [PostgreSQL version 16.8 on Amazon RDS](#postgresql-versions-version168)
+ [PostgreSQL version 16.7 on Amazon RDS](#postgresql-versions-version167R1)
+ [PostgreSQL version 16.6-R3 on Amazon RDS](#postgresql-versions-version166R3)
+ [PostgreSQL version 16.6-R2 on Amazon RDS](#postgresql-versions-version166R2)
+ [PostgreSQL version 16.6 on Amazon RDS](#postgresql-versions-version166)
+ [PostgreSQL version 16.5 on Amazon RDS](#postgresql-versions-version165)
+ [PostgreSQL version 16.4-R3 on Amazon RDS](#postgresql-versions-version164R3)
+ [PostgreSQL version 16.4-R2 on Amazon RDS](#postgresql-versions-version164R2)
+ [PostgreSQL version 16.4 on Amazon RDS](#postgresql-versions-version164)
+ [PostgreSQL version 16.3-R4 on Amazon RDS](#postgresql-versions-version163R4)
+ [PostgreSQL version 16.3-R3 on Amazon RDS](#postgresql-versions-version163R3)
+ [PostgreSQL version 16.3-R2 on Amazon RDS](#postgresql-versions-version163R2)
+ [PostgreSQL version 16.3 on Amazon RDS](#postgresql-versions-version163)
+ [PostgreSQL version 16.2-R3 on Amazon RDS](#postgresql-versions-version162R3)
+ [PostgreSQL version 16.2-R2 on Amazon RDS](#postgresql-versions-version162R2)
+ [PostgreSQL version 16.2 on Amazon RDS](#postgresql-versions-version162)
+ [PostgreSQL version 16.1-R2 on Amazon RDS](#postgresql-versions-version161R2)
+ [PostgreSQL version 16.1 on Amazon RDS](#postgresql-versions-version161)
+ [PostgreSQL version 16.0 in the Amazon RDS Preview environment](#postgresql-versions-version160Preview)
+ [PostgreSQL version 16 RC1 in the Amazon RDS Preview environment](#postgresql-versions-version16RC1)
+ [PostgreSQL version 16 Beta 3 in the Amazon RDS Preview environment](#postgresql-versions-version16Beta3)
+ [PostgreSQL version 16 Beta 2 in the Amazon RDS Preview environment](#postgresql-versions-version16Beta2)
+ [PostgreSQL version 16 Beta 1 in the Amazon RDS Preview environment](#postgresql-versions-version16Beta1)

### PostgreSQL version 16.13 on Amazon RDS
<a name="postgresql-versions-version1613"></a>

PostgreSQL version 16.13 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 16.13 release](https://www.postgresql.org/docs/release/16.13/).

### PostgreSQL version 16.12 on Amazon RDS
<a name="postgresql-versions-version1612"></a>

PostgreSQL version 16.12 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 16.12 release](https://www.postgresql.org/docs/release/16.12/).

**General enhancements**
+ Improved stability and reliability for database operations.
+ Enhanced data collection capabilities.

This version also includes the following extension changes:
+ The `pgactive` extension was updated to version 2.1.7.
+ The `pglogical` extension was updated to version 2.4.6.
+ The `pg_hint_plan` extension was updated to version 1.6.2.
+ The `orafce` extension was updated to version 4.16.3.
+ The `pg_bigm` extension was updated to version 1.2-20250903.
+ The `pg_cron` extension was updated to version 1.6.7.
+ The `hypopg` extension was updated to version 1.4.2.
+ The `tds_fdw` extension was updated to version 2.0.5.
+ The `pg_repack` extension was updated to version 1.5.3.
+ The `pgvector` extension was updated to version 0.8.1.
+ The `mysql_fdw` extension was updated to version 2.9.3.
+ The `oracle_fdw` extension was updated to version 2.8.0.

### PostgreSQL version 16.11 on Amazon RDS
<a name="postgresql-versions-version1611"></a>

PostgreSQL version 16.11 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 16.11 release](https://www.postgresql.org/docs/release/16.11/).

**General enhancements**
+ The pgcollection extension is now available for RDS PostgreSQL version 15.15 and above(16.11 and 17.7), providing a memory-optimized data type designed for high-performance use inside PL/pgSQL functions. A collection stores key-value pairs where each key is a unique text string (maximum 32,767 characters) and values can be any PostgreSQL type including composite types, with all elements in a collection required to be of the same type. Collections maintain entries in creation order and can hold an unlimited number of elements constrained only by available database memory, with a maximum persisted size of 1GB when stored as a table column..

This version also includes the following extension changes:
+ The `pg_tle` extension was updated to version 1.5.2.
+ The `h3-pg` extension was updated to version 4.2.3.

### PostgreSQL version 16.10-R2 on Amazon RDS
<a name="postgresql-versions-version1610R2"></a>

PostgreSQL version 16.10-R2 is now available on Amazon RDS. 

This version also includes the following extension changes:
+ The `pgactive` extension was updated to version 2.1.6.

### PostgreSQL version 16.10 on Amazon RDS
<a name="postgresql-versions-version1610"></a>

PostgreSQL version 16.10 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 16.10 release](https://www.postgresql.org/docs/release/16.10/).

**General enhancements**
+ Grant rds\$1superuser access to pg\$1wal\$1pause / pg\$1wal\$1replay functions to perform logical upgrades and verification/validation.
+ Updated V8 engine to version 11.5.150.2 for the `plv8` extension 3.1.10.

This version also includes the following extension changes:
+ The `pg_repack` extension was updated to version 1.5.2.
+ The `oracle_fdw` extension was updated to version 2.8.0.
+ The `pgactive` extension was updated to version 2.1.5.

### PostgreSQL version 16.9-R2 on Amazon RDS
<a name="postgresql-versions-version169"></a>

PostgreSQL version 16.9-R2 is now available on Amazon RDS. 

**General enhancements**
+ Updated V8 engine to version 11.5.150.2 for the `plv8` extension 3.1.10.

This version also includes the following extension changes:
+ The `pgactive` extension was updated to version 2.1.6.

### PostgreSQL version 16.9 on Amazon RDS
<a name="postgresql-versions-version169R1"></a>

PostgreSQL version 16.9 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 16.9 release](https://www.postgresql.org/docs/release/16.9/).

**General enhancements**
+ Fixed for the `address_standardizer_data_us` extension issue regarding ALTER EXTENSION UPDATE failure.
+ Changed the Oracle client library version on x86 to 19.26.0.0.0.
+ Fixed the `pgactive` extension unable to upgrade issue due to incorrect extension upgrade scripts which causes replication to break after engine upgrade.

This version also includes the following extension changes:
+ The `pg_repack` extension was updated to version 1.5.1.
+ The `pglogical` extension was updated to version 2.4.5.
+ The `PgAudit` extension was updated to version 16.1.
+ The `RDKit` extension was updated to version 2024\$109\$16.

### PostgreSQL version 16.8-R2 on Amazon RDS
<a name="postgresql-versions-version168R2"></a>

PostgreSQL version 16.8-R2 is now available on Amazon RDS. 

**Fixes and improvements**
+ Updated V8 engine to version 11.5.150.2 for the `plv8` extension 3.1.10.

This version also includes the following extension changes:
+ The `pgactive` extension was updated to version 2.1.6.

### PostgreSQL version 16.8 on Amazon RDS
<a name="postgresql-versions-version168"></a>

PostgreSQL version 16.8 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 16.8 release](https://www.postgresql.org/docs/release/16.8/).

### PostgreSQL version 16.7 on Amazon RDS
<a name="postgresql-versions-version167R1"></a>

PostgreSQL version 16.7 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 16.7 release](https://www.postgresql.org/docs/release/16.7/).

**New features and enhancements**.
+ In Blue/Green deployments, creating or modifying temporary objects is no longer classified as restricted DDL.
+ Resolved an issue where DVB returned duplicate rows during slow vacuum analysis.
+ Resolved CVE RUSTSEC-2024-0421 by upgrading URL Rust crate to 2.5.4. For more information, see [RUSTSEC-2024-0421](https://rustsec.org/advisories/RUSTSEC-2024-0421.html).
+ Applied Promise.any error allocation fix for V8 9.7.37, PLV8 3.1.10.

**This version also includes the following extension changes:**.
+ The `rds_tools` extension was updated to 1.9.
+ The `orafce` extension was updated to 4.14.0.
+ The `pg_cron` extension was updated to 1.6.5.
+ The `rdkit` extension was updated to 2024\$109\$13.
+ The `pg_active` extension was updated to 2.1.4.
+ The `pg_partman` extension was updated to 5.2.4.
+ The `prefix` extension was updated to 1.2.10.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 16](postgresql-extensions.md#postgresql-extensions-16x).

### PostgreSQL version 16.6-R3 on Amazon RDS
<a name="postgresql-versions-version166R3"></a>

PostgreSQL version 16.6-R3 is now available on Amazon RDS. 

**General enhancements**
+ Updated V8 engine to version 11.5.150.2 for the `plv8` extension 3.1.10.

### PostgreSQL version 16.6-R2 on Amazon RDS
<a name="postgresql-versions-version166R2"></a>

PostgreSQL version 16.6-R2 is now available on Amazon RDS. This release contains fix for PLV8 [CVE-2022-4174](https://nvd.nist.gov/vuln/detail/cve-2022-4174) and Rust [CVE RUSTSEC-2024-042](https://rustsec.org/advisories/RUSTSEC-2024-0421.html) for PostgreSQL announced in [PostgreSQL 16.6](https://www.postgresql.org/docs/release/16.6/).

### PostgreSQL version 16.6 on Amazon RDS
<a name="postgresql-versions-version166"></a>

PostgreSQL version 16.6 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 16.6 release](https://www.postgresql.org/docs/release/16.6/).

### PostgreSQL version 16.5 on Amazon RDS
<a name="postgresql-versions-version165"></a>

PostgreSQL version 16.5 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in [PostgreSQL 16.5](https://www.postgresql.org/docs/release/16.5/).

**New features**
+ Starting in RDS for PostgreSQL versions 17.1, 16.5, 15.9, 14.14, 13.17, and 12.21, some connection slots are reserved for the new `rds_reserved` role, which is granted to Amazon RDS administrative users. The number of reserved connection slots is determined by the `rds.rds_reserved_connections` parameter . You may need to adjust the value of the `max_connections` parameter to account for the number of Amazon RDS reserved connection slots.

  The `rds_reserved` role is a new predefined role created by Amazon RDS. Predefined roles and their privileges can't be changed. You can't drop, rename, or modify privileges for these predefined roles. Attempting to modify a predefined role results in an error.
+ Unblocked `ALTER TEMP TABLE` and `DROP TEMP TABLE` in Blue/Green replication.
+ Added the `rds_tools.pg_ls_multixactdir()` function for `pg_multixact` to monitor the directory disk space usage.

**Updated features**
+ The `oracle_fdw` extension was updated to version 2.7.0.
+ The `orafce` extension was updated to version 4.13.4.
+ The `pg_cron` extension was updated to version 1.6.4.
+ The `pg_hint_plan` extension was updated to version 1.6.1.
+ The `pgvector` extension was updated to version 0.8.0.
+ The `plprofiler` extension was updated to version 4.2.5.
+ The `PostGIS` extension was updated to version 3.4.3.
+ The `rdkit` extension was updated to version 4.6.1.
+ The `rds_tools` extension was updated to version 1.7.
+ The `tds_fdw` extension was updated to version 2.0.4.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 16](postgresql-extensions.md#postgresql-extensions-16x).

### PostgreSQL version 16.4-R3 on Amazon RDS
<a name="postgresql-versions-version164R3"></a>

PostgreSQL version 16.4-R3 is now available on Amazon RDS. This release contains fixes for [CVE-2022-4174](https://nvd.nist.gov/vuln/detail/cve-2022-4174) and Rust [CVE RUSTSEC-2024-042](https://rustsec.org/advisories/RUSTSEC-2024-0421.html) for PostgreSQL announced in [PostgreSQL 16.4](https://www.postgresql.org/docs/release/16.4/).

### PostgreSQL version 16.4-R2 on Amazon RDS
<a name="postgresql-versions-version164R2"></a>

PostgreSQL version 16.4-R2 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 16.4 release](https://www.postgresql.org/docs/release/16.4/).

### PostgreSQL version 16.4 on Amazon RDS
<a name="postgresql-versions-version164"></a>

PostgreSQL version 16.4 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 16.4 release](https://www.postgresql.org/docs/release/16.4/).

**New features and enhancements**
+ [Delegated extension role](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/RDS_delegated_ext.html) was added.
+ Fixed [CVE-2024-7348](https://www.postgresql.org/support/security/CVE-2024-7348/) that prevents search path restrictions bypass through pattern-matching queries in information\$1schema.

This version also includes the following extension updates:
+ The `hypopg` extension was updated to 1.4.1.
+ The `mysql_fdw` extension was updated to 2.9.2.
+ The `orafce` extension was updated to 4.10.3.
+ The `pg_cron` extension was updated to 1.6.3.
+ The `pgTAP` extension was updated to 1.3.3.
+ The `pgvector` extension was updated to 0.7.3.
+ The `rdkit` extension was updated to 4.5.0 (Release 2024\$103\$15).
+ The `wal2json` extension was updated to 2.6.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 16](postgresql-extensions.md#postgresql-extensions-16x).

### PostgreSQL version 16.3-R4 on Amazon RDS
<a name="postgresql-versions-version163R4"></a>

PostgreSQL version 16.3-R4 is now available on Amazon RDS. This release contains fixes for [CVE-2022-4174](https://nvd.nist.gov/vuln/detail/cve-2022-4174) and Rust [CVE RUSTSEC-2024-042](https://rustsec.org/advisories/RUSTSEC-2024-0421.html) for PostgreSQL announced in [PostgreSQL 16.3](https://www.postgresql.org/docs/release/16.3/).

### PostgreSQL version 16.3-R3 on Amazon RDS
<a name="postgresql-versions-version163R3"></a>

PostgreSQL version 16.3-R3 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 16.3 release](https://www.postgresql.org/docs/release/16.3/).

### PostgreSQL version 16.3-R2 on Amazon RDS
<a name="postgresql-versions-version163R2"></a>

PostgreSQL version 16.3-R2 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 16.3 release](https://www.postgresql.org/docs/release/16.3/).

**New features and enhancements**
+ Includes support for four new crates in PL/Rust, including:
  + `regex`
  + `serde`
  + `serde_json`
  + `url`
+ Fixed a security issue in `pg_repack`
+ Fixed a performance issue in `pgvector` for index creation on halfvec data type
+ Fixed a bug in `aws_s3` causing import queries to occasionally get stuck and fail to terminate

### PostgreSQL version 16.3 on Amazon RDS
<a name="postgresql-versions-version163"></a>

PostgreSQL version 16.3 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 16.3 release](https://www.postgresql.org/docs/release/16.3/).

**New features and enhancements**
+ The blue/green deployment switchover won’t be blocked by the `REFRESH MATERIALIZED VIEW` statement.
+ Fixed the permission denial for the `CREATE DATABASE WITH OWNER` statement.
+ Upgraded the `aws_s3` extension to version 1.2 to support the export to S3 with the KMS customer managed key.
+ Fixed a pgvector compatibility issue with some of the previous generations of DB instances, such as m4.

This version also includes the following extension updates:
+ The `aws_s3` extension was updated to 1.2.
+ The `orafce` extension was updated to 4.9.4.
+ The `pg_partman` extension was updated to 5.1.0.
+ The `pgvector` extension was updated to 0.7.0.
+ The `postgis` extension was updated to 3.4.2.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 16](postgresql-extensions.md#postgresql-extensions-16x).

### PostgreSQL version 16.2-R3 on Amazon RDS
<a name="postgresql-versions-version162R3"></a>

PostgreSQL version 16.2-R3 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 16.2 release](https://www.postgresql.org/docs/release/16.2/).

**New features and enhancements**.
+ Fixed a security issue in `pg_repack`

### PostgreSQL version 16.2-R2 on Amazon RDS
<a name="postgresql-versions-version162R2"></a>

PostgreSQL version 16.2-R2 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 16.2 release](https://www.postgresql.org/docs/release/16.2/).

**New features and enhancements**.
+ Fixed a bug allowing the querying of the security invoker views as an unprivileged user.
+ Fixed a bug preventing `tds_fdw` from connecting when TLS is enabled.
+ Fixed a bug preventing upgrades to `PostGIS` version 3.4.1.
+ Fixed an error with the `aws_s3` extension when the Region was not provided.

**This version also includes the following extension changes:**.
+ The `pg_partman` extension was updated to 5.0.1.
+ The `pg_tle` extension was updated to 1.4.0.
+ The `pgactive` extension was updated to 2.1.3.
+ The `pgtap` extension was updated to 1.3.2.
+ The `pgvector` extension was updated to 0.6.2.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 16](postgresql-extensions.md#postgresql-extensions-16x).

### PostgreSQL version 16.2 on Amazon RDS
<a name="postgresql-versions-version162"></a>

#### PostgreSQL version 16.2 on Amazon RDS
<a name="postgresql-versions-version162"></a>

PostgreSQL version 16.2 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 16.2 release.](https://www.postgresql.org/docs/release/16.2/).

**New features and enhancements**
+ Added support for `pg_log_standby_snapshot`
+ Fixed the multisecond latency on the `aws_lambda` calls
+ Fixed a bug preventing the termination of autovacuum
+ Fixed a bug preventing the creation of the `h3` extension

This version includes the following changes:
+ The `orafce` extension was updated to version 4.9.0.
+ The `pg_repack` extension was updated to version 1.5.0.
+ The `pgactive` extension was updated to version 2.1.2.
+ The `pgvector` extension was updated to 0.6.0.
+ The `plv8` extension was updated to 3.1.10.
+ The `PostGIS` extension was updated to 3.4.1.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 16](postgresql-extensions.md#postgresql-extensions-16x).

### PostgreSQL version 16.1-R2 on Amazon RDS
<a name="postgresql-versions-version161R2"></a>

PostgreSQL version 16.1-R2 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 16 release.](https://www.postgresql.org/docs/release/16.1/).

**New features and enhancements**
+ Fixed a crash in `CatalogCacheComputeHashValue` with `dblink_connect` due to a `Null` or `invalid` connection 
+  Supported the AWS SDK version of the `aws_s3` extension 
+ Fixed the overflow in the `pg_transport` extension 
+ Removed the unsupported shared libraries from the engine binary

This version includes the following changes:
+ The `plrust` extension was updated to version 1.2.7.
+ The `plv8` extension was updated to version 3.1.9.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 16](postgresql-extensions.md#postgresql-extensions-16x).

### PostgreSQL version 16.1 on Amazon RDS
<a name="postgresql-versions-version161"></a>

PostgreSQL version 16.1 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 16 release.](https://www.postgresql.org/docs/release/16.1/).

**New features and enhancements**
+ The aws-lc now uses a FIPS version.
+ Allow setting TLS 1.3 as the `ssl_min_protocol_version` and `ssl_max_protocol_version`.
+ The `pgactive` extension was added.
+ The `pglogical` extension was added.
+ By default, the `default_toast_compression` DB instance parameter is set to `lz4`.
+ The `rds.rds_superuser_reserved_connections` parameter has been deprecated in RDS for PostgreSQL version 16. The `reserved_connections` parameter should be utilized to reserve the number of connection slots. The `reserved_connections` parameter sets the number of connection slots reserved for roles with the `pg_use_reserved_connections` privileges. `rds_superuser` is a member of the `pg_use_reserved_connections` role by default. For more information, see the PostgreSQL documentation [reserved connections](https://www.postgresql.org/docs/current/runtime-config-connection.html#GUC-RESERVED-CONNECTIONS).

This version includes the following changes:
+ The `hll` extension was updated to version 2.1.8.
+ The `oracle_fdw` extension was updated to version 2.6.0.
+ The `orafce` extension was updated to version 4.6.1.
+ The `pg_cron` extension was updated to version 1.6.1.
+ The `pg_partman` extension was updated to version 5.0.0.
+ The `pgtap` extension was updated to version 1.3.1.
+ The `pgvector` extension was updated to version 0.5.1.
+ The `plprofiler` extension was updated to version 4.2.4.
+ The `plrust` extension was updated to version 1.2.6.
+ The `plv8` extension was updated to version 3.1.8.
+ The `rdkit` extension was updated to version 4.4.0.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 16](postgresql-extensions.md#postgresql-extensions-16x).

### PostgreSQL version 16.0 in the Amazon RDS Preview environment
<a name="postgresql-versions-version160Preview"></a>

**Note**  
The preview documentation for Amazon RDS PostgreSQL version 16.0 is subject to change.

**Note**  
RDS for PostgreSQL versions 16 RC1, 16 Beta 3, 16 Beta 2, and 16 Beta 1 will not be supported after RDS for PostgreSQL version 16.0 is released in the Preview environment.

PostgreSQL version 16.0 is now available in the Amazon RDS Preview environment. PostgreSQL version 16 contains several improvements that are described in the [PostgreSQL 16 release](https://www.postgresql.org/about/news/postgresql-16-released-2715/).

This version includes the following changes:
+ The `mysql_fdw` extension was updated to version 2.9.1
+ The `pgrouting` extension was updated to version 3.5.0
+ The `pgvector` extension was updated to version 0.5.0

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 16](postgresql-extensions.md#postgresql-extensions-16x).

### PostgreSQL version 16 RC1 in the Amazon RDS Preview environment
<a name="postgresql-versions-version16RC1"></a>

**Note**  
The preview documentation for Amazon RDS PostgreSQL version 16 RC1 is subject to change.

PostgreSQL version 16 RC1 is now available in the Amazon RDS Preview environment. PostgreSQL version 16 RC1 contains several improvements that are described in the following PostgreSQL documentation: [PostgreSQL 16 RC1 Released](https://www.postgresql.org/about/news/postgresql-16-rc1-released-2702/).

**New extensions**
+ The `pg_proctab` extension was added.
+ The `rdkit` extension was added.
+ The `hll` extension was added.
+ The `pg_cron` extension was added.

This version also includes the following change:
+ The `PostGIS` extension was updated to version 3.4.0.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 16](postgresql-extensions.md#postgresql-extensions-16x).

### PostgreSQL version 16 Beta 3 in the Amazon RDS Preview environment
<a name="postgresql-versions-version16Beta3"></a>

**Note**  
The preview documentation for Amazon RDS PostgreSQL version 16 beta 3 is subject to change.

PostgreSQL version 16 Beta 3 is now available in the Amazon RDS Preview environment. PostgreSQL version 16 Beta 3 contains several improvements that are described in the following PostgreSQL documentation: [PostgreSQL 16 Beta 3 Released](https://www.postgresql.org/about/news/postgresql-154-149-1312-1216-1121-and-postgresql-16-beta-3-released-2689/).

**New extensions**
+ The `h3-pg` extension was added.
+ The `mysql_fdw` extension was added.
+ The `oracle_fdw` extension was added.
+ The `pg_bigm` extension was added.
+ The `pg_hint_plan` extension was added.
+ The `pgAudit` extension was added.
+ The `plprofiler` extension was added.
+ The `plrust` extension was added.
+ The `plv8` extension was added.

This version also includes the following change:
+ The `pg_tle` extension was updated to version 1.1.0.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 16](postgresql-extensions.md#postgresql-extensions-16x).

### PostgreSQL version 16 Beta 2 in the Amazon RDS Preview environment
<a name="postgresql-versions-version16Beta2"></a>

**Note**  
The preview documentation for Amazon RDS PostgreSQL version 16 Beta 2 is subject to change.

PostgreSQL version 16 Beta 2 is now available in the Amazon RDS Preview environment. PostgreSQL version 16 Beta 2 contains several improvements that are described in the following PostgreSQL documentation: [PostgreSQL 16 Beta 2 Released](https://www.postgresql.org/about/news/postgresql-16-beta-2-released-2665/).

**New extensions**
+ The `aws_commons` extension was added.
+ The `aws_lambda` extension was added.
+ The `aws_s3` extension was added.
+ The `hypopg` extension was added.
+ The `orafce` extension was added.

This version also includes the following change:
+ `pgvector` was updated to version 0.4.4

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 16](postgresql-extensions.md#postgresql-extensions-16x).

### PostgreSQL version 16 Beta 1 in the Amazon RDS Preview environment
<a name="postgresql-versions-version16Beta1"></a>

**Note**  
The preview documentation for Amazon RDS PostgreSQL version 16 Beta 1 is subject to change.

PostgreSQL version 16 Beta 1 is now available in the Amazon RDS Preview environment. PostgreSQL version 16 Beta 1 contains several improvements that are described in the following PostgreSQL documentation: [PostgreSQL 16 Beta 1 Released](https://www.postgresql.org/about/news/postgresql-16-beta-1-released-2643/).

The following extensions supported in Amazon RDS PostgreSQL version 15 aren't supported for Amazon RDS PostgreSQL version 16 Beta 1 in preview:
+ `aws_commons`
+ `aws_lambda`
+ `aws_s3`
+ `hll`
+ `hypoPG`
+ `mysql_fdw`
+ `oracle_fdw`
+ `orafce`
+ `pg_bigm`
+ `pg_cron`
+ `pg_proctab`
+ `pgaudit`
+ `pghintplan`
+ `pglogical`
+ `plprofiler`
+ `plrust`
+ `plv8`
+ `rdkit`

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 16](postgresql-extensions.md#postgresql-extensions-16x).

## PostgreSQL 15 versions (Some of these versions have reached the end of standard support or deprecated.)
<a name="postgresql-version15"></a>

**Topics**
+ [PostgreSQL version 15.17 on Amazon RDS](#postgresql-versions-version1517)
+ [PostgreSQL version 15.16 on Amazon RDS](#postgresql-versions-version1516)
+ [PostgreSQL version 15.15 on Amazon RDS](#postgresql-versions-version1515)
+ [PostgreSQL version 15.14-R2 on Amazon RDS](#postgresql-versions-version1514R2)
+ [PostgreSQL version 15.14 on Amazon RDS](#postgresql-versions-version1514)
+ [PostgreSQL version 15.13-R2 on Amazon RDS](#postgresql-versions-version1513)
+ [PostgreSQL version 15.13 on Amazon RDS](#postgresql-versions-version1513R1)
+ [PostgreSQL version 15.12-R2 on Amazon RDS](#postgresql-versions-version1512R2)
+ [PostgreSQL version 15.12 on Amazon RDS](#postgresql-versions-version1512)
+ [PostgreSQL version 15.11 on Amazon RDS](#postgresql-versions-version1511R1)
+ [PostgreSQL version 15.10-R3 on Amazon RDS](#postgresql-versions-version1510R3)
+ [PostgreSQL version 15.10-R2 on Amazon RDS](#postgresql-versions-version1510R2)
+ [PostgreSQL version 15.10 on Amazon RDS](#postgresql-versions-version1510)
+ [PostgreSQL version 15.9 on Amazon RDS](#postgresql-versions-version159)
+ [PostgreSQL version 15.8-R3 on Amazon RDS](#postgresql-versions-version158R3)
+ [PostgreSQL version 15.8-R2 on Amazon RDS](#postgresql-versions-version158R2)
+ [PostgreSQL version 15.8 on Amazon RDS](#postgresql-versions-version158)
+ [PostgreSQL version 15.7-R4 on Amazon RDS](#postgresql-versions-version157R4)
+ [PostgreSQL version 15.7-R3 on Amazon RDS](#postgresql-versions-version157R3)
+ [PostgreSQL version 15.7-R2 on Amazon RDS](#postgresql-versions-version157R2)
+ [PostgreSQL version 15.7 on Amazon RDS](#postgresql-versions-version157)
+ [PostgreSQL version 15.6-R3 on Amazon RDS (This version has reached the end of standard support.)](#postgresql-versions-version156R3)
+ [PostgreSQL version 15.6-R2 on Amazon RDS (This version has reached the end of standard support.)](#postgresql-versions-version156R2)
+ [PostgreSQL version 15.6 on Amazon RDS (This version has reached the end of standard support.)](#postgresql-versions-version156)
+ [PostgreSQL version 15.5-R2 on Amazon RDS (This version has reached the end of standard support.)](#postgresql-versions-version155R2)
+ [PostgreSQL version 15.5 on Amazon RDS (This version has reached the end of standard support.)](#postgresql-versions-version155)
+ [PostgreSQL version 15.4-R3 on Amazon RDS (This version has reached the end of standard support.)](#postgresql-versions-version154R3)
+ [PostgreSQL version 15.4-R2 on Amazon RDS (This version has reached the end of standard support.)](#postgresql-versions-version154R2)
+ [PostgreSQL version 15.4 on Amazon RDS (This version has reached the end of standard support.)](#postgresql-versions-version154)
+ [PostgreSQL version 15.3-R2 on Amazon RDS (Deprecated)](#postgresql-versions-version153R2)
+ [PostgreSQL version 15.3 on Amazon RDS (Deprecated)](#postgresql-versions-version153)
+ [PostgreSQL version 15.2-R2 on Amazon RDS (Deprecated)](#postgresql-versions-version152R2)
+ [PostgreSQL version 15.2 on Amazon RDS (Deprecated)](#postgresql-versions-version152)

### PostgreSQL version 15.17 on Amazon RDS
<a name="postgresql-versions-version1517"></a>

PostgreSQL version 15.17 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 15.17 release](https://www.postgresql.org/docs/release/15.17/).

### PostgreSQL version 15.16 on Amazon RDS
<a name="postgresql-versions-version1516"></a>

PostgreSQL version 15.16 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 15.16 release](https://www.postgresql.org/docs/release/15.16/).

**General enhancements**
+ Improved stability and reliability for database operations.
+ Enhanced data collection capabilities.

This version also includes the following extension changes:
+ The `pgactive` extension was updated to version 2.1.7.
+ The `pglogical` extension was updated to version 2.4.6.
+ The `pg_hint_plan` extension was updated to version 1.5.3.
+ The `orafce` extension was updated to version 4.16.3.
+ The `pg_bigm` extension was updated to version 1.2-20250903.
+ The `pg_cron` extension was updated to version 1.6.7.
+ The `hypopg` extension was updated to version 1.4.2.
+ The `tds_fdw` extension was updated to version 2.0.5.
+ The `pg_repack` extension was updated to version 1.5.3.
+ The `pgvector` extension was updated to version 0.8.1.
+ The `mysql_fdw` extension was updated to version 2.9.3.
+ The `oracle_fdw` extension was updated to version 2.8.0.

### PostgreSQL version 15.15 on Amazon RDS
<a name="postgresql-versions-version1515"></a>

PostgreSQL version 15.15 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 15.15 release](https://www.postgresql.org/docs/release/15.15/).

**General enhancements**
+ The pgcollection extension is now available for RDS PostgreSQL version 15.15 and above(16.11 and 17.7), providing a memory-optimized data type designed for high-performance use inside PL/pgSQL functions. A collection stores key-value pairs where each key is a unique text string (maximum 32,767 characters) and values can be any PostgreSQL type including composite types, with all elements in a collection required to be of the same type. Collections maintain entries in creation order and can hold an unlimited number of elements constrained only by available database memory, with a maximum persisted size of 1GB when stored as a table column.

This version also includes the following extension changes:
+ The `pg_tle` extension was updated to version 1.5.2.
+ The `h3-pg` extension was updated to version 4.2.3.

### PostgreSQL version 15.14-R2 on Amazon RDS
<a name="postgresql-versions-version1514R2"></a>

PostgreSQL version 15.14-R2 is now available on Amazon RDS. 

This version also includes the following extension changes:
+ The `pgactive` extension was updated to version 2.1.6.

### PostgreSQL version 15.14 on Amazon RDS
<a name="postgresql-versions-version1514"></a>

PostgreSQL version 15.14 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 15.14 release](https://www.postgresql.org/docs/release/15.14/).

**General enhancements**
+ Grant rds\$1superuser access to pg\$1wal\$1pause / pg\$1wal\$1replay functions to perform logical upgrades and verification/validation.
+ Updated V8 engine to version 11.5.150.2 for the `plv8` extension 3.1.10.

This version also includes the following extension changes:
+ The `pg_repack` extension was updated to version 1.5.2.
+ The `oracle_fdw` extension was updated to version 2.8.0.
+ The `pgactive` extension was updated to version 2.1.5.

### PostgreSQL version 15.13-R2 on Amazon RDS
<a name="postgresql-versions-version1513"></a>

PostgreSQL version 15.13-R2 is now available on Amazon RDS. 

**General enhancements**
+ Updated V8 engine to version 11.5.150.2 for the `plv8` extension 3.1.10.

This version also includes the following extension changes:
+ The `pgactive` extension was updated to version 2.1.6.

### PostgreSQL version 15.13 on Amazon RDS
<a name="postgresql-versions-version1513R1"></a>

PostgreSQL version 15.13 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 15.13 release](https://www.postgresql.org/docs/release/15.13/).

**General enhancements**
+ Fixed for the `address_standardizer_data_us` extension issue regarding ALTER EXTENSION UPDATE failure.
+ Changed the Oracle client library version on x86 to 19.26.0.0.0.
+ Fixed the `pgactive` extension unable to upgrade issue due to incorrect extension upgrade scripts which causes replication to break after engine upgrade.

This version also includes the following extension changes:
+ The `pg_repack` extension was updated to version 1.5.1.
+ The `pglogical` extension was updated to version 2.4.5.
+ The `PgAudit` extension was updated to version 1.7.1.
+ The `RDKit` extension was updated to version 2024\$109\$16.

### PostgreSQL version 15.12-R2 on Amazon RDS
<a name="postgresql-versions-version1512R2"></a>

PostgreSQL version 15.12-R2 is now available on Amazon RDS. 

**Fixes and improvements**
+ Updated V8 engine to version 11.5.150.2 for the `plv8` extension 3.1.10.

This version also includes the following extension changes:
+ The `pgactive` extension was updated to version 2.1.6.

### PostgreSQL version 15.12 on Amazon RDS
<a name="postgresql-versions-version1512"></a>

PostgreSQL version 15.12 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 15.12 release](https://www.postgresql.org/docs/release/15.12/).

### PostgreSQL version 15.11 on Amazon RDS
<a name="postgresql-versions-version1511R1"></a>

PostgreSQL version 15.11 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 15.11 release](https://www.postgresql.org/docs/release/15.11/).

**New features and enhancements**.
+ In Blue/Green deployments, creating or modifying temporary objects is no longer classified as restricted DDL.
+ Resolved an issue where DVB returned duplicate rows during slow vacuum analysis.
+ Resolved CVE RUSTSEC-2024-0421 by upgrading URL Rust crate to 2.5.4. For more information, see [RUSTSEC-2024-0421](https://rustsec.org/advisories/RUSTSEC-2024-0421.html).
+ Applied Promise.any error allocation fix for V8 9.7.37, PLV8 3.1.10.

**This version also includes the following extension changes:**.
+ The `rds_tools` extension was updated to 1.9.
+ The `orafce` extension was updated to 4.14.0.
+ The `pg_cron` extension was updated to 1.6.5.
+ The `rdkit` extension was updated to 2024\$109\$13.
+ The `pg_active` extension was updated to 2.1.4.
+ The `pg_partman` extension was updated to 5.2.4.
+ The `prefix` extension was updated to 1.2.10.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 15](postgresql-extensions.md#postgresql-extensions-15x).

### PostgreSQL version 15.10-R3 on Amazon RDS
<a name="postgresql-versions-version1510R3"></a>

PostgreSQL version 15.10-R3 is now available on Amazon RDS. 

**General enhancements**
+ Updated V8 engine to version 11.5.150.2 for the `plv8` extension 3.1.10.

### PostgreSQL version 15.10-R2 on Amazon RDS
<a name="postgresql-versions-version1510R2"></a>

PostgreSQL version 15.10-R2 is now available on Amazon RDS. This release fix for PLV8 [CVE-2022-4174](https://nvd.nist.gov/vuln/detail/cve-2022-4174) and Rust [CVE RUSTSEC-2024-042](https://rustsec.org/advisories/RUSTSEC-2024-0421.html) for PostgreSQL announced in [PostgreSQL 15.10](https://www.postgresql.org/docs/release/15.10/).

### PostgreSQL version 15.10 on Amazon RDS
<a name="postgresql-versions-version1510"></a>

PostgreSQL version 15.10 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 15.10 release](https://www.postgresql.org/docs/release/15.10/).

### PostgreSQL version 15.9 on Amazon RDS
<a name="postgresql-versions-version159"></a>

PostgreSQL version 15.9 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in [PostgreSQL 15.9](https://www.postgresql.org/docs/release/15.9/).

**New features**
+ Starting in RDS for PostgreSQL versions 17.1, 16.5, 15.9, 14.14, 13.17, and 12.21, some connection slots are reserved for the new `rds_reserved` role, which is granted to Amazon RDS administrative users. The number of reserved connection slots is determined by the `rds.rds_reserved_connections` parameter . You may need to adjust the value of the `max_connections` parameter to account for the number of Amazon RDS reserved connection slots.

  The `rds_reserved` role is a new predefined role created by Amazon RDS. Predefined roles and their privileges can't be changed. You can't drop, rename, or modify privileges for these predefined roles. Attempting to modify a predefined role results in an error.
+ Unblocked `ALTER TEMP TABLE` and `DROP TEMP TABLE` in Blue/Green replication.
+ Added the `rds_tools.pg_ls_multixactdir()` function for `pg_multixact` to monitor the directory disk space usage.

**Updated features**
+ The `oracle_fdw` extension was updated to version 2.7.0.
+ The `orafce` extension was updated to version 4.13.4.
+ The `pg_cron` extension was updated to version 1.6.4.
+ The `pg_hint_plan` extension was updated to version 1.5.2.
+ The `pgvector` extension was updated to version 0.8.0.
+ The `plprofiler` extension was updated to version 4.2.5.
+ The `PostGIS` extension was updated to version 3.4.3.
+ The `rdkit` extension was updated to version 4.6.1.
+ The `rds_tools` extension was updated to version 1.7.
+ The `tds_fdw` extension was updated to version 2.0.4.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 15](postgresql-extensions.md#postgresql-extensions-15x).

### PostgreSQL version 15.8-R3 on Amazon RDS
<a name="postgresql-versions-version158R3"></a>

PostgreSQL version 15.8-R3 is now available on Amazon RDS. This release contains fix for [CVE-2022-4174](https://nvd.nist.gov/vuln/detail/cve-2022-4174) and Rust [CVE RUSTSEC-2024-042](https://rustsec.org/advisories/RUSTSEC-2024-0421.html) for PostgreSQL announced in [PostgreSQL 15.8](https://www.postgresql.org/docs/release/15.8/).

### PostgreSQL version 15.8-R2 on Amazon RDS
<a name="postgresql-versions-version158R2"></a>

PostgreSQL version 15.8-R2 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 15.8 release](https://www.postgresql.org/docs/release/15.8/).

### PostgreSQL version 15.8 on Amazon RDS
<a name="postgresql-versions-version158"></a>

PostgreSQL version 15.8 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 15.8 release](https://www.postgresql.org/docs/release/15.8/).

**New features and enhancements**
+ [Delegated extension role](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/RDS_delegated_ext.html) was added.

This version also includes the following extension updates:
+ The `hypopg` extension was updated to 1.4.1.
+ The `mysql_fdw` extension was updated to 2.9.2.
+ The `orafce` extension was updated to 4.10.3.
+ The `pg_cron` extension was updated to 1.6.3.
+ The `pgTAP` extension was updated to 1.3.3.
+ The `pgvector` extension was updated to 0.7.3.
+ The `rdkit` extension was updated to 4.5.0 (Release 2024\$103\$15).
+ The `wal2json` extension was updated to 2.6.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 15](postgresql-extensions.md#postgresql-extensions-15x).

### PostgreSQL version 15.7-R4 on Amazon RDS
<a name="postgresql-versions-version157R4"></a>

PostgreSQL version 15.7-R4 is now available on Amazon RDS. This release contains fixes for [CVE-2022-4174](https://nvd.nist.gov/vuln/detail/cve-2022-4174) and Rust [CVE RUSTSEC-2024-042](https://rustsec.org/advisories/RUSTSEC-2024-0421.html) for PostgreSQL announced in [PostgreSQL 15.7](https://www.postgresql.org/docs/release/15.7/).

### PostgreSQL version 15.7-R3 on Amazon RDS
<a name="postgresql-versions-version157R3"></a>

PostgreSQL version 15.7-R3 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 15.7 release](https://www.postgresql.org/docs/release/15.7/).

### PostgreSQL version 15.7-R2 on Amazon RDS
<a name="postgresql-versions-version157R2"></a>

PostgreSQL version 15.7-R2 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 15.7 release](https://www.postgresql.org/docs/release/15.7/).

**New features and enhancements**
+ Includes support for four new crates in PL/Rust, including:
  + `regex`
  + `serde`
  + `serde_json`
  + `url`
+ Fixed a security issue in `pg_repack`
+ Fixed a performance issue in `pgvector` for index creation on halfvec data type
+ Fixed a bug in `aws_s3` causing import queries to occasionally get stuck and fail to terminate

### PostgreSQL version 15.7 on Amazon RDS
<a name="postgresql-versions-version157"></a>

PostgreSQL version 15.7 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 15.7 release](https://www.postgresql.org/docs/release/15.7/).

**New features and enhancements**
+ The blue/green deployment switchover won’t be blocked by the `REFRESH MATERIALIZED VIEW` statement.
+ Fixed the permission denial for the `CREATE DATABASE WITH OWNER` statement.
+ Upgraded the `aws_s3` extension to version 1.2 to support the export to S3 with the KMS customer managed key.
+ Fixed a pgvector compatibility issue with some of the previous generations of DB instances, such as m4.

This version also includes the following extension updates:
+ The `aws_s3` extension was updated to 1.2.
+ The `orafce` extension was updated to 4.9.4.
+ The `pg_hint_plan` extension was updated to 1.5.1.
+ The `pg_partman` extension was updated to 5.1.0.
+ The `pgvector` extension was updated to 0.7.0.
+ The `postgis` extension was updated to 3.4.2.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 15](postgresql-extensions.md#postgresql-extensions-15x).

### PostgreSQL version 15.6-R3 on Amazon RDS (This version has reached the end of standard support.)
<a name="postgresql-versions-version156R3"></a>

PostgreSQL version 15.6-R3 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 15.6 release](https://www.postgresql.org/docs/release/15.6/).

**New features and enhancements**
+ Fixed a security issue in `pg_repack`

### PostgreSQL version 15.6-R2 on Amazon RDS (This version has reached the end of standard support.)
<a name="postgresql-versions-version156R2"></a>

PostgreSQL version 15.6-R2 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 15.6 release](https://www.postgresql.org/docs/release/15.6/).

**New features and enhancements**.
+ Fixed a bug allowing the querying of the security invoker views as an unprivileged user.
+ Fixed a bug preventing upgrades to `PostGIS` version 3.4.1.
+ Fixed an error with the `aws_s3` extension when the Region was not provided.

**This version also includes the following extension changes:**
+ The `pg_partman` extension was updated to version 5.0.1.
+ The `pg_tle` extension was updated to version 1.4.0.
+ The `pgactive` extension was updated to version 2.1.3.
+ The `pgtap` extension was updated to version 1.3.2.
+ The `pgvector` extension was updated to version 0.6.2.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 15](postgresql-extensions.md#postgresql-extensions-15x).

### PostgreSQL version 15.6 on Amazon RDS (This version has reached the end of standard support.)
<a name="postgresql-versions-version156"></a>

PostgreSQL version 15.6 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 15.6 release](https://www.postgresql.org/docs/release/15.6/).

**New features and enhancements**
+ Fixed the multisecond latency on the `aws_lambda` calls
+ Fixed a bug preventing the termination of autovacuum

This version includes the following changes:
+ The `orafce` extension was updated to version 4.9.0.
+ The `pgactive` extension was updated to version 2.1.2.
+ The `pgvector` extension was updated to 0.6.0.
+ The `plv8` extension was updated to 3.1.10.
+ The `PostGIS` extension was updated to 3.4.1.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 15](postgresql-extensions.md#postgresql-extensions-15x).

### PostgreSQL version 15.5-R2 on Amazon RDS (This version has reached the end of standard support.)
<a name="postgresql-versions-version155R2"></a>

PostgreSQL version 15.5-R2 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 15.5 release](https://www.postgresql.org/docs/release/15.5/).

**New features and enhancements**
+ Fixed a crash in `CatalogCacheComputeHashValue` with `dblink_connect` due to a `Null` or `invalid` connection. 
+ Backported run\$1as\$1owner to RPG 15: 
  +  Backported a security fix for the logical replication apply worker that allows regular table owners to obtain privilege escalation to the subscription owner (an rds\$1superuser). The logical apply worker mitigates the risk by temporarily switching the role from the subscription owner to the table owner during logical apply.

     In the cases of potential security breaches, the fix will break your existing logical replication if any table in the subscription is owned by a regular user, and there are security-restricted operations attached to the table via triggers or default expressions. We recommend that you carefully examine the operations attached to the table if you notice the logical replication is broken after the upgrade. If all of the operations are as expected and you wish to revert the behavior of the logical replication so your application can continue, you can do so by setting the new parameter `rds.run_logical_replication_as_subscription_owner` to true. Be aware that by doing so your logical replication will be vulnerable to the aforementioned security risk again. 
+ Added `rds.run_logical_replication_as_subscription_owner` to the Amazon RDS parameter group. 
+  Supported the AWS SDK version of the `aws_s3` extension. 
+ Fixed the overflow in the `pg_transport` extension. 
+ Removed the unsupported shared libraries from the engine binary. 

This version includes the following changes:
+ The `plrust` extension was updated to version 1.2.7.
+ The `plv8` extension was updated to version 3.1.9.

### PostgreSQL version 15.5 on Amazon RDS (This version has reached the end of standard support.)
<a name="postgresql-versions-version155"></a>

PostgreSQL version 15.5 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 15.5 release](https://www.postgresql.org/docs/release/15.5/).

**New features and enhancements**
+ Fixed a bug where `pg_database_size()` with an invalid OID causes a crash.
+ Added support for the `rds.enable_pgactive` parameter in rdsutils to avoid the warning message.
+ Exposed RDKit guc param `rdkit.morgan_fp_size`.
+ Fixed the bug where setting `TABLESPACE` with `DEFAULT` option in `CREATE` or `ALTER DATABASE` fails.

This version includes the following changes:
+ The `h3-pg` extension was updated to version 4.1.3.
+ The `hll` extension was updated to version 2.18.
+ The `oracle_fdw` extension was updated to version 2.6.0.
+ The `orafce` extension was updated to version 4.6.1.
+ The `pg_cron` extension was updated to version 1.6.1.
+ The `pg_partman` extension was updated to version 5.0.0.
+ The `pg_proctab` extension was updated to version 0.0.10.
+ The `pgactive` extension was updated to version 2.1.1.
+ The `pgtap` extension was updated to version 1.3.1.
+ The `plprofiler` extension was updated to version 4.2.4.
+ The `plrust` extension was updated to version 1.2.6.
+ The `PostGIS` extension was updated to version 3.4.0.
+ The `rdkit` extension was updated to version 4.4.0.

### PostgreSQL version 15.4-R3 on Amazon RDS (This version has reached the end of standard support.)
<a name="postgresql-versions-version154R3"></a>

PostgreSQL version 15.4-R3 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 15.4 release](https://www.postgresql.org/docs/release/15.4/).

This version includes the following changes:
+ Bug and security fixes for pgactive.
+ The `pgvector` extension was updated to version 0.5.1.

### PostgreSQL version 15.4-R2 on Amazon RDS (This version has reached the end of standard support.)
<a name="postgresql-versions-version154R2"></a>

PostgreSQL version 15.4-R2 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 15.4 release](https://www.postgresql.org/docs/release/15.4/).

**New features and enhancements**
+ Fixed a bug preventing database owners without the `rds_superuser` role from being able to create tables in the public schema.
+ The `pgactive` extension was added.
+ A new `rds.cte_materialize_mode` parameter was introduced which controls the materialization behavior of the query of a `WITH` clause, also known as a Common Table Expression. See [`WITH` Queries](https://www.postgresql.org/docs/current/queries-with.html) for more information. The parameter values include the following:
  + *default*: The `WITH` clause will be treated using the engine's default behavior.
  + *always*: The full output of the query in the `WITH` clause will be materialized and the output reused in the outer query.
  + *never*: The query in the `WITH` clause will be inlined with the outer query if possible. This parameter will also override the `MATERIALIZED` and `NOT MATERIALIZED` keywords supplied to the `WITH` clause.

This version also includes the following changes:
+ The `mysql_fdw` extension was updated to version 2.9.1.
+ The `pgvector` extension was updated to version 0.5.0.
+ The `plrust` extension was updated to version 1.2.5.
+ The `plv8` extension was updated to version 3.1.8.
+ The `rdkit` extension was updated to version 4.3.0.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 15](postgresql-extensions.md#postgresql-extensions-15x).

### PostgreSQL version 15.4 on Amazon RDS (This version has reached the end of standard support.)
<a name="postgresql-versions-version154"></a>

PostgreSQL version 15.4 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 15.4 release](https://www.postgresql.org/docs/release/15.4/).

**New features and enhancements**
+ Fixed a bug preventing users with the `rds_superuser` role from creating schemas in databases owned by other users.
+ Users with the `rds_superuser` role can now access toast tables in the `pg_toast schema` that are owned by other users.
+ Fixed an issue where `ALTER TABLE` took a ShareLock and may cause deadlocks.

This version also includes the following changes:
+ The `hypopg` extension was updated to version 1.4.0.
+ The `orafce` extension was updated to version 4.3.0.
+ The `pg_tle` extension was updated to version 1.1.1.
+ The `pglogical` extension was updated to version 2.4.3.
+ The `plrust` extension was updated to version 1.2.3.
+ The `PostGIS` extension was updated to version 3.3.3.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 15](postgresql-extensions.md#postgresql-extensions-15x).

### PostgreSQL version 15.3-R2 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version153R2"></a>

PostgreSQL version 15.3-R2 is now available on Amazon RDS. This release contains logical replication for Multi-AZ DB clusters, improved `plrust` performance, and an update to `pgvector`.

**New features and enhancements**
+ Improves the performance of `plrust`
+ Fixed a Patroni 2.1.7 restart issue and instead enables replication slot from the disk

This version also includes the following changes:
+ The `pgvector` extension was updated to version 0.4.4.
+ The `plrust` extension was updated to version 1.1.3.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 15](postgresql-extensions.md#postgresql-extensions-15x).

### PostgreSQL version 15.3 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version153"></a>

PostgreSQL version 15.3 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 15.3 release](https://www.postgresql.org/docs/release/15.3/).

**New features and enhancements**
+ Includes changes to allow `rds-superuser` to run the `pg_stat_reset_slru` function
+ Fixed a security issue involving `rds_sec_override` which wasn't reset after the intended usage, allowing unauthorized access to restricted tables
+ Added the `hypopg` extension at version 1.3.1
+ You can use logical\$1seed\$1lsn to determine the LSN at which a snapshot is taken in order to establish logical replication connection between the source and the restored target database. You can then use logical replication to continuously stream the newer data recorded after the LSN and synchronize the changes from publisher to subscriber. Specifically, it allows the customer to create a logical slot on a source RDS database, take a snapshot, restore the snapshot to a new RDS instance (target), and use the value of logical\$1seed\$1lsn() from the target instance to advance the logical slot on the source instance in order to subscribe the target to the source.

This version also includes the following changes:
+ `compat-collation-for-glibc` was updated to version 1.8.
+ `libgeos` was updated to version 3.11.2.
+ The `pg_cron` extension was updated to version 1.5.2.
+ The `pg_partman` extension was updated to version 4.7.3.
+ The `pg_tle` extension was updated to version 1.0.4.
+ The `plrust` extension was updated to version 1.1.1.
+ The `plv8` extension was updated to version 3.1.6.
+ The `PostGIS` extension was updated to version 3.3.2.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 15](postgresql-extensions.md#postgresql-extensions-15x).

### PostgreSQL version 15.2-R2 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version152R2"></a>

PostgreSQL version 15.2-R2 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 15.2 release](https://www.postgresql.org/docs/release/15.2/).

**New extensions**
+ The `pgvector` extension was added.
+ The `plrust` extension was added.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 15](postgresql-extensions.md#postgresql-extensions-15x).

### PostgreSQL version 15.2 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version152"></a>

PostgreSQL version 15.2 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 15.2 release](https://www.postgresql.org/docs/release/15.2/).

**New features and enhancements**
+ The archive library `rds_archive` is now used for archiving WAL files instead of `archive_command`.
+ The `lz4` and `zstd` WAL compression methods are now supported.
+ By default, the `default_toast_compression` DB instance parameter is set to `lz4`.

**New extensions**
+ The `pg_walinspect` extension version 1.0 was added.

This version also includes the following changes:
+ The `btree_gist` extension was updated to version 1.7.
+ The `hll` extension was updated to version 2.17.
+ The `mysql_fdw` extension was updated to version 2.9.0.
+ The `pageinspect` extension was updated to version 1.11.
+ The `pg_hint_plan` extension was updated to version 1.5.0.
+ The `pg_repack` extension was updated to version 1.4.8.
+ The `pg_stat_statements` extension was updated to version 1.10.
+ The `pgaudit` extension was updated to version 1.7.0.
+ The `pglogical` extension was updated to version 2.4.2.
+ The `pgrouting` extension was updated to version 3.4.1.
+ The `pllcoffee` extension was updated to version 3.1.4.
+ The `plls` extensionwas updated to version 3.1.4.
+ The `plprofiler` extension was updated to version 4.2.1.
+ The `plv8` extension was updated to version 3.1.4.
+ The `PostGIS` extension was updated to version 3.3.2.
+ The `tds_fdw` extension was updated to version 2.0.3.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 15](postgresql-extensions.md#postgresql-extensions-15x).

## PostgreSQL 14 versions
<a name="postgresql-versions-version14"></a>

**Topics**
+ [PostgreSQL version 14.22 on Amazon RDS](#postgresql-versions-version1422)
+ [PostgreSQL version 14.21 on Amazon RDS](#postgresql-versions-version1421)
+ [PostgreSQL version 14.20-R2 on Amazon RDS](#postgresql-versions-version1420R2)
+ [PostgreSQL version 14.20 on Amazon RDS](#postgresql-versions-version1420)
+ [PostgreSQL version 14.19-R2 on Amazon RDS](#postgresql-versions-version1419R2)
+ [PostgreSQL version 14.19 on Amazon RDS](#postgresql-versions-version1419)
+ [PostgreSQL version 14.18-R2 on Amazon RDS](#postgresql-versions-version1418)
+ [PostgreSQL version 14.18 on Amazon RDS](#postgresql-versions-version1418R1)
+ [PostgreSQL version 14.17-R2 on Amazon RDS](#postgresql-versions-version1417R2)
+ [PostgreSQL version 14.17 on Amazon RDS](#postgresql-versions-version1417)
+ [PostgreSQL version 14.16 on Amazon RDS](#postgresql-versions-version1416R1)
+ [PostgreSQL version 14.15-R3 on Amazon RDS](#postgresql-versions-version1415R3)
+ [PostgreSQL version 14.15-R2 on Amazon RDS](#postgresql-versions-version1415R2)
+ [PostgreSQL version 14.15 on Amazon RDS](#postgresql-versions-version1415)
+ [PostgreSQL version 14.14 on Amazon RDS](#postgresql-versions-version1414)
+ [PostgreSQL version 14.13-R3 on Amazon RDS](#postgresql-versions-version1413R3)
+ [PostgreSQL version 14.13-R2 on Amazon RDS](#postgresql-versions-version1413R2)
+ [PostgreSQL version 14.13 on Amazon RDS](#postgresql-versions-version1413)
+ [PostgreSQL version 14.12-R4 on Amazon RDS](#postgresql-versions-version1412R4)
+ [PostgreSQL version 14.12-R3 on Amazon RDS](#postgresql-versions-version1412R3)
+ [PostgreSQL version 14.12-R2 on Amazon RDS](#postgresql-versions-version1412-R2)
+ [PostgreSQL version 14.12 on Amazon RDS](#postgresql-versions-version1412)
+ [PostgreSQL version 14.11-R4 on Amazon RDS](#postgresql-versions-version1411R4)
+ [PostgreSQL version 14.11-R3 on Amazon RDS](#postgresql-versions-version1411R3)
+ [PostgreSQL version 14.11-R2 on Amazon RDS](#postgresql-versions-version1411R2)
+ [PostgreSQL version 14.11 on Amazon RDS](#postgresql-versions-version1411)
+ [PostgreSQL version 14.10-R2 on Amazon RDS](#postgresql-versions-version1410R2)
+ [PostgreSQL version 14.10 on Amazon RDS](#postgresql-versions-version1410)
+ [PostgreSQL version 14.9-R2 on Amazon RDS](#postgresql-versions-version149R2)
+ [PostgreSQL version 14.9 on Amazon RDS](#postgresql-versions-version149)
+ [PostgreSQL version 14.8-R2 on Amazon RDS (Deprecated)](#postgresql-versions-version148R2)
+ [PostgreSQL version 14.8 on Amazon RDS (Deprecated)](#postgresql-versions-version148)
+ [PostgreSQL version 14.7 on Amazon RDS (Deprecated)](#postgresql-versions-version147)
+ [PostgreSQL version 14.6 on Amazon RDS (Deprecated)](#postgresql-versions-version146)
+ [PostgreSQL version 14.5 on Amazon RDS (Deprecated)](#postgresql-versions-version145)
+ [PostgreSQL version 14.4 on Amazon RDS (Deprecated)](#postgresql-versions-version144)
+ [PostgreSQL version 14.3 on Amazon RDS (Deprecated)](#postgresql-versions-version143)
+ [PostgreSQL version 14.2 on Amazon RDS (Deprecated)](#postgresql-versions-version142)
+ [PostgreSQL version 14.1 on Amazon RDS (Deprecated)](#postgresql-versions-version141)

### PostgreSQL version 14.22 on Amazon RDS
<a name="postgresql-versions-version1422"></a>

PostgreSQL version 14.22 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 14.22 release](https://www.postgresql.org/docs/release/14.22/).

### PostgreSQL version 14.21 on Amazon RDS
<a name="postgresql-versions-version1421"></a>

PostgreSQL version 14.21 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 14.21 release](https://www.postgresql.org/docs/release/14.21/).

**General enhancements**
+ Improved stability and reliability for database operations.
+ Enhanced data collection capabilities.

This version also includes the following extension changes:
+ The `pgactive` extension was updated to version 2.1.7.
+ The `pglogical` extension was updated to version 2.4.6.
+ The `pg_hint_plan` extension was updated to version 1.4.4.
+ The `orafce` extension was updated to version 4.16.3.
+ The `pg_bigm` extension was updated to version 1.2-20250903.
+ The `pg_cron` extension was updated to version 1.6.7.
+ The `hypopg` extension was updated to version 1.4.2.
+ The `tds_fdw` extension was updated to version 2.0.5.
+ The `pg_repack` extension was updated to version 1.5.3.
+ The `pgvector` extension was updated to version 0.8.1.
+ The `mysql_fdw` extension was updated to version 2.9.3.
+ The `oracle_fdw` extension was updated to version 2.8.0.

### PostgreSQL version 14.20-R2 on Amazon RDS
<a name="postgresql-versions-version1420R2"></a>

PostgreSQL version 14.20-R2 is now available on Amazon RDS. 

This version also includes the following changes:
+ Fixed an issue on the plv8 extension regarding CREATE EXTENSION failure on older version.

### PostgreSQL version 14.20 on Amazon RDS
<a name="postgresql-versions-version1420"></a>

PostgreSQL version 14.20 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 14.20 release](https://www.postgresql.org/docs/release/14.20/).

**General enhancements**

This version also includes the following extension changes:
+ The `pg_tle` extension was updated to version 1.5.2.
+ The `h3-pg` extension was updated to version 4.2.3.

### PostgreSQL version 14.19-R2 on Amazon RDS
<a name="postgresql-versions-version1419R2"></a>

PostgreSQL version 14.19-R2 is now available on Amazon RDS. 

This version also includes the following extension changes:
+ The `pgactive` extension was updated to version 2.1.6.

### PostgreSQL version 14.19 on Amazon RDS
<a name="postgresql-versions-version1419"></a>

PostgreSQL version 14.19 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 14.19 release](https://www.postgresql.org/docs/release/14.19/).

**General enhancements**
+ Grant rds\$1superuser access to pg\$1wal\$1pause / pg\$1wal\$1replay functions to perform logical upgrades and verification/validation.
+ Updated V8 engine to version 11.5.150.2 for the `plv8` extension 3.1.10.

This version also includes the following extension changes:
+ The `pg_repack` extension was updated to version 1.5.2.
+ The `oracle_fdw` extension was updated to version 2.8.0.
+ The `pgactive` extension was updated to version 2.1.5.

### PostgreSQL version 14.18-R2 on Amazon RDS
<a name="postgresql-versions-version1418"></a>

PostgreSQL version 14.18-R2 is now available on Amazon RDS. 

**General enhancements**
+ Updated V8 engine to version 11.5.150.2 for the `plv8` extension 3.1.10.

This version also includes the following extension changes:
+ The `pgactive` extension was updated to version 2.1.6.

### PostgreSQL version 14.18 on Amazon RDS
<a name="postgresql-versions-version1418R1"></a>

PostgreSQL version 14.18 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 14.18 release](https://www.postgresql.org/docs/release/14.18/).

**General enhancements**
+ Fixed for the `address_standardizer_data_us` extension issue regarding ALTER EXTENSION UPDATE failure.
+ Changed the Oracle client library version on x86 to 19.26.0.0.0.
+ Fixed the `pgactive` extension unable to upgrade issue due to incorrect extension upgrade scripts which causes replication to break after engine upgrade.

This version also includes the following extension changes:
+ The `pg_repack` extension was updated to version 1.5.1.
+ The `pglogical` extension was updated to version 2.4.5.
+ The `PgAudit` extension was updated to version 1.6.3.
+ The `RDKit` extension was updated to version 2024\$109\$16.

### PostgreSQL version 14.17-R2 on Amazon RDS
<a name="postgresql-versions-version1417R2"></a>

PostgreSQL version 14.17-R2 is now available on Amazon RDS. 

**Fixes and improvements**
+ Updated V8 engine to version 11.5.150.2 for the `plv8` extension 3.1.10.

This version also includes the following extension changes:
+ The `pgactive` extension was updated to version 2.1.6.

### PostgreSQL version 14.17 on Amazon RDS
<a name="postgresql-versions-version1417"></a>

PostgreSQL version 14.17 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 14.17 release](https://www.postgresql.org/docs/release/14.17/).

### PostgreSQL version 14.16 on Amazon RDS
<a name="postgresql-versions-version1416R1"></a>

PostgreSQL version 14.16 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 14.16 release](https://www.postgresql.org/docs/release/14.16/).

**New features and enhancements**.
+ In Blue/Green deployments, creating or modifying temporary objects is no longer classified as restricted DDL.
+ Resolved an issue where DVB returned duplicate rows during slow vacuum analysis.
+ Resolved CVE RUSTSEC-2024-0421 by upgrading URL Rust crate to 2.5.4. For more information, see [RUSTSEC-2024-0421](https://rustsec.org/advisories/RUSTSEC-2024-0421.html).
+ Applied Promise.any error allocation fix for V8 9.7.37, PLV8 3.1.10.

**This version also includes the following extension changes:**.
+ The `rds_tools` extension was updated to 1.9.
+ The `orafce` extension was updated to 4.14.0.
+ The `pg_cron` extension was updated to 1.6.5.
+ The `rdkit` extension was updated to 2024\$109\$13.
+ The `pg_active` extension was updated to 2.1.4.
+ The `pg_partman` extension was updated to 5.2.4.
+ The `prefix` extension was updated to 1.2.10.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 14](postgresql-extensions.md#postgresql-extensions-14x).

### PostgreSQL version 14.15-R3 on Amazon RDS
<a name="postgresql-versions-version1415R3"></a>

PostgreSQL version 14.15-R3 is now available on Amazon RDS. 

**General enhancements**
+ Updated V8 engine to version 11.5.150.2 for the `plv8` extension 3.1.10.

### PostgreSQL version 14.15-R2 on Amazon RDS
<a name="postgresql-versions-version1415R2"></a>

PostgreSQL version 14.15-R2 is now available on Amazon RDS. This release contains fix for PLV8 [CVE-2022-4174](https://nvd.nist.gov/vuln/detail/cve-2022-4174) and Rust [CVE RUSTSEC-2024-042](https://rustsec.org/advisories/RUSTSEC-2024-0421.html) for PostgreSQL announced in [PostgreSQL 14.15](https://www.postgresql.org/docs/release/14.15/).

### PostgreSQL version 14.15 on Amazon RDS
<a name="postgresql-versions-version1415"></a>

PostgreSQL version 14.15 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 14.15 release](https://www.postgresql.org/docs/release/14.15/).

### PostgreSQL version 14.14 on Amazon RDS
<a name="postgresql-versions-version1414"></a>

PostgreSQL version 14.14 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in [PostgreSQL 14.14](https://www.postgresql.org/docs/release/14.14/).

**New features**
+ Starting in RDS for PostgreSQL versions 17.1, 16.5, 15.9, 14.14, 13.17, and 12.21, some connection slots are reserved for the new `rds_reserved` role, which is granted to Amazon RDS administrative users. The number of reserved connection slots is determined by the `rds.rds_reserved_connections` parameter . You may need to adjust the value of the `max_connections` parameter to account for the number of Amazon RDS reserved connection slots.

  The `rds_reserved` role is a new predefined role created by Amazon RDS. Predefined roles and their privileges can't be changed. You can't drop, rename, or modify privileges for these predefined roles. Attempting to modify a predefined role results in an error.
+ Unblocked `ALTER TEMP TABLE` and `DROP TEMP TABLE` in Blue/Green replication.
+ Added the `rds_tools.pg_ls_multixactdir()` function for `pg_multixact` to monitor the directory disk space usage.
+ Fixed potential incompatibilities in the `plv8` extension occurring after database upgrades.

**Updated features**
+ The `oracle_fdw` extension was updated to version 2.7.0.
+ The `orafce` extension was updated to version 4.13.4.
+ The `pg_cron` extension was updated to version 1.6.4.
+ The `pg_hint_plan` extension was updated to version 1.4.3
+ The `pgvector` extension was updated to version 0.8.0.
+ The `plprofiler` extension was updated to version 4.2.5.
+ The `PostGIS` extension was updated to version 3.4.3.
+ The `rdkit` extension was updated to version 4.6.1.
+ The `rds_tools` extension was updated to version 1.7.
+ The `tds_fdw` extension was updated to version 2.0.4.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 14](postgresql-extensions.md#postgresql-extensions-14x).

### PostgreSQL version 14.13-R3 on Amazon RDS
<a name="postgresql-versions-version1413R3"></a>

PostgreSQL version 14.13-R3 is now available on Amazon RDS. This release contains fixes for [CVE-2022-4174](https://nvd.nist.gov/vuln/detail/cve-2022-4174) and Rust [CVE RUSTSEC-2024-042](https://rustsec.org/advisories/RUSTSEC-2024-0421.html) for PostgreSQL announced in [PostgreSQL 14.13](https://www.postgresql.org/docs/release/14.13/).

### PostgreSQL version 14.13-R2 on Amazon RDS
<a name="postgresql-versions-version1413R2"></a>

PostgreSQL version 14.13-R2 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 14.13 release](https://www.postgresql.org/docs/release/14.13/).

**New features and enhancements**
+ Fixed potential incompatibilities in the `plv8` extension occurring after database upgrades.

### PostgreSQL version 14.13 on Amazon RDS
<a name="postgresql-versions-version1413"></a>

PostgreSQL version 14.13 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 14.13 release](https://www.postgresql.org/docs/release/14.13/).

**New features and enhancements**
+ [Delegated extension role](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/RDS_delegated_ext.html) was added.

This version also includes the following extension updates:
+ The `hypopg` extension was updated to 1.4.1.
+ The `mysql_fdw` extension was updated to 2.9.2.
+ The `orafce` extension was updated to 4.10.3.
+ The `pg_cron` extension was updated to 1.6.3.
+ The `pgTAP` extension was updated to 1.3.3.
+ The `pgvector` extension was updated to 0.7.3.
+ The `rdkit` extension was updated to 4.5.0 (Release 2024\$103\$15).
+ The `wal2json` extension was updated to 2.6.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 14](postgresql-extensions.md#postgresql-extensions-14x).

### PostgreSQL version 14.12-R4 on Amazon RDS
<a name="postgresql-versions-version1412R4"></a>

PostgreSQL version 14.12-R4 is now available on Amazon RDS. This release contains fixes for [CVE-2022-4174](https://nvd.nist.gov/vuln/detail/cve-2022-4174) and Rust [CVE RUSTSEC-2024-042](https://rustsec.org/advisories/RUSTSEC-2024-0421.html) for PostgreSQL announced in [PostgreSQL 14.12](https://www.postgresql.org/docs/release/14.12/).

### PostgreSQL version 14.12-R3 on Amazon RDS
<a name="postgresql-versions-version1412R3"></a>

PostgreSQL version 14.12-R3 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 14.12 release](https://www.postgresql.org/docs/release/14.12/).

**New features and enhancements**
+ Fixed potential incompatibilities in the `plv8` extension occurring after database upgrades.

### PostgreSQL version 14.12-R2 on Amazon RDS
<a name="postgresql-versions-version1412-R2"></a>

PostgreSQL version 14.12-R2 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 14.12 release](https://www.postgresql.org/docs/release/14.12/).

**New features and enhancements**
+ Includes support for four new crates in PL/Rust, including:
  + `regex`
  + `serde`
  + `serde_json`
  + `url`
+ Fixed a security exploit issue in `plv8`
+ Fixed a security issue in `pg_repack`
+ Fixed a performance issue in `pgvector` for index creation on halfvec data type
+ Fixed a bug in `aws_s3` causing import queries to occasionally get stuck and fail to terminate

**This version also includes the following extension changes:**.
+ The `plv8` extension was updated to 3.1.10.

### PostgreSQL version 14.12 on Amazon RDS
<a name="postgresql-versions-version1412"></a>

PostgreSQL version 14.12 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 14.12 release](https://www.postgresql.org/docs/release/14.12/).

**New features and enhancements**
+ The blue/green deployment switchover won’t be blocked by the `REFRESH MATERIALIZED VIEW` statement.
+ Fixed the permission denial for the `CREATE DATABASE WITH OWNER` statement.
+ Upgraded the `aws_s3` extension to version 1.2 to support the export to S3 with the KMS customer managed key.
+ Fixed a pgvector compatibility issue with some of the previous generations of DB instances, such as m4.

This version also includes the following extension updates:
+ The `aws_s3` extension was updated to 1.2.
+ The `orafce` extension was updated to 4.9.4.
+ The `pg_hint_plan` extension was updated to 1.4.2.
+ The `pg_partman` extension was updated to 5.1.0.
+ The `pgvector` extension was updated to 0.7.0.
+ The `postgis` extension was updated to 3.4.2.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 14](postgresql-extensions.md#postgresql-extensions-14x).

### PostgreSQL version 14.11-R4 on Amazon RDS
<a name="postgresql-versions-version1411R4"></a>

PostgreSQL version 14.11-R4 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 14.11 release](https://www.postgresql.org/docs/release/14.11/).

**New features and enhancements**
+ Fixed potential incompatibilities in the `plv8` extension occurring after database upgrades.

### PostgreSQL version 14.11-R3 on Amazon RDS
<a name="postgresql-versions-version1411R3"></a>

PostgreSQL version 14.11-R3 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 14.11 release](https://www.postgresql.org/docs/release/14.11/).

**New features and enhancements**
+ Fixed a security exploit issue in `plv8`
+ Fixed a security issue in `pg_repack`

**This version also includes the following extension change:**
+ The `plv8` extension was updated to 3.1.10.

### PostgreSQL version 14.11-R2 on Amazon RDS
<a name="postgresql-versions-version1411R2"></a>

PostgreSQL version 14.11-R2 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 14.11 release](https://www.postgresql.org/docs/release/14.11/).

**New features and enhancements**.
+ Fixed a bug preventing upgrades to `PostGIS` version 3.4.1.
+ Fixed an error with the `aws_s3` extension when the Region was not provided.

**This version also includes the following extension changes:**
+ The `pg_partman` extension was updated to version 5.0.1.
+ The `pg_tle` extension was updated to version 1.4.0.
+ The `pgactive` extension was updated to version 2.1.3.
+ The `pgtap` extension was updated to version 1.3.2.
+ The `pgvector` extension was updated to version 0.6.2.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 14](postgresql-extensions.md#postgresql-extensions-14x).

### PostgreSQL version 14.11 on Amazon RDS
<a name="postgresql-versions-version1411"></a>

PostgreSQL version 14.11 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 14.11 release.](https://www.postgresql.org/docs/release/14.11/).

**New features and enhancements**
+ Fixed the multisecond latency on the `aws_lambda` calls
+ Fixed a bug preventing the termination of autovacuum

This version includes the following changes:
+ The `orafce` extension was updated to version 4.9.0.
+ The `pg_cron` extension was updated to version 1.6.2.
+ The `pgactive` extension was updated to version 2.1.2.
+ The `pgvector` extension was updated to 0.6.0.
+ The `PostGIS` extension was updated to 3.4.1.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 14](postgresql-extensions.md#postgresql-extensions-14x).

### PostgreSQL version 14.10-R2 on Amazon RDS
<a name="postgresql-versions-version1410R2"></a>

PostgreSQL version 14.10-R2 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 14.10 release](https://www.postgresql.org/docs/release/14.10/).

**New features and enhancements**
+ Fixed a crash in `CatalogCacheComputeHashValue` with `dblink_connect` due to a `Null` or `invalid` connection. 
+ Backported run\$1as\$1owner to RPG 14 
  +  Backported a security fix for the logical replication apply worker that allows regular table owners to obtain privilege escalation to the subscription owner (an rds\$1superuser). The logical apply worker mitigates the risk by temporarily switching the role from the subscription owner to the table owner during logical apply.

     In the cases of potential security breaches, the fix will break your existing logical replication if any table in the subscription is owned by a regular user, and there are security-restricted operations attached to the table via triggers or default expressions. We recommend that you carefully examine the operations attached to the table if you notice the logical replication is broken after the upgrade. If all of the operations are as expected and you wish to revert the behavior of the logical replication so your application can continue, you can do so by setting the new parameter `rds.run_logical_replication_as_subscription_owner` to true. Be aware that by doing so your logical replication will be vulnerable to the aforementioned security risk again. 
+ Added `rds.run_logical_replication_as_subscription_owner` to the Amazon RDS parameter group. 
+  Supported the AWS SDK version of the `aws_s3` extension. 
+ Fixed the overflow in the `pg_transport` extension. 
+ Removed the unsupported shared libraries from the engine binary. 

This version includes the following change:
+ The `plrust` extension was updated to version 1.2.7.

### PostgreSQL version 14.10 on Amazon RDS
<a name="postgresql-versions-version1410"></a>

PostgreSQL version 14.10 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 14.10 release](https://www.postgresql.org/docs/release/14.10/).

**New features and enhancements**
+ Fixed a bug where `pg_database_size()` with an invalid OID causes a crash.
+ Added support for the `rds.enable_pgactive` parameter in rdsutils to avoid the warning message.
+ Exposed RDKit guc param `rdkit.morgan_fp_size`.
+ Fixed the bug where setting `TABLESPACE` with `DEFAULT` option in `CREATE` or `ALTER DATABASE` fails.
+ Added the `pgactive` extension.

This version includes the following changes:
+ The `h3-pg` extension was updated to version 4.1.3.
+ The `hll` extension was updated to version 2.18
+ The `oracle_fdw` extension was updated to version 2.6.0.
+ The `orafce` extension was updated to version 4.6.1.
+ The `pg_cron` extension was updated to version 1.6.1.
+ The `pg_partman` extension was updated to version 5.0.0.
+ The `pg_proctab` extension was updated to version 0.0.10.
+ The `pgtap` extension was updated to version 1.3.1.
+ The `pgvector` extension was updated to version 0.5.1.
+ The `plprofiler` extension was updated to version 4.2.4.
+ The `plrust` extension was updated to version 1.2.6.
+ The `PostGIS` extension was updated to version 3.4.0.
+ The `rdkit` extension was updated to version 4.4.0.

### PostgreSQL version 14.9-R2 on Amazon RDS
<a name="postgresql-versions-version149R2"></a>

PostgreSQL version 14.9-R2 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 14.9 release](https://www.postgresql.org/docs/release/14.9/).

**New features and enhancements**
+ A new `rds.cte_materialize_mode` parameter was introduced which controls the materialization behavior of the query of a `WITH` clause, also known as a Common Table Expression. See [`WITH` Queries](https://www.postgresql.org/docs/current/queries-with.html) for more information. The parameter values include the following:
  + *default*: The `WITH` clause will be treated using the engine's default behavior.
  + *always*: The full output of the query in the `WITH` clause will be materialized and the output reused in the outer query.
  + *never*: The query in the `WITH` clause will be inlined with the outer query if possible. This parameter will also override the `MATERIALIZED` and `NOT MATERIALIZED` keywords supplied to the `WITH` clause.

This version also includes the following changes:
+ The `pgvector` extension was updated to version 0.5.0.
+ The `plrust` extension was updated to version 1.2.5.
+ The `rdkit` extension was updated to version 4.3.0.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 14](postgresql-extensions.md#postgresql-extensions-14x).

### PostgreSQL version 14.9 on Amazon RDS
<a name="postgresql-versions-version149"></a>

PostgreSQL version 14.9 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 14.9 release](https://www.postgresql.org/docs/release/14.9/).

**New features and enhancements**
+ A bug was fixed preventing users with the `rds_superuser` role from creating schemas in databases owned by other users.
+ Users with the `rds_superuser` role can now access toast tables in the `pg_toast schema` that are owned by other users.
+ Fixed an issue where `ALTER TABLE` took a ShareLock and may cause deadlocks.

This version also includes the following changes:
+ The `hypopg` extension was updated to version 1.4.0.
+ The `orafce` extension was updated to version 4.3.0.
+ The `pg_tle` extension was updated to version 1.1.1.
+ The `pglogical` extension was updated to version 2.4.3.
+ The `plrust` extension was added at version 1.2.3.
+ The `PostGIS` extension was updated to version 3.3.3

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 14](postgresql-extensions.md#postgresql-extensions-14x).

### PostgreSQL version 14.8-R2 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version148R2"></a>

PostgreSQL version 14.8-R2 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 14.8 release](https://www.postgresql.org/docs/release/14.8/).

**New features and enhancements**
+ Fixed a Patroni 2.1.7 restart issue and instead enables replication slot from the disk

This version also includes the following change:
+ The `pgvector` extension was updated to version 0.4.4.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 14](postgresql-extensions.md#postgresql-extensions-14x).

### PostgreSQL version 14.8 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version148"></a>

PostgreSQL version 14.8 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 14.8 release](https://www.postgresql.org/docs/release/14.8/).

**New features and enhancements**
+ Includes changes to allow rds-superuser to run the `pg_stat_reset_slru` function
+ Fixed a security issue involving `rds_sec_override` which wasn't reset after the intended usage, allowing unauthorized access to restricted tables 
+ Added extension `hypopg` version 1.3.1
+ Added extension `pgvector` version 0.4.1
+ You can use logical\$1seed\$1lsn to determine the LSN at which a snapshot is taken in order to establish logical replication connection between the source and the restored target database. You can then use logical replication to continuously stream the newer data recorded after the LSN and synchronize the changes from publisher to subscriber. Specifically, it allows the customer to create a logical slot on a source RDS database, take a snapshot, restore the snapshot to a new RDS instance (target), and use the value of logical\$1seed\$1lsn() from the target instance to advance the logical slot on the source instance in order to subscribe the target to the source.

This version also includes the following changes:
+ `compat-collation-for-glibc` was updated to version 1.8.
+ The `pg_cron` extension was updated to version 1.5.2.
+ The `pg_tle` extension was updated to version 1.0.4.
+ The `pglogical` extension was updated to version 2.4.2.
+ The `PostGIS` extension was updated to version 3.3.2.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 14](postgresql-extensions.md#postgresql-extensions-14x).

### PostgreSQL version 14.7 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version147"></a>

PostgreSQL version 14.7 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 14.7 release](https://www.postgresql.org/docs/release/14.7/).

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 14](postgresql-extensions.md#postgresql-extensions-14x).

### PostgreSQL version 14.6 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version146"></a>

PostgreSQL version 14.6 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 14.6 release](https://www.postgresql.org/docs/release/14.6/).

**New features and enhancements**
+ PostgreSQL version 14.6 added support for the `tcn` ("triggered change notification") extension which generates notification events on table changes via a trigger function called `triggered_change_notification`. The tcn extension is useful for applications using drivers which support asynchronous notification. This makes it possible to notify all clients if the contents of a table have been changed, enabling them to take appropriate action in near-real time, such as updating a table cache or information display.

  However, such functionality should only be used with care as it makes all data changes on the table available to all clients (including unprivileged users) through the notification events when they listen on the tcn channel. It is the user’s responsibility to avoid using tcn trigger on a table with sensitive data to avoid information leakage. 

This version includes the following changes:
+ The `seg` extension version 1.4 was added.
+ The `tcn` extension version 1.0 was added.
+ The `orafce` extension was updated to version 3.24.
+ The `pgaudit` extension was updated to version 1.6.2.
+ The `pgtap` extension was updated to version 1.2.0.
+ The `rdkit` extension was updated to version 4.2.0.
+ The PostGIS dependency GDAL was updated to version 3.4.3.
+ The `wal2json` extension was updated to version 2.5.
+ The `aws_s3` extension was updated to version 1.1.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 14](postgresql-extensions.md#postgresql-extensions-14x).

### PostgreSQL version 14.5 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version145"></a>

PostgreSQL version 14.5 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 14.5 release](https://www.postgresql.org/docs/release/14.5/).

This version includes the following changes:
+ The `PostGIS` extension was updated to version 3.1.7.
+ The `pg_partman` extension was updated to version 4.6.2.
+ The `pgrouting` extension was updated to version 3.2.2.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 14](postgresql-extensions.md#postgresql-extensions-14x).

### PostgreSQL version 14.4 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version144"></a>

PostgreSQL version 14.4 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 14.4 release](https://www.postgresql.org/docs/release/14.4/).

**New features and enhancements**
+ While this release includes other fixes, a noteworthy fix included in this release is for `CREATE INDEX CONCURRENTLY` and `REINDEX CONCURRENTLY` that can potentially cause silent data corruption of indexes. Amazon RDS has made the fix for the index corruption available since the release of Amazon RDS for PostgreSQL 14.3. This release does not include any RDS specific changes or extension version updates.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 14](postgresql-extensions.md#postgresql-extensions-14x).

### PostgreSQL version 14.3 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version143"></a>

PostgreSQL version 14.3 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 14.3 release](https://www.postgresql.org/docs/release/14.3/).

**New features and enhancements**
+ This release includes Amazon RDS collations designed to help with data migration from EBCDIC-based systems. For more information, see [RDS for PostgreSQL collations for EBCDIC and other mainframe migrations](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/CHAP_PostgreSQL.html#PostgreSQL.Concepts.General.FeatureSupport.Collations.mainframe.migration).
+ This release includes a fix that was made available in the [ PostgreSQL out-of-cycle release June 16, 2022](https://www.postgresql.org/about/news/postgresql-14-out-of-cycle-release-coming-june-16-2022-2466/) that resolves the `CREATE INDEX CONCURRENTLY` and `REINDEX CONCURRENTLY` issue. The issue affects all community PostgreSQL 14 versions prior to 14.4. For information about how to detect and remediate the issue, see [PostgreSQL 14 out-of-cycle release June 16, 2022](https://www.postgresql.org/about/news/postgresql-14-out-of-cycle-release-coming-june-16-2022-2466/).
+ Users with the `rds_superuser` role can now create roles for users.

This version also includes the following changes:
+ The [pglogical](https://github.com/2ndQuadrant/pglogical) extension was updated to version 2.4.1.
+ The [pg\$1hint\$1plan](https://github.com/ossc-db/pg_hint_plan) extension was updated to version 1.4.
+ The [postgresql-hll](https://github.com/citusdata/postgresql-hll)extension was updated to version 2.16.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 14](postgresql-extensions.md#postgresql-extensions-14x).

### PostgreSQL version 14.2 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version142"></a>

PostgreSQL version 14.2 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in [PostgreSQL 14.2](https://www.postgresql.org/docs/release/14.2/).

This version also includes the following changes:
+ The [mysql\$1fdw](https://github.com/EnterpriseDB/mysql_fdw) extension version 2.7.0 is added. For more information, see [Working with MySQL databases by using the mysql\$1fdw extension](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.Extensions.foreign-data-wrappers.html#postgresql-mysql-fdw).
+ The [tds\$1fdw](https://github.com/tds-fdw/tds_fdw) extension version 2.0.2 is added. For more information, see [Working with SQL Server databases by using the tds\$1fdw extension](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.Extensions.foreign-data-wrappers.html#postgresql-tds-fdw) in the *Amazon RDS User Guide*. 
+ The [pgaudit](https://github.com/pgaudit/pgaudit/) extension is updated to 1.6.1. For information about using this extension with RDS for PostgreSQL, see [Logging at the session and object level with the pgaudit extension](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.Extensions.html#Appendix.PostgreSQL.CommonDBATasks.pgaudit).
+ The [lo](https://www.postgresql.org/docs/current/lo.html) (large objects) module is updated to version 1.1. 

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 14](postgresql-extensions.md#postgresql-extensions-14x).

### PostgreSQL version 14.1 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version141"></a>

PostgreSQL version 14.1 is now available on Amazon RDS. This release contains several improvements that were announced in [PostgreSQL 14.1](https://www.postgresql.org/docs/14/release-14.html).

This version also includes the following changes:
+ The [old\$1snapshot ](https://www.postgresql.org/docs/14/oldsnapshot.html) extension 1.0 is added. If you set `old_snapshot_threshold` to a value, this extension lets you map transaction ID to a timestamp. 
+ The [amcheck](https://www.postgresql.org/docs/14/amcheck.html) extension was updated to version 1.3.
+ The [btree\$1gist](http://www.postgresql.org/docs/14/btree-gist.html) extension was updated to version 1.6.
+ The [cube](http://www.postgresql.org/docs/14/cube.html) extension was updated to version 1.5.
+ The [hstore](http://www.postgresql.org/docs/14/hstore.html) extension was updated to version 1.8.
+ The [intarray](http://www.postgresql.org/docs/14/intarray.html) extension was updated to version 1.5.
+ The [pageinspect](https://www.postgresql.org/docs/current/pageinspect.html) extension was updated to version 1.9.
+ The [pg\$1cron]() extension was updated to version 1.4
+ The [pg\$1partman]() extension was updated to version 4.6.0.
+ The [pg\$1repack](http://reorg.github.io/pg_repack/) extension was updated to version 1.4.7.
+ The [pg\$1stat\$1statements](http://www.postgresql.org/docs/14/pgstatstatements.html) extension was updated to version 1.9.
+ The [pg\$1trgm](http://www.postgresql.org/docs/14/pgtrgm.html) extension was updated to version 1.6.
+ The [pgaudit](https://github.com/pgaudit/pgaudit/blob/master/README.md) extension was updated to version 1.6.
+ The [pgrouting](http://docs.pgrouting.org/latest/en/index.html) extension was updated to version 3.2.0.
+ The [postgres\$1fdw](http://www.postgresql.org/docs/14/postgres-fdw.html) extension was updated to version 1.1.

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 14](postgresql-extensions.md#postgresql-extensions-14x).

## PostgreSQL 13 versions
<a name="postgresql-versions-version13"></a>

**Topics**
+ [PostgreSQL version 13.23-R2 on Amazon RDS](#postgresql-versions-version1323R2)
+ [PostgreSQL version 13.23 on Amazon RDS](#postgresql-versions-version1323)
+ [PostgreSQL version 13.22-R2 on Amazon RDS](#postgresql-versions-version1322R2)
+ [PostgreSQL version 13.22 on Amazon RDS](#postgresql-versions-version1322)
+ [PostgreSQL version 13.21-R2 on Amazon RDS](#postgresql-versions-version1321)
+ [PostgreSQL version 13.21 on Amazon RDS](#postgresql-versions-version1321R1)
+ [PostgreSQL version 13.20-R2 on Amazon RDS](#postgresql-versions-version1320R2)
+ [PostgreSQL version 13.20 on Amazon RDS](#postgresql-versions-version1320)
+ [PostgreSQL version 13.19 on Amazon RDS](#postgresql-versions-version1319R1)
+ [PostgreSQL version 13.18-R3 on Amazon RDS](#postgresql-versions-version1318R3)
+ [PostgreSQL version 13.18-R2 on Amazon RDS](#postgresql-versions-version1318R2)
+ [PostgreSQL version 13.18 on Amazon RDS](#postgresql-versions-version1318)
+ [PostgreSQL version 13.17 on Amazon RDS](#postgresql-versions-version1317)
+ [PostgreSQL version 13.16-R3 on Amazon RDS](#postgresql-versions-version1316R3)
+ [PostgreSQL version 13.16-R2 on Amazon RDS](#postgresql-versions-version1316R2)
+ [PostgreSQL version 13.16 on Amazon RDS](#postgresql-versions-version1316)
+ [PostgreSQL version 13.15-R4 on Amazon RDS](#postgresql-versions-version1315R4)
+ [PostgreSQL version 13.15-R3 on Amazon RDS](#postgresql-versions-version1315R3)
+ [PostgreSQL version 13.15-R2 on Amazon RDS](#postgresql-versions-version1315R2)
+ [PostgreSQL version 13.15 on Amazon RDS](#postgresql-versions-version1315)
+ [PostgreSQL version 13.14-R4 on Amazon RDS](#postgresql-versions-version1314R4)
+ [PostgreSQL version 13.14-R3 on Amazon RDS](#postgresql-versions-version1314R3)
+ [PostgreSQL version 13.14-R2 on Amazon RDS](#postgresql-versions-version1314R2)
+ [PostgreSQL version 13.14 on Amazon RDS](#postgresql-versions-version1314)
+ [PostgreSQL version 13.13-R2 on Amazon RDS](#postgresql-versions-version1313R2)
+ [PostgreSQL version 13.13 on Amazon RDS](#postgresql-versions-version1313)
+ [PostgreSQL version 13.12-R2 on Amazon RDS](#postgresql-versions-version1312R2)
+ [PostgreSQL version 13.12 on Amazon RDS](#postgresql-versions-version1312)
+ [PostgreSQL version 13.11-R2 on Amazon RDS](#postgresql-versions-version1311R2)
+ [PostgreSQL version 13.11 on Amazon RDS](#postgresql-versions-version1311)
+ [PostgreSQL version 13.10 on Amazon RDS (Deprecated)](#postgresql-versions-version1310)
+ [PostgreSQL version 13.9 on Amazon RDS (Deprecated)](#postgresql-versions-version139)
+ [PostgreSQL version 13.8 on Amazon RDS (Deprecated)](#postgresql-versions-version138)
+ [PostgreSQL version 13.7 on Amazon RDS (Deprecated)](#postgresql-versions-version137)
+ [PostgreSQL version 13.6 on Amazon RDS (Deprecated)](#postgresql-versions-version136)
+ [PostgreSQL version 13.5 on Amazon RDS (Deprecated)](#postgresql-versions-version135)
+ [PostgreSQL version 13.4 on Amazon RDS (Deprecated)](#postgresql-versions-version134)
+ [PostgreSQL version 13.3 on Amazon RDS (Deprecated)](#postgresql-versions-version133)
+ [PostgreSQL version 13.2 on Amazon RDS (Deprecated)](#postgresql-versions-version132)
+ [PostgreSQL version 13.1 on Amazon RDS (Deprecated)](#postgresql-versions-version131)

### PostgreSQL version 13.23-R2 on Amazon RDS
<a name="postgresql-versions-version1323R2"></a>

PostgreSQL version 13.23-R2 is now available on Amazon RDS. 

This version also includes the following changes:
+ Fixed an issue on the plv8 extension regarding CREATE EXTENSION failure on older version.

### PostgreSQL version 13.23 on Amazon RDS
<a name="postgresql-versions-version1323"></a>

PostgreSQL version 13.23 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 13.23 release](https://www.postgresql.org/docs/release/13.23/).

**General enhancements**

This version also includes the following extension changes:
+ The `pg_tle` extension was updated to version 1.5.2.
+ The `h3-pg` extension was updated to version 4.2.3.

### PostgreSQL version 13.22-R2 on Amazon RDS
<a name="postgresql-versions-version1322R2"></a>

PostgreSQL version 13.22-R2 is now available on Amazon RDS. 

This version also includes the following extension changes:
+ The `pgactive` extension was updated to version 2.1.6.

### PostgreSQL version 13.22 on Amazon RDS
<a name="postgresql-versions-version1322"></a>

PostgreSQL version 13.22 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 13.22 release](https://www.postgresql.org/docs/release/13.22/).

**General enhancements**
+ Updated V8 engine to version 11.5.150.2 for the `plv8` extension 3.1.10.

This version also includes the following extension changes:
+ The `pg_repack` extension was updated to version 1.5.2.
+ The `oracle_fdw` extension was updated to version 2.8.0.
+ The `pgactive` extension was updated to version 2.1.5.

### PostgreSQL version 13.21-R2 on Amazon RDS
<a name="postgresql-versions-version1321"></a>

PostgreSQL version 13.21-R2 is now available on Amazon RDS. 

**General enhancements**
+ Updated V8 engine to version 11.5.150.2 for the `plv8` extension 3.1.10.

This version also includes the following extension changes:
+ The `pgactive` extension was updated to version 2.1.6.

### PostgreSQL version 13.21 on Amazon RDS
<a name="postgresql-versions-version1321R1"></a>

PostgreSQL version 13.21 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 13.21 release](https://www.postgresql.org/docs/release/13.21/).

**General enhancements**
+ Fixed for the `address_standardizer_data_us` extension issue regarding ALTER EXTENSION UPDATE failure.
+ Changed the Oracle client library version on x86 to 19.26.0.0.0.
+ Fixed the `pgactive` extension unable to upgrade issue due to incorrect extension upgrade scripts which causes replication to break after engine upgrade.

This version also includes the following extension changes:
+ The `pg_repack` extension was updated to version 1.5.1.
+ The `pglogical` extension was updated to version 2.4.5.
+ The `PgAudit` extension was updated to version 1.5.3.

### PostgreSQL version 13.20-R2 on Amazon RDS
<a name="postgresql-versions-version1320R2"></a>

PostgreSQL version 13.20-R2 is now available on Amazon RDS. 

**Fixes and Improvements**
+ Updated V8 engine to version 11.5.150.2 for the `plv8` extension 3.1.10.

This version also includes the following extension changes:
+ The `pgactive` extension was updated to version 2.1.6.

### PostgreSQL version 13.20 on Amazon RDS
<a name="postgresql-versions-version1320"></a>

PostgreSQL version 13.20 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 13.20 release](https://www.postgresql.org/docs/release/13.20/).

### PostgreSQL version 13.19 on Amazon RDS
<a name="postgresql-versions-version1319R1"></a>

PostgreSQL version 13.19 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 13.19 release](https://www.postgresql.org/docs/release/13.19/).

**New features and enhancements**.
+ In Blue/Green deployments, creating or modifying temporary objects is no longer classified as restricted DDL.
+ Resolved an issue where DVB returned duplicate rows during slow vacuum analysis.
+ Resolved CVE RUSTSEC-2024-0421 by upgrading URL Rust crate to 2.5.4. For more information, see [RUSTSEC-2024-0421](https://rustsec.org/advisories/RUSTSEC-2024-0421.html).
+ Applied Promise.any error allocation fix for V8 9.7.37, PLV8 3.1.10.

**This version also includes the following extension changes:**.
+ The `rds_tools` extension was updated to 1.9.
+ The `orafce` extension was updated to 4.14.0.
+ The `pg_cron` extension was updated to 1.6.5.
+ The `pg_active` extension was updated to 2.1.4.
+ The `prefix` extension was updated to 1.2.10.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 13](postgresql-extensions.md#postgresql-extensions-13x).

### PostgreSQL version 13.18-R3 on Amazon RDS
<a name="postgresql-versions-version1318R3"></a>

PostgreSQL version 13.18-R3 is now available on Amazon RDS.

**General enhancements**
+ Updated V8 engine to version 11.5.150.2 for the `plv8` extension 3.1.10.

### PostgreSQL version 13.18-R2 on Amazon RDS
<a name="postgresql-versions-version1318R2"></a>

PostgreSQL version 13.18-R2 is now available on Amazon RDS. This release contains fix for [CVE-2022-4174](https://nvd.nist.gov/vuln/detail/cve-2022-4174) and Rust [CVE RUSTSEC-2024-042](https://rustsec.org/advisories/RUSTSEC-2024-0421.html) for PostgreSQL announced in [PostgreSQL 13.18](https://www.postgresql.org/docs/release/13.18/).

### PostgreSQL version 13.18 on Amazon RDS
<a name="postgresql-versions-version1318"></a>

PostgreSQL version 13.18 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 13.18 release](https://www.postgresql.org/docs/release/13.18/).

### PostgreSQL version 13.17 on Amazon RDS
<a name="postgresql-versions-version1317"></a>

PostgreSQL version 13.17 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 13.17 release](https://www.postgresql.org/docs/release/13.17/).

**New features**
+ Starting in RDS for PostgreSQL versions 17.1, 16.5, 15.9, 14.14, 13.17, and 12.21, some connection slots are reserved for the new `rds_reserved` role, which is granted to Amazon RDS administrative users. The number of reserved connection slots is determined by the `rds.rds_reserved_connections` parameter . You may need to adjust the value of the `max_connections` parameter to account for the number of Amazon RDS reserved connection slots.

  The `rds_reserved` role is a new predefined role created by Amazon RDS. Predefined roles and their privileges can't be changed. You can't drop, rename, or modify privileges for these predefined roles. Attempting to modify a predefined role results in an error.
+ Unblocked `ALTER TEMP TABLE` and `DROP TEMP TABLE` in Blue/Green replication.
+ Added the `rds_tools.pg_ls_multixactdir()` function for `pg_multixact` to monitor the directory disk space usage.
+ Fixed potential incompatibilities in the `plv8` extension occurring after database upgrades.

**Updated features**
+ The `oracle_fdw` extension was updated to version 2.7.0.
+ The `orafce` extension was updated to version 4.13.4.
+ The `pg_cron` extension was updated to version 1.6.4.
+ The `pg_hint_plan` extension was updated to version 1.3.10.
+ The `pgvector` extension was updated to version 0.8.0.
+ The `plprofiler` extension was updated to version 4.2.5.
+ The `PostGIS` extension was updated to version 3.4.3.
+ The `rds_tools` extension was updated to version 1.7.
+ The `tds_fdw` extension was updated to version 2.0.4.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 13](postgresql-extensions.md#postgresql-extensions-13x).

### PostgreSQL version 13.16-R3 on Amazon RDS
<a name="postgresql-versions-version1316R3"></a>

PostgreSQL version 13.16-R3 is now available on Amazon RDS. This release contains fixes for [CVE-2022-4174](https://nvd.nist.gov/vuln/detail/cve-2022-4174) and Rust [CVE RUSTSEC-2024-042](https://rustsec.org/advisories/RUSTSEC-2024-0421.html) for PostgreSQL announced in [PostgreSQL 13.16](https://www.postgresql.org/docs/release/13.16/).

### PostgreSQL version 13.16-R2 on Amazon RDS
<a name="postgresql-versions-version1316R2"></a>

PostgreSQL version 13.16-R2 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 13.16 release](https://www.postgresql.org/docs/release/13.16/).

**New features and enhancements**
+ Fixed potential incompatibilities in the `plv8` extension occurring after database upgrades.

### PostgreSQL version 13.16 on Amazon RDS
<a name="postgresql-versions-version1316"></a>

PostgreSQL version 13.16 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 13.16 release](https://www.postgresql.org/docs/release/13.16/).

**New features and enhancements**
+ [Delegated extension role](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/RDS_delegated_ext.html) was added.

This version also includes the following extension updates:
+ The `hypopg` extension was updated to 1.4.1.
+ The `mysql_fdw` extension was updated to 2.9.2.
+ The `orafce` extension was updated to 4.10.3.
+ The `pg_cron` extension was updated to 1.6.3.
+ The `pgTAP` extension was updated to 1.3.3.
+ The `pgvector` extension was updated to 0.7.3.
+ The `wal2json` extension was updated to 2.6.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 13](postgresql-extensions.md#postgresql-extensions-13x).

### PostgreSQL version 13.15-R4 on Amazon RDS
<a name="postgresql-versions-version1315R4"></a>

PostgreSQL version 13.15-R4 is now available on Amazon RDS. This release contains fixed for [CVE-2022-4174](https://nvd.nist.gov/vuln/detail/cve-2022-4174) and Rust [CVE RUSTSEC-2024-042](https://rustsec.org/advisories/RUSTSEC-2024-0421.html) for PostgreSQL announced in [PostgreSQL 13.15](https://www.postgresql.org/docs/release/13.15/).

### PostgreSQL version 13.15-R3 on Amazon RDS
<a name="postgresql-versions-version1315R3"></a>

PostgreSQL version 13.15-R3 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 13.15 release](https://www.postgresql.org/docs/release/13.15/).

**New features and enhancements**
+ Fixed potential incompatibilities in the `plv8` extension occurring after database upgrades.

### PostgreSQL version 13.15-R2 on Amazon RDS
<a name="postgresql-versions-version1315R2"></a>

PostgreSQL version 13.15-R2 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 13.15 release](https://www.postgresql.org/docs/release/13.15/).

**New features and enhancements**
+ Includes support for four new crates in PL/Rust, including:
  + `regex`
  + `serde`
  + `serde_json`
  + `url`
+ Fixed a security exploit issue in `plv8`
+ Fixed a security issue in `pg_repack`
+ Fixed a performance issue in `pgvector` for index creation on halfvec data type
+ Fixed a bug in `aws_s3` causing import queries to occasionally get stuck and fail to terminate
+ Fixed a performance issue in `aws_s3` and `aws_lambda`

**This version also includes the following extension change:**
+ The `plv8` extension was updated to 3.1.10.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 13](postgresql-extensions.md#postgresql-extensions-13x).

### PostgreSQL version 13.15 on Amazon RDS
<a name="postgresql-versions-version1315"></a>

PostgreSQL version 13.15 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 13.15 release](https://www.postgresql.org/docs/release/13.15/).

**New features and enhancements**
+ The blue/green deployment switchover won’t be blocked by the `REFRESH MATERIALIZED VIEW` statement.
+ Fixed the permission denial for the `CREATE DATABASE WITH OWNER` statement.
+ Upgraded the `aws_s3` extension to version 1.2 to support the export to S3 with the KMS customer managed key.
+ Fixed a pgvector compatibility issue with some of the previous generations of DB instances, such as m4.

This version also includes the following extension updates:
+ The `aws_s3` extension was updated to 1.2.
+ The `orafce` extension was updated to 4.9.4.
+ The `pg_hint_plan` extension was updated to 1.3.9.
+ The `pgvector` extension was updated to 0.7.0.
+ The `postgis` extension was updated to 3.4.2.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 13](postgresql-extensions.md#postgresql-extensions-13x).

### PostgreSQL version 13.14-R4 on Amazon RDS
<a name="postgresql-versions-version1314R4"></a>

PostgreSQL version 13.14-R4 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 13.14 release](https://www.postgresql.org/docs/release/13.14/).

**New features and enhancements**
+ Fixed potential incompatibilities in the `plv8` extension occurring after database upgrades.

### PostgreSQL version 13.14-R3 on Amazon RDS
<a name="postgresql-versions-version1314R3"></a>

PostgreSQL version 13.14-R3 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 13.14 release](https://www.postgresql.org/docs/release/13.14/).

**New features and enhancements**
+ Fixed a security exploit issue in `plv8`
+ Fixed a security issue in `pg_repack`

**This version also includes the following extension change:**
+ The `plv8` extension was updated to 3.1.10.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 13](postgresql-extensions.md#postgresql-extensions-13x).

### PostgreSQL version 13.14-R2 on Amazon RDS
<a name="postgresql-versions-version1314R2"></a>

PostgreSQL version 13.14-R2 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 13.14 release](https://www.postgresql.org/docs/release/13.14/).

**New features and enhancements**
+ Fixed a bug preventing upgrades to `PostGIS` version 3.4.1.

**This version also includes the following extension changes:**
+ The `pg_partman` extension was updated to version 4.5.1.
+ The `pg_tle` extension was updated to version 1.4.0.
+ The `pgactive` extension was updated to version 2.1.3.
+ The `pgtap` extension was updated to version 1.3.2.
+ The `pgvector` extension was updated to version 0.6.2.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 13](postgresql-extensions.md#postgresql-extensions-13x).

### PostgreSQL version 13.14 on Amazon RDS
<a name="postgresql-versions-version1314"></a>

PostgreSQL version 13.14 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 13.14 release.](https://www.postgresql.org/docs/release/13.14/).

**New features and enhancements**
+ Fixed the multisecond latency on the `aws_lambda` calls
+ Fixed a bug preventing the termination of autovacuum

This version includes the following changes:
+ The `orafce` extension was updated to version 4.9.0.
+ The `pg_cron` extension was updated to version 1.6.2.
+ The `pgactive` extension was updated to version 2.1.2.
+ The `pgvector` extension was updated to 0.6.0.
+ The `PostGIS` extension was updated to 3.4.1.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 13](postgresql-extensions.md#postgresql-extensions-13x).

### PostgreSQL version 13.13-R2 on Amazon RDS
<a name="postgresql-versions-version1313R2"></a>

PostgreSQL version 13.13-R2 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 13.13 release](https://www.postgresql.org/docs/release/13.13/).

**New features and enhancements**
+ Fixed a crash in `CatalogCacheComputeHashValue` with `dblink_connect` due to a `Null` or `invalid` connection. 
+ Backported run\$1as\$1owner to RPG 13: 
  +  Backported a security fix for the logical replication apply worker that allows regular table owners to obtain privilege escalation to the subscription owner (an rds\$1superuser). The logical apply worker mitigates the risk by temporarily switching the role from the subscription owner to the table owner during logical apply.

     In the cases of potential security breaches, the fix will break your existing logical replication if any table in the subscription is owned by a regular user, and there are security-restricted operations attached to the table via triggers or default expressions. We recommend that you carefully examine the operations attached to the table if you notice the logical replication is broken after the upgrade. If all of the operations are as expected and you wish to revert the behavior of the logical replication so your application can continue, you can do so by setting the new parameter `rds.run_logical_replication_as_subscription_owner` to true. Be aware that by doing so your logical replication will be vulnerable to the aforementioned security risk again. 
+ Added `rds.run_logical_replication_as_subscription_owner` to the Amazon RDS parameter group. 
+ Fixed the overflow in the `pg_transport` extension. 
+ Removed the unsupported shared libraries from the engine binary. 

This version includes the following change:
+ The `plrust` extension was updated to version 1.2.7.

### PostgreSQL version 13.13 on Amazon RDS
<a name="postgresql-versions-version1313"></a>

PostgreSQL version 13.13 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 13.13 release](https://www.postgresql.org/docs/release/13.13/).

**New features and enhancements**
+ Fixed a bug where `pg_database_size()` with an invalid OID causes a crash.
+ Added support for the `rds.enable_pgactive` parameter in rdsutils to avoid the warning message.
+ Exposed RDKit guc param `rdkit.morgan_fp_size`.
+ Fixed the bug where setting `TABLESPACE` with `DEFAULT` option in `CREATE` or `ALTER DATABASE` fails.
+ Added the `pgactive` extension.

This version includes the following changes:
+ The `h3-pg` extension was updated to version 4.1.3.
+ The `hll` extension was updated to version 2.18
+ The `oracle_fdw` extension was updated to version 2.6.0.
+ The `orafce` extension was updated to version 4.6.1.
+ The `pg_cron` extension was updated to version 1.6.1.
+ The `pg_proctab` extension was updated to version 0.0.10.
+ The `pgtap` extension was updated to version 1.3.1.
+ The `pgvector` extension was updated to version 0.5.1.
+ The `plprofiler` extension was updated to version 4.2.4.
+ The `plrust` extension was updated to version 1.2.6.
+ The `PostGIS` extension was updated to version 3.4.0.

### PostgreSQL version 13.12-R2 on Amazon RDS
<a name="postgresql-versions-version1312R2"></a>

PostgreSQL version 13.12-R2 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 13.12 release](https://www.postgresql.org/docs/release/13.12/).

This version includes the following change:
+ The `pgvector` extension was updated to version 0.5.0.
+ The `plrust` extension was updated to version 1.2.5.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 13](postgresql-extensions.md#postgresql-extensions-13x).

### PostgreSQL version 13.12 on Amazon RDS
<a name="postgresql-versions-version1312"></a>

PostgreSQL version 13.12 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 13.12 release](https://www.postgresql.org/docs/release/13.12/).

**New features and enhancements**
+ A bug was fixed preventing users with the `rds_superuser` role from creating schemas in databases owned by other users.
+ Users with the `rds_superuser` role can now access toast tables in the `pg_toast schema` that are owned by other users.
+ Fixed an issue where `ALTER TABLE` took a ShareLock and may cause deadlocks.

This version also includes the following changes:
+ `hypopg` was updated to 1.4.0
+ `orafce` was updated to 4.3.0
+ `pg_tle` was added at version 1.1.1
+ `pglogical` was updated to 2.4.3
+ `plrust` was added at version 1.2.3
+ `PostGIS` was updated to 3.3.3

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 13](postgresql-extensions.md#postgresql-extensions-13x).

### PostgreSQL version 13.11-R2 on Amazon RDS
<a name="postgresql-versions-version1311R2"></a>

PostgreSQL version 13.11-R2 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 13.11 release](https://www.postgresql.org/docs/release/13.11/).

This version also includes the following change:
+ The `pgvector` extension was updated to version 0.4.4.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 14](postgresql-extensions.md#postgresql-extensions-14x).

### PostgreSQL version 13.11 on Amazon RDS
<a name="postgresql-versions-version1311"></a>

PostgreSQL version 13.11 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 13.11 release](https://www.postgresql.org/docs/release/13.11/).

**New features and enhancements**
+ Includes changes to allow rds-superuser to run the `pg_stat_reset_slru` function
+ Fixed a security issue involving `rds_sec_override` which wasn't reset after the intended usage, allowing unauthorized access to restricted tables
+ Added extension `hypopg` version 1.3.1
+ Added extension `pgvector` version 0.4.1
+ You can use logical\$1seed\$1lsn to determine the LSN at which a snapshot is taken in order to establish logical replication connection between the source and the restored target database. You can then use logical replication to continuously stream the newer data recorded after the LSN and synchronize the changes from publisher to subscriber. Specifically, it allows the customer to create a logical slot on a source RDS database, take a snapshot, restore the snapshot to a new RDS instance (target), and use the value of logical\$1seed\$1lsn() from the target instance to advance the logical slot on the source instance in order to subscribe the target to the source.

This version also includes the following changes:
+ `compat-collation-for-glibc` was updated to version 1.8
+ `libcompat` was updated to version 1.8
+ `pg_cron` was updated to version 1.5.2
+ `pglogical` was updated to version 2.4.2
+ `PostGIS` was updated to version 3.3.2

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 13](postgresql-extensions.md#postgresql-extensions-13x).

### PostgreSQL version 13.10 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1310"></a>

PostgreSQL version 13.10 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 13.10 release](https://www.postgresql.org/docs/release/13.10/).

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 13](postgresql-extensions.md#postgresql-extensions-13x).

### PostgreSQL version 13.9 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version139"></a>

PostgreSQL version 13.9 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 13.9 release](https://www.postgresql.org/docs/release/13.9/).

New features and enhancements
+ PostgreSQL version 13.9 added support for the `tcn` ("triggered change notification") extension which generates notification events on table changes via a trigger function called `triggered_change_notification`. The tcn extension is useful for applications using drivers which support asynchronous notification. This makes it possible to notify all clients if the contents of a table have been changed, enabling them to take appropriate action in near-real time, such as updating a table cache or information display.

  However, such functionality should only be used with care as it makes all data changes on the table available to all clients (including unprivileged users) through the notification events when they listen on the tcn channel. It is the user’s responsibility to avoid using tcn trigger on a table with sensitive data to avoid information leakage. 

This version includes the following changes:
+ The seg extension version 1.3 is added.
+ The tcn extension version 1.0 is added.
+ The orafce extension is updated to 3.24.
+ The pgaudit extension is updated to 1.5.2.
+ The pgtap extension is updated to 1.2.0.
+ The PostGIS dependency GDAL is updated to 3.4.3.
+ The PostGIS dependency PROJ is updated to 8.0.1.
+ The wal2json extension is updated to 2.5.
+ The aws\$1s3 extension is updated to 1.1.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 13](postgresql-extensions.md#postgresql-extensions-13x).

### PostgreSQL version 13.8 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version138"></a>

PostgreSQL version 13.8 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in [PostgreSQL 13.8](https://www.postgresql.org/docs/release/13.8/).

This version includes the following changes:
+ The [PostGIS](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.PostGIS.html) extension is updated to 3.1.7
+ The [pgRouting](https://docs.pgrouting.org/latest/en/index.html) extension is updated to 3.1.4

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 13](postgresql-extensions.md#postgresql-extensions-13x).

### PostgreSQL version 13.7 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version137"></a>

PostgreSQL version 13.7 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in [PostgreSQL 13.7](https://www.postgresql.org/docs/release/13.7/).

This version also includes the following changes:
+ The [pglogical](https://github.com/2ndQuadrant/pglogical) extension is updated to 2.4.1

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 13](postgresql-extensions.md#postgresql-extensions-13x).

### PostgreSQL version 13.6 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version136"></a>

PostgreSQL version 13.6 is now available on Amazon RDS. This release contains several fixes and improvements that were announced in [PostgreSQL 13.6](https://www.postgresql.org/docs/release/13.6/).

This version also includes the following changes:
+ The [mysql\$1fdw](https://github.com/EnterpriseDB/mysql_fdw) extension version 2.7.0 is added. For more information, see [Working with MySQL databases by using the mysql\$1fdw extension](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.Extensions.foreign-data-wrappers.html#postgresql-mysql-fdw) in the *Amazon RDS User Guide*.
+ The [tds\$1fdw](https://github.com/tds-fdw/tds_fdw) extension version 2.0.2 is added. For more information, see [Working with SQL Server databases by using the tds\$1fdw extension](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.Extensions.foreign-data-wrappers.html#postgresql-tds-fdw) in the *Amazon RDS User Guide*. 
+ The [pgaudit](https://github.com/pgaudit/pgaudit/) extension is updated to 1.5.1. For information about using this extension with RDS for PostgreSQL, see [Logging at the session and object level with the pgaudit extension](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.Extensions.html#Appendix.PostgreSQL.CommonDBATasks.pgaudit) in the *Amazon RDS User Guide*.
+ The [lo](https://www.postgresql.org/docs/current/lo.html) (large objects) module is updated to version 1.1. 

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 13](postgresql-extensions.md#postgresql-extensions-13x).

### PostgreSQL version 13.5 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version135"></a>

PostgreSQL version 13.5 is now available on Amazon RDS. This release contains several fixes and improvements that were announced in [PostgreSQL 13.5](https://www.postgresql.org/docs/release/13.5/).

This version also includes the following change:
+  The [pg\$1cron](https://github.com/citusdata/pg_cron) extension is updated to 1.4.1

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 13](postgresql-extensions.md#postgresql-extensions-13x).

### PostgreSQL version 13.4 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version134"></a>

PostgreSQL version 13.4 is now available on Amazon RDS. This release contains several fixes and improvements that were announced in [PostgreSQL 13.4](https://www.postgresql.org/docs/release/13.4/).

This version also includes the following changes:
+ The `flow_control` extension version 1.0 is added in this release.
+ The [spi module](https://www.postgresql.org/docs/13/contrib-spi.html) extensions refint, autoinc, inset\$1username, and moddatetime version 1.0 are added. 
+ The [pgrouting](https://docs.pgrouting.org/latest/en/index.html) extension is updated to version 3.1.3.
+ The `pglogical` extension is updated to version 2.4.0.
+ The [PostGIS](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.PostGIS.html) extension is updated to version 3.1.4, along with the following related extensions:
  + [address\$1standardizer](https://postgis.net/docs/standardize_address.html)
  + [address\$1standardizer\$1data\$1us](https://postgis.net/docs/standardize_address.html)
  + [PostGIS\$1raster](https://postgis.net/docs/raster.html)
  + [PostGIS\$1tiger\$1geocoder](http://postgis.net/docs/Geocode.html)
  + [PostGIS\$1topology](http://postgis.net/docs/manual-dev/Topology.html)

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 13](postgresql-extensions.md#postgresql-extensions-13x).

### PostgreSQL version 13.3 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version133"></a>

PostgreSQL version 13.3 is now available on Amazon RDS. This release contains several fixes and improvements that were announced in [PostgreSQL 13.3](https://www.postgresql.org/docs/release/13.3/).

This version also includes the following changes:
+ The [oracle\$1fdw](https://github.com/laurenz/oracle_fdw) extension version 2.3.0 is added. For more information, see [Working with Oracle databases by using the oracle\$1fdw extension](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.Extensions.foreign-data-wrappers.html#postgresql-oracle-fdw) in the *Amazon RDS User Guide*. 
+ The [orafce](https://github.com/orafce/orafce) extension is updated to version 3.15.
+ The [pg\$1cron](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/PostgreSQL_pg_cron.html) extension is updated to version 1.3.1.
+ The [ pg\$1partman](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/PostgreSQL_Partitions.html) extension is updated to version 4.5.1.
+ The [PostGIS](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.PostGIS.html) extension is updated to version 3.0.3, along with the following related extensions:
  + [address\$1standardizer](https://postgis.net/docs/standardize_address.html)
  + [address\$1standardizer\$1data\$1us](https://postgis.net/docs/standardize_address.html)
  + [PostGIS\$1raster](https://postgis.net/docs/raster.html)
  + [PostGIS\$1tiger\$1geocoder](http://postgis.net/docs/Geocode.html)
  + [PostGIS\$1topology](http://postgis.net/docs/manual-dev/Topology.html)

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 13](postgresql-extensions.md#postgresql-extensions-13x).

### PostgreSQL version 13.2 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version132"></a>

PostgreSQL version 13.2 is now available on Amazon RDS. This release contains several fixes and improvements that were announced in [PostgreSQL 13.2](https://www.postgresql.org/docs/release/13.2/).

This version also added the following new extensions:
+ The `aws_lambda` extension version 1.0. For more information, see [ Invoking an AWS Lambda function from an RDS for PostgreSQL DB instance](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/PostgreSQL-Lambda.html) in the *Amazon RDS User Guide*. 
+ The [pg\$1bigm](https://pgbigm.osdn.jp/pg_bigm_en-1-2.html) extension version 1.2. 

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 13](postgresql-extensions.md#postgresql-extensions-13x).

### PostgreSQL version 13.1 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version131"></a>

PostgreSQL version 13.1 is now available on Amazon RDS. This release contains several fixes and improvements that were announced in [PostgreSQL 13.0](https://www.postgresql.org/docs/13/release-13.html) and [PostgreSQL 13.1](https://www.postgresql.org/docs/13/release-13-1.html).

This version added: 
+ The `bool_plperl` extension version 1.0. 
+ The `rds_tools` extension version 1.0. For more information, see [ Checking for users with non-SCRAM passwords ](https://aws.amazon.com/blogs/database/scram-authentication-in-rds-for-postgresql-13/). 

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 13](postgresql-extensions.md#postgresql-extensions-13x). 

## PostgreSQL 12 versions (Some of these versions have reached the end of standard support or deprecated.)
<a name="postgresql-versions-version12"></a>

**Topics**
+ [PostgreSQL version 12.22-R3 on Amazon RDS (This version has reached the end of standard support.)](#postgresql-versions-version1222R3)
+ [PostgreSQL version 12.22-R2 on Amazon RDS (This version has reached the end of standard support.)](#postgresql-versions-version1222R2)
+ [PostgreSQL version 12.22 on Amazon RDS (This version has reached the end of standard support.)](#postgresql-versions-version1222)
+ [PostgreSQL version 12.21 on Amazon RDS (Deprecated)](#postgresql-versions-version1221)
+ [PostgreSQL version 12.20-R3 on Amazon RDS (Deprecated)](#postgresql-versions-version1220R3)
+ [PostgreSQL version 12.20-R2 on Amazon RDS (Deprecated)](#postgresql-versions-version1220R2)
+ [PostgreSQL version 12.20 on Amazon RDS (Deprecated)](#postgresql-versions-version1220)
+ [PostgreSQL version 12.19-R4 on Amazon RDS (Deprecated)](#postgresql-versions-version1219R4)
+ [PostgreSQL version 12.19-R3 on Amazon RDS (Deprecated)](#postgresql-versions-version1219R3)
+ [PostgreSQL version 12.19-R2 on Amazon RDS (Deprecated)](#postgresql-versions-version1219R2)
+ [PostgreSQL version 12.19 on Amazon RDS (Deprecated)](#postgresql-versions-version1219)
+ [PostgreSQL version 12.18-R4 on Amazon RDS (Deprecated)](#postgresql-versions-version1218R4)
+ [PostgreSQL version 12.18-R3 on Amazon RDS (Deprecated)](#postgresql-versions-version1218R3)
+ [PostgreSQL version 12.18-R2 on Amazon RDS (Deprecated)](#postgresql-versions-version1218R2)
+ [PostgreSQL version 12.18 on Amazon RDS (Deprecated)](#postgresql-versions-version1218)
+ [PostgreSQL version 12.17-R2 on Amazon RDS (Deprecated)](#postgresql-versions-version1217R2)
+ [PostgreSQL version 12.17 on Amazon RDS (Deprecated)](#postgresql-versions-version1217)
+ [PostgreSQL version 12.16-R2 on Amazon RDS (Deprecated)](#postgresql-versions-version1216R2)
+ [PostgreSQL version 12.16 on Amazon RDS (Deprecated)](#postgresql-versions-version1216)
+ [PostgreSQL version 12.15 on Amazon RDS (Deprecated)](#postgresql-versions-version1215)
+ [PostgreSQL version 12.14 on Amazon RDS (Deprecated)](#postgresql-versions-version1214)
+ [PostgreSQL version 12.13 on Amazon RDS (Deprecated)](#postgresql-versions-version1213)
+ [PostgreSQL version 12.12 on Amazon RDS (Deprecated)](#postgresql-versions-version1212)
+ [PostgreSQL version 12.11 on Amazon RDS (Deprecated)](#postgresql-versions-version1211)
+ [PostgreSQL version 12.10 on Amazon RDS (Deprecated)](#postgresql-versions-version1210)
+ [PostgreSQL version 12.9 on Amazon RDS (Deprecated)](#postgresql-versions-version129)
+ [PostgreSQL version 12.8 on Amazon RDS (Deprecated)](#postgresql-versions-version128)
+ [PostgreSQL version 12.7 on Amazon RDS (Deprecated)](#postgresql-versions-version127)
+ [PostgreSQL version 12.6 on Amazon RDS (Deprecated)](#postgresql-versions-version126)
+ [PostgreSQL version 12.5 on Amazon RDS (Deprecated)](#postgresql-versions-version125)
+ [PostgreSQL version 12.4 on Amazon RDS (Deprecated)](#postgresql-versions-version124)
+ [PostgreSQL version 12.3 on Amazon RDS (Deprecated)](#postgresql-versions-version123)
+ [PostgreSQL version 12.2 on Amazon RDS (Deprecated)](#postgresql-versions-version122)

### PostgreSQL version 12.22-R3 on Amazon RDS (This version has reached the end of standard support.)
<a name="postgresql-versions-version1222R3"></a>

PostgreSQL version 12.22-R3 is now available on Amazon RDS.

**General enhancements**
+ Updated V8 engine to version 11.5.150.2 for the `plv8` extension 3.1.10.

### PostgreSQL version 12.22-R2 on Amazon RDS (This version has reached the end of standard support.)
<a name="postgresql-versions-version1222R2"></a>

PostgreSQL version 12.22-R2 is now available on Amazon RDS. This release contains several fix for PLV8 [CVE-2022-4174](https://nvd.nist.gov/vuln/detail/cve-2022-4174) for PostgreSQL announced in [PostgreSQL 12.22](https://www.postgresql.org/docs/release/12.22/).

### PostgreSQL version 12.22 on Amazon RDS (This version has reached the end of standard support.)
<a name="postgresql-versions-version1222"></a>

PostgreSQL version 12.22 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 12.22 release](https://www.postgresql.org/docs/release/12.22/).

### PostgreSQL version 12.21 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1221"></a>

PostgreSQL version 12.21 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in [PostgreSQL 12.21](https://www.postgresql.org/docs/release/12.21/).

**New features**
+ Starting in RDS for PostgreSQL versions 17.1, 16.5, 15.9, 14.14, 13.17, and 12.21, some connection slots are reserved for the new `rds_reserved` role, which is granted to Amazon RDS administrative users. The number of reserved connection slots is determined by the `rds.rds_reserved_connections` parameter . You may need to adjust the value of the `max_connections` parameter to account for the number of Amazon RDS reserved connection slots.

  The `rds_reserved` role is a new predefined role created by Amazon RDS. Predefined roles and their privileges can't be changed. You can't drop, rename, or modify privileges for these predefined roles. Attempting to modify a predefined role results in an error.
+ Unblocked `ALTER TEMP TABLE` and `DROP TEMP TABLE` in Blue/Green replication.
+ Added the `rds_tools.pg_ls_multixactdir()` function for `pg_multixact` to monitor the directory disk space usage.
+ Fixed potential incompatibilities in the `plv8` extension occurring after database upgrades.

**Updated features**
+ The `oracle_fdw` extension was updated to version 2.7.0.
+ The `orafce` extension was updated to version 4.13.4.
+ The `pg_cron` extension was updated to version 1.6.4.
+ The `pg_hint_plan` extension was updated to version 1.3.10.
+ The `pgvector` extension was updated to version 0.7.4.
+ The `PostGIS` extension was updated to version 3.4.3.
+ The `rds_tools` extension was updated to version 1.7.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 12](postgresql-extensions.md#postgresql-extensions-12x).

### PostgreSQL version 12.20-R3 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1220R3"></a>

PostgreSQL version 12.20-R3 is now available on Amazon RDS. This release contains fixes for [CVE-2022-4174](https://nvd.nist.gov/vuln/detail/cve-2022-4174) and Rust [CVE RUSTSEC-2024-042](https://rustsec.org/advisories/RUSTSEC-2024-0421.html) for PostgreSQL announced in [PostgreSQL 12.20](https://www.postgresql.org/docs/release/12.20/).

### PostgreSQL version 12.20-R2 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1220R2"></a>

PostgreSQL version 12.20-R2 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 12.20 release](https://www.postgresql.org/docs/release/12.20/).

**New features and enhancements**
+ Fixed potential incompatibilities in the `plv8` extension occurring after database upgrades.

### PostgreSQL version 12.20 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1220"></a>

PostgreSQL version 12.20 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 12.20 release](https://www.postgresql.org/docs/release/12.20/).

**New features and enhancements**
+ [Delegated extension role](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/RDS_delegated_ext.html) was added.

This version also includes the following extension updates:
+ The `orafce` extension was updated to 4.10.3.
+ The `pg_cron` extension was updated to 1.6.3.
+ The `pgTAP` extension was updated to 1.3.3.
+ The `pgvector` extension was updated to 0.7.3.
+ The `wal2json` extension was updated to 2.6.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 12](postgresql-extensions.md#postgresql-extensions-12x).

### PostgreSQL version 12.19-R4 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1219R4"></a>

PostgreSQL version 12.19-R4 is now available on Amazon RDS. This release contains fixes for [CVE-2022-4174](https://nvd.nist.gov/vuln/detail/cve-2022-4174) and Rust [CVE RUSTSEC-2024-042](https://rustsec.org/advisories/RUSTSEC-2024-0421.html) for PostgreSQL announced in [PostgreSQL 12.19](https://www.postgresql.org/docs/release/12.19/).

### PostgreSQL version 12.19-R3 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1219R3"></a>

PostgreSQL version 12.19-R3 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 12.19 release](https://www.postgresql.org/docs/release/12.19/).

**New features and enhancements**
+ Fixed potential incompatibilities in the `plv8` extension occurring after database upgrades.

### PostgreSQL version 12.19-R2 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1219R2"></a>

PostgreSQL version 12.19-R2 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 12.19 release](https://www.postgresql.org/docs/release/12.19/).

**New features and enhancements**
+ Fixed a security exploit issue in `plv8`
+ Fixed a security issue in `pg_repack`
+ Fixed a performance issue in `pgvector` for index creation on halfvec data type
+ Fixed a bug in `aws_s3` causing import queries to occasionally get stuck and fail to terminate
+ Fixed a performance issue in `aws_s3` and `aws_lambda`

**This version also includes the following extension change:**
+ The `plv8` extension was updated to 3.1.10.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 12](postgresql-extensions.md#postgresql-extensions-12x).

### PostgreSQL version 12.19 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1219"></a>

PostgreSQL version 12.19 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 12.19 release](https://www.postgresql.org/docs/release/12.19/).

**New features and enhancements**
+ The blue/green deployment switchover won’t be blocked by the `REFRESH MATERIALIZED VIEW` statement.
+ Fixed the permission denial for the `CREATE DATABASE WITH OWNER` statement.
+ Upgraded the `aws_s3` extension to version 1.2 to support the export to S3 with the KMS customer managed key.
+ Fixed a pgvector compatibility issue with some of the previous generations of DB instances, such as m4.

This version also includes the following extension updates:
+ The `aws_s3` extension was updated to 1.2.
+ The `orafce` extension was updated to 4.9.4.
+ The `pg_hint_plan` extension was updated to 1.3.9.
+ The `pgvector` extension was updated to 0.7.0.
+ The `postgis` extension was updated to 3.4.2.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 12](postgresql-extensions.md#postgresql-extensions-12x).

### PostgreSQL version 12.18-R4 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1218R4"></a>

PostgreSQL version 12.18-R4 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 12.18 release](https://www.postgresql.org/docs/release/12.18/).

**New features and enhancements**
+ Fixed potential incompatibilities in the `plv8` extension occurring after database upgrades.

### PostgreSQL version 12.18-R3 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1218R3"></a>

PostgreSQL version 12.18-R3 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 12.18 release.](https://www.postgresql.org/docs/release/12.18/).

**New features and enhancements**
+ Fixed a security exploit issue in `plv8`
+ Fixed a security issue in `pg_repack`

**This version also includes the following extension change:**
+ The `plv8` extension was updated to 3.1.10.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 12](postgresql-extensions.md#postgresql-extensions-12x).

### PostgreSQL version 12.18-R2 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1218R2"></a>

PostgreSQL version 12.18-R2 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 12.18 release.](https://www.postgresql.org/docs/release/12.18/).

**This version includes the following extension changes:**
+ The `pg_partman` extension was updated to version 5.0.1.
+ The `pgactive` extension was updated to version 2.1.3.
+ The `pgtap` extension was updated to version 1.3.2.
+ The `pgvector` extension was updated to version 0.6.2.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 12](postgresql-extensions.md#postgresql-extensions-12x).

### PostgreSQL version 12.18 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1218"></a>

PostgreSQL version 12.18 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 12.18 release.](https://www.postgresql.org/docs/release/12.18/).

**New features and enhancements**
+ Fixed the multisecond latency on the `aws_lambda` calls
+ Fixed a bug preventing the termination of autovacuum

This version includes the following changes:
+ The `orafce` extension was updated to version 4.9.0.
+ The `pg_cron` extension was updated to version 1.6.2.
+ The `pgactive` extension was updated to version 2.1.2.
+ The `pgvector` extension was updated to 0.6.0.
+ The `PostGIS` extension was updated to 3.4.1.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 12](postgresql-extensions.md#postgresql-extensions-12x).

### PostgreSQL version 12.17-R2 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1217R2"></a>

PostgreSQL version 12.17-R2 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 12.17 release](https://www.postgresql.org/docs/release/12.17/).

**New features and enhancements**
+ Fixed a crash in `CatalogCacheComputeHashValue` with `dblink_connect` due to a `Null` or `invalid` connection. 
+ Backported run\$1as\$1owner to RPG 12: 
  +  Backported a security fix for the logical replication apply worker that allows regular table owners to obtain privilege escalation to the subscription owner (an rds\$1superuser). The logical apply worker mitigates the risk by temporarily switching the role from the subscription owner to the table owner during logical apply.

     In the cases of potential security breaches, the fix will break your existing logical replication if any table in the subscription is owned by a regular user, and there are security-restricted operations attached to the table via triggers or default expressions. We recommend that you carefully examine the operations attached to the table if you notice the logical replication is broken after the upgrade. If all of the operations are as expected and you wish to revert the behavior of the logical replication so your application can continue, you can do so by setting the new parameter `rds.run_logical_replication_as_subscription_owner` to true. Be aware that by doing so your logical replication will be vulnerable to the aforementioned security risk again. 
+ Added `rds.run_logical_replication_as_subscription_owner` to the Amazon RDS parameter group. 
+ Fixed the overflow in the `pg_transport` extension. 
+ Removed the unsupported shared libraries from the engine binary. 

### PostgreSQL version 12.17 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1217"></a>

PostgreSQL version 12.17 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 12.17 release](https://www.postgresql.org/docs/release/12.17/).

**New features and enhancements**
+ Fixed a bug where `pg_database_size()` with an invalid OID causes a crash.
+ Added support for the `rds.enable_pgactive` parameter in rdsutils to avoid the warning message.
+ Exposed RDKit guc param `rdkit.morgan_fp_size`.
+ Fixed the bug where setting `TABLESPACE` with `DEFAULT` option in `CREATE` or `ALTER DATABASE` fails.
+ Added the `pgactive` extension.

This version includes the following changes:
+ The `hll` extension was updated to version 2.18
+ The `oracle_fdw` extension was updated to version 2.6.0.
+ The `orafce` extension was updated to version 4.6.1.
+ The `pg_cron` extension was updated to version 1.6.1.
+ The `pg_proctab` extension was updated to version 0.0.10.
+ The `pgtap` extension was updated to version 1.3.1.
+ The `pgvector` extension was updated to version 0.5.1.
+ The `plprofiler` extension was updated to version 4.2.4.
+ The `PostGIS` extension was updated to version 3.4.0.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 12](postgresql-extensions.md#postgresql-extensions-12x).

### PostgreSQL version 12.16-R2 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1216R2"></a>

PostgreSQL version 12.16-R2 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 12.16 release](https://www.postgresql.org/docs/release/12.16/).

**New features and enhancements**
+ The `pgvector` extension was added.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 12](postgresql-extensions.md#postgresql-extensions-12x).

### PostgreSQL version 12.16 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1216"></a>

PostgreSQL version 12.16 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 12.16 release](https://www.postgresql.org/docs/release/12.16/).

**New features and enhancements**
+ A bug was fixed preventing users with the `rds_superuser` role from creating schemas in databases owned by other users.
+ Users with the `rds_superuser` role can now access toast tables in the `pg_toast schema` that are owned by other users.
+ Fixed an issue where `ALTER TABLE` took a ShareLock and may cause deadlocks.

This version also includes the following changes:
+ The `orafce` extension was updated to version 4.3.0.
+ The `pglogical` extension was updated to version 2.4.3.
+ The `PostGIS` extension was updated to version 3.3.3.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 12](postgresql-extensions.md#postgresql-extensions-12x).

### PostgreSQL version 12.15 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1215"></a>

PostgreSQL version 12.15 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 12.15 release](https://www.postgresql.org/docs/release/12.15/).

**New features and enhancements**
+ Fixed a security issue involving `rds_sec_override` which wasn't reset after the intended usage, allowing unauthorized access to restricted tables
+ You can use logical\$1seed\$1lsn to determine the LSN at which a snapshot is taken in order to establish logical replication connection between the source and the restored target database. You can then use logical replication to continuously stream the newer data recorded after the LSN and synchronize the changes from publisher to subscriber. Specifically, it allows the customer to create a logical slot on a source RDS database, take a snapshot, restore the snapshot to a new RDS instance (target), and use the value of logical\$1seed\$1lsn() from the target instance to advance the logical slot on the source instance in order to subscribe the target to the source.

This version also includes the following changes:
+ `compat-collation-for-glibc` was updated to version 1.8
+ `pg_cron` was updated to version 1.5.2
+ `pglogical` was updated to version 2.4.2
+ `PostGIS` was updated to version 3.3.2

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 12](postgresql-extensions.md#postgresql-extensions-12x).

### PostgreSQL version 12.14 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1214"></a>

PostgreSQL version 12.14 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 12.14 release](https://www.postgresql.org/docs/release/12.14/).

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 12](postgresql-extensions.md#postgresql-extensions-12x).

### PostgreSQL version 12.13 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1213"></a>

PostgreSQL version 12.13 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 12.13 release](https://www.postgresql.org/docs/release/12.13/).

New features and enhancements
+ PostgreSQL version 12.13 added support for the `tcn` ("triggered change notification") extension which generates notification events on table changes via a trigger function called `triggered_change_notification`. The tcn extension is useful for applications using drivers which support asynchronous notification. This makes it possible to notify all clients if the contents of a table have been changed, enabling them to take appropriate action in near-real time, such as updating a table cache or information display.

  However, such functionality should only be used with care as it makes all data changes on the table available to all clients (including unprivileged users) through the notification events when they listen on the tcn channel. It is the user’s responsibility to avoid using tcn trigger on a table with sensitive data to avoid information leakage. 

This version includes the following changes:
+ The seg extension version 1.3 is added.
+ The tcn extension version 1.0 is added.
+ The orafce extension is updated to 3.24.
+ The pgaudit extension is updated to 1.4.3.
+ The pgtap extension is updated to 1.2.0.
+ The PostGIS dependency GDAL is updated to 3.4.3.
+ The PostGIS dependency PROJ is updated to 7.0.1.
+ The wal2json extension is updated to 2.5.
+ The aws\$1s3 extension is updated to 1.1.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 12](postgresql-extensions.md#postgresql-extensions-12x).

### PostgreSQL version 12.12 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1212"></a>

PostgreSQL version 12.12 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in [PostgreSQL 12.12](https://www.postgresql.org/docs/release/12.12/).

This version includes the following changes:
+ The [PostGIS](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.PostGIS.html) extension is updated to 3.1.7
+ The [pgRouting](https://docs.pgrouting.org/latest/en/index.html) extension is updated to 3.0.6

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 12](postgresql-extensions.md#postgresql-extensions-12x).

### PostgreSQL version 12.11 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1211"></a>

PostgreSQL version 12.11 is now available on Amazon RDS. This release contains several fixes and improvements that were announced in [PostgreSQL 12.11](https://www.postgresql.org/docs/release/12.11/).

This version also includes the following changes:
+ The [pglogical](https://github.com/2ndQuadrant/pglogical) extension is updated to 2.4.1.

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 12](postgresql-extensions.md#postgresql-extensions-12x).

### PostgreSQL version 12.10 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1210"></a>

PostgreSQL version 12.10 is now available on Amazon RDS. This release contains several fixes and improvements that were announced in [12.10](https://www.postgresql.org/docs/release/12.10/). 

This version also includes the following changes:
+ The [pgaudit](https://github.com/pgaudit/pgaudit/) extension is updated to 1.4.2. For information about using this extension with RDS for PostgreSQL, see [Logging at the session and object level with the pgaudit extension](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.Extensions.html#Appendix.PostgreSQL.CommonDBATasks.pgaudit).
+ The [lo](https://www.postgresql.org/docs/current/lo.html) (large objects) module is updated to version 1.1. 

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 12](postgresql-extensions.md#postgresql-extensions-12x).

### PostgreSQL version 12.9 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version129"></a>

PostgreSQL version 12.9 is now available on Amazon RDS. This release contains several fixes and improvements that were announced in [12.9](https://www.postgresql.org/docs/release/12.9/). 

This version also includes the following changes:
+  The [pg\$1cron](https://github.com/citusdata/pg_cron) extension is updated to 1.4.1
+  The [pg\$1hint\$1plan](https://github.com/ossc-db/pg_hint_plan/) extension is updated to 1.3.7.

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 12](postgresql-extensions.md#postgresql-extensions-12x).

### PostgreSQL version 12.8 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version128"></a>

PostgreSQL version 12.8 is now available on Amazon RDS. This release contains several fixes and improvements that were announced in [12.8](https://www.postgresql.org/docs/release/12.8/). 

This version also includes the following changes:
+ The [pgRouting](https://docs.pgrouting.org/latest/en/index.html) extension is updated to version 3.0.5.
+ The `pglogical` extension is updated to version 2.4.0.
+ The [PostGIS](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.PostGIS.html) extension is updated to version 3.1.4, along with the following related extensions:
  + [address\$1standardizer](https://postgis.net/docs/standardize_address.html)
  + [address\$1standardizer\$1data\$1us](https://postgis.net/docs/standardize_address.html)
  + [PostGIS\$1raster](https://postgis.net/docs/raster.html)
  + [PostGIS\$1tiger\$1geocoder](http://postgis.net/docs/Geocode.html)
  + [PostGIS\$1topology](http://postgis.net/docs/manual-dev/Topology.html)

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 12](postgresql-extensions.md#postgresql-extensions-12x).

### PostgreSQL version 12.7 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version127"></a>

PostgreSQL version 12.7 is now available on Amazon RDS. PostgreSQL version 12.7 contains several improvements that were announced for PostgreSQL release [12.7](https://www.postgresql.org/docs/release/12.7/). 

This version also includes the following changes:
+ The [oracle\$1fdw](https://github.com/laurenz/oracle_fdw) extension version 2.3.0 is added. For more information, see [Working with Oracle databases by using the oracle\$1fdw extension](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.Extensions.foreign-data-wrappers.html#postgresql-oracle-fdw) in the *Amazon RDS User Guide*.
+ The [orafce](https://github.com/orafce/orafce) extension is updated to version 3.15.
+ The [pg\$1cron](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/PostgreSQL_pg_cron.html) extension is updated to version 1.3.1.
+ The [pg\$1partman](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/PostgreSQL_Partitions.html) extension is updated to version 4.5.1.
+ The [PostGIS](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.PostGIS.html) extension is updated to version 3.0.3, along with the following related extensions:
  + [address\$1standardizer](https://postgis.net/docs/standardize_address.html)
  + [address\$1standardizer\$1data\$1us](https://postgis.net/docs/standardize_address.html)
  + [PostGIS\$1raster](https://postgis.net/docs/raster.html)
  + [PostGIS\$1tiger\$1geocoder](http://postgis.net/docs/Geocode.html)
  + [PostGIS\$1topology](http://postgis.net/docs/manual-dev/Topology.html)

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 12](postgresql-extensions.md#postgresql-extensions-12x).

### PostgreSQL version 12.6 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version126"></a>

PostgreSQL version 12.6 is now available on Amazon RDS. PostgreSQL version 12.6 contains several improvements that were announced for PostgreSQL release [12.6](https://www.postgresql.org/docs/release/12.6/). 

This version also includes the following changes:
+ The `aws_lambda` extension version 1.0 is added. For more information, see [ Invoking an AWS Lambda function from an RDS for PostgreSQL DB instance](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/PostgreSQL-Lambda.html) in the *Amazon RDS User Guide*. 
+ The [pg\$1bigm](https://pgbigm.osdn.jp/pg_bigm_en-1-2.html) extension version 1.2 is added.
+ The [PostGIS](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.PostGIS.html) extension is updated to version 3.0.2.

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 12](postgresql-extensions.md#postgresql-extensions-12x).

### PostgreSQL version 12.5 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version125"></a>

PostgreSQL version 12.5 is now available on Amazon RDS. PostgreSQL version 12.5 contains several improvements that were announced for PostgreSQL release [12.5](https://www.postgresql.org/docs/12/release-12-5.html). 

This version also includes the following changes:
+ Added the `pg_partman` extension version 4.4.0. For more information, see [ Managing PostgreSQL partitions with the pg\$1partman extension](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/PostgreSQL_Partitions.html) in the *Amazon RDS User Guide*.
+ Added the `pg_cron` extension version 1.3.0. For more information, see [ Scheduling maintenance with the PostgreSQL pg\$1cron extension](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/PostgreSQL_pg_cron.html) in the *Amazon RDS User Guide*.

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 12](postgresql-extensions.md#postgresql-extensions-12x).

### PostgreSQL version 12.4 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version124"></a>

PostgreSQL version 12.4 is now available on Amazon RDS. PostgreSQL version 12.4 contains several improvements that were announced for PostgreSQL release [12.4](https://www.postgresql.org/docs/12/release-12-4.html). 

This version also includes the following changes:
+ Added the `pg_proctab` extension version 0.0.9
+ Added the `rdkit` extension version 3.8
+ Upgraded the `aws_s3` extension to version 1.1.
+ Upgraded the `pglogical` extension to version 2.3.2
+ Upgraded the `wal2json` extension to version 2.3 

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 12](postgresql-extensions.md#postgresql-extensions-12x).

### PostgreSQL version 12.3 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version123"></a>

PostgreSQL version 12.3 is now available on Amazon RDS. PostgreSQL version 12.3 contains several improvements that were announced for PostgreSQL release [12.3](https://www.postgresql.org/docs/12/release-12-3.html). 

This version also includes the following changes:
+ Upgraded the `pg_hint_plan` extension to version 1.3.5.
+ Upgraded the `pglogical` extension to version 2.3.1.

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 12](postgresql-extensions.md#postgresql-extensions-12x).

### PostgreSQL version 12.2 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version122"></a>

PostgreSQL version 12.2 is now available on Amazon RDS. PostgreSQL version 12.2 contains several improvements that were announced for PostgreSQL releases [12.0](https://www.postgresql.org/docs/12/release-12.html), [12.1](https://www.postgresql.org/docs/12/release-12-1.html), and [12.2](https://www.postgresql.org/docs/12/release-12-2.html). 

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 12](postgresql-extensions.md#postgresql-extensions-12x).

## PostgreSQL 11 versions (Some of these versions have reached the end of standard support or deprecated.)
<a name="postgresql-versions-version11"></a>

**Topics**
+ [PostgreSQL version 11.22-R2 on Amazon RDS (This version has reached the end of standard support.)](#postgresql-versions-version1122R2)
+ [PostgreSQL version 11.22 on Amazon RDS (This version has reached the end of standard support.)](#postgresql-versions-version1122)
+ [PostgreSQL version 11.21 on Amazon RDS (Deprecated)](#postgresql-versions-version1121)
+ [PostgreSQL version 11.20 on Amazon RDS (Deprecated)](#postgresql-versions-version1120)
+ [PostgreSQL version 11.19 on Amazon RDS (Deprecated)](#postgresql-versions-version1119)
+ [PostgreSQL version 11.18 on Amazon RDS (Deprecated)](#postgresql-versions-version1118)
+ [PostgreSQL version 11.17 on Amazon RDS (Deprecated)](#postgresql-versions-version1117)
+ [PostgreSQL version 11.16 on Amazon RDS (Deprecated)](#postgresql-versions-version1116)
+ [PostgreSQL version 11.15 on Amazon RDS (Deprecated)](#postgresql-versions-version1115)
+ [PostgreSQL version 11.14 on Amazon RDS (Deprecated)](#postgresql-versions-version1114)
+ [PostgreSQL version 11.13 on Amazon RDS (Deprecated)](#postgresql-versions-version1113)
+ [PostgreSQL version 11.12 on Amazon RDS (Deprecated)](#postgresql-versions-version1112)
+ [PostgreSQL version 11.11 on Amazon RDS (Deprecated)](#postgresql-versions-version1111)
+ [PostgreSQL version 11.10 on Amazon RDS (Deprecated)](#postgresql-versions-version1110)
+ [PostgreSQL version 11.9 on Amazon RDS (Deprecated)](#postgresql-versions-version119)
+ [PostgreSQL version 11.8 on Amazon RDS (Deprecated)](#postgresql-versions-version118)
+ [PostgreSQL version 11.7 on Amazon RDS (Deprecated)](#postgresql-versions-version117)
+ [PostgreSQL version 11.6 on Amazon RDS (Deprecated)](#postgresql-versions-version116)
+ [PostgreSQL version 11.5 on Amazon RDS (Deprecated)](#postgresql-versions-version115)
+ [PostgreSQL version 11.4 on Amazon RDS (Deprecated)](#postgresql-versions-version114)
+ [PostgreSQL version 11.2 on Amazon RDS (Deprecated)](#postgresql-versions-version112)
+ [PostgreSQL version 11.1 on Amazon RDS (Deprecated)](#postgresql-versions-version111)

### PostgreSQL version 11.22-R2 on Amazon RDS (This version has reached the end of standard support.)
<a name="postgresql-versions-version1122R2"></a>

PostgreSQL version 11.22-R2 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 11.22 release](https://www.postgresql.org/docs/release/11.22/).

**New features and enhancements**
+ Backported run\$1as\$1owner to RPG 11: 
  +  Backported a security fix for the logical replication apply worker that allows regular table owners to obtain privilege escalation to the subscription owner (an rds\$1superuser). The logical apply worker mitigates the risk by temporarily switching the role from the subscription owner to the table owner during logical apply.

     In the cases of potential security breaches, the fix will break your existing logical replication if any table in the subscription is owned by a regular user, and there are security-restricted operations attached to the table via triggers or default expressions. We recommend that you carefully examine the operations attached to the table if you notice the logical replication is broken after the upgrade. If all of the operations are as expected and you wish to revert the behavior of the logical replication so your application can continue, you can do so by setting the new parameter `rds.run_logical_replication_as_subscription_owner` to true. Be aware that by doing so your logical replication will be vulnerable to the aforementioned security risk again. 
+ Added `rds.run_logical_replication_as_subscription_owner` to the Amazon RDS parameter group. 
+ Fixed the overflow in the `pg_transport` extension. 
+ Removed the unsupported shared libraries from the engine binary. 

### PostgreSQL version 11.22 on Amazon RDS (This version has reached the end of standard support.)
<a name="postgresql-versions-version1122"></a>

PostgreSQL version 11.22 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 11.22 release](https://www.postgresql.org/docs/release/11.22/).

**New features and enhancements**
+ Fixed a bug where `pg_database_size()` with an invalid OID causes a crash.
+ Added support for the `rds.enable_pgactive` parameter in rdsutils to avoid the warning message.
+ Exposed RDKit guc param `rdkit.morgan_fp_size`.
+ Fixed the bug where setting `TABLESPACE` with `DEFAULT` option in `CREATE` or `ALTER DATABASE` fails.
+ Added the `pgactive` extension.

This version includes the following changes:
+ The `hll` extension was updated to version 2.18
+ The `orafce` extension was updated to version 4.6.1.
+ The `pg_proctab` extension was updated to version 0.0.10.
+ The `pgtap` extension was updated to version 1.3.1.
+ The `plprofiler` extension was updated to version 4.2.4.

### PostgreSQL version 11.21 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1121"></a>

PostgreSQL version 11.21 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 11.21 release](https://www.postgresql.org/docs/release/11.21/).

**New features and enhancements**
+ A bug was fixed preventing users with the `rds_superuser` role from creating schemas in databases owned by other users.
+ Users with the `rds_superuser` role can now access toast tables in the `pg_toast schema` that are owned by other users.
+ Fixed an issue where `ALTER TABLE` took a ShareLock and may cause deadlocks.

This version also includes the following changes:
+ The `orafce` extension was updated to version 4.3.0.
+ The `pglogical` extension was updated to version 2.4.3.
+ The `PostGIS` extension was updated to version 3.3.3.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 11Extensions for PostgreSQL 11](postgresql-extensions.md#postgresql-extensions-11x).

### PostgreSQL version 11.20 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1120"></a>

PostgreSQL version 11.20 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 11.20 release](https://www.postgresql.org/docs/release/11.20/).

**New features and enhancements**
+ Fixed a security issue involving `rds_sec_override` which wasn't reset after the intended usage, allowing unauthorized access to restricted tables
+ You can use logical\$1seed\$1lsn to determine the LSN at which a snapshot is taken in order to establish logical replication connection between the source and the restored target database. You can then use logical replication to continuously stream the newer data recorded after the LSN and synchronize the changes from publisher to subscriber. Specifically, it allows the customer to create a logical slot on a source RDS database, take a snapshot, restore the snapshot to a new RDS instance (target), and use the value of logical\$1seed\$1lsn() from the target instance to advance the logical slot on the source instance in order to subscribe the target to the source.

This version also includes the following changes:
+ `compat-collation-for-glibc` was updated to version 1.8
+ `pglogical` was updated to version 2.4.2
+ `PostGIS` was updated to version 3.3.2

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 11Extensions for PostgreSQL 11](postgresql-extensions.md#postgresql-extensions-11x).

### PostgreSQL version 11.19 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1119"></a>

PostgreSQL version 11.19 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 11.19 release](https://www.postgresql.org/docs/release/11.19/).

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 11Extensions for PostgreSQL 11](postgresql-extensions.md#postgresql-extensions-11x).

### PostgreSQL version 11.18 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1118"></a>

PostgreSQL version 11.18 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 11.18 release](https://www.postgresql.org/docs/release/11.18/).

New features and enhancements
+ PostgreSQL version 11.18 added support for the `tcn` ("triggered change notification") extension which generates notification events on table changes via a trigger function called `triggered_change_notification`. The tcn extension is useful for applications using drivers which support asynchronous notification. This makes it possible to notify all clients if the contents of a table have been changed, enabling them to take appropriate action in near-real time, such as updating a table cache or information display.

  However, such functionality should only be used with care as it makes all data changes on the table available to all clients (including unprivileged users) through the notification events when they listen on the tcn channel. It is the user’s responsibility to avoid using tcn trigger on a table with sensitive data to avoid information leakage. 

This version includes the following changes:
+ The seg extension version 1.3 is added.
+ The tcn extension version 1.0 is added.
+ The orafce extension is updated to 3.24.
+ The pgaudit extension is updated to 1.3.4.
+ The pgtap extension is updated to 1.2.0.
+ The PostGIS dependency GDAL is updated to 3.4.3.
+ The PostGIS dependency PROJ is updated to 7.0.1.
+ The wal2json extension is updated to 2.5.
+ The aws\$1s3 extension is updated to 1.1.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 11Extensions for PostgreSQL 11](postgresql-extensions.md#postgresql-extensions-11x).

### PostgreSQL version 11.17 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1117"></a>

PostgreSQL version 11.17 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in [PostgreSQL 11.17](https://www.postgresql.org/docs/release/11.17/).

This version includes the following change:
+ The [PostGIS](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.PostGIS.html) extension is updated to 3.1.7

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 11Extensions for PostgreSQL 11](postgresql-extensions.md#postgresql-extensions-11x).

### PostgreSQL version 11.16 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1116"></a>

PostgreSQL version 11.16 is now available on Amazon RDS. This release contains several fixes and improvements that were announced in [PostgreSQL 11.16](https://www.postgresql.org/docs/release/11.16/).

This version also includes the following changes:
+ The [pglogical](https://github.com/2ndQuadrant/pglogical) extension is updated to 2.4.1.
+ The [aws\$1commons](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_PostgreSQL.S3Import.Reference.html#USER_PostgreSQL.S3Import.create_s3_uri) extension is updated to 1.2.

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 11Extensions for PostgreSQL 11](postgresql-extensions.md#postgresql-extensions-11x).

### PostgreSQL version 11.15 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1115"></a>

PostgreSQL version 11.15 is now available on Amazon RDS. PostgreSQL version 11.15 contains several improvements that were announced for PostgreSQL release [11.15](https://www.postgresql.org/docs/release/11.15/). 

This version also includes the following changes:
+ The [pgaudit](https://github.com/pgaudit/pgaudit/) extension is updated to 1.3.3. For information about using this extension with RDS for PostgreSQL, see [Logging at the session and object level with the pgaudit extension](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.Extensions.html#Appendix.PostgreSQL.CommonDBATasks.pgaudit).
+ The [lo](https://www.postgresql.org/docs/current/lo.html) module is updated to version 1.1. 

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 11Extensions for PostgreSQL 11](postgresql-extensions.md#postgresql-extensions-11x).

### PostgreSQL version 11.14 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1114"></a>

PostgreSQL version 11.14 is now available on Amazon RDS. PostgreSQL version 11.14 contains several improvements that were announced for PostgreSQL release [11.14](https://www.postgresql.org/docs/release/11.14/). 

This version also includes the following change:
+  The [pg\$1hint\$1plan](https://github.com/ossc-db/pg_hint_plan/) extension is updated to 1.3.7.

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 11Extensions for PostgreSQL 11](postgresql-extensions.md#postgresql-extensions-11x).

### PostgreSQL version 11.13 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1113"></a>

PostgreSQL version 11.13 is now available on Amazon RDS. PostgreSQL version 11.13 contains several improvements that were announced for PostgreSQL release [11.13](https://www.postgresql.org/docs/release/11.13/). 

This version also includes the following changes:
+ The [pgrouting](https://docs.pgrouting.org/latest/en/index.html) extension is updated to version 2.6.3.
+ The `pglogical` extension is updated to version 2.4.0.
+ The [PostGIS](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.PostGIS.html) extension is updated to version 3.1.4, along with the following related extensions:
  + [address\$1standardizer](https://postgis.net/docs/standardize_address.html)
  + [address\$1standardizer\$1data\$1us](https://postgis.net/docs/standardize_address.html)
  + [PostGIS\$1raster](https://postgis.net/docs/raster.html)
  + [PostGIS\$1tiger\$1geocoder](http://postgis.net/docs/Geocode.html)
  + [PostGIS\$1topology](http://postgis.net/docs/manual-dev/Topology.html)

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 11Extensions for PostgreSQL 11](postgresql-extensions.md#postgresql-extensions-11x).

### PostgreSQL version 11.12 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1112"></a>

PostgreSQL version 11.12 is now available on Amazon RDS. PostgreSQL version 11.12 contains several improvements that were announced for PostgreSQL release [11.12](https://www.postgresql.org/docs/release/11.12/). 

This version also includes the following change:
+ The [orafce](https://github.com/orafce/orafce) extension is updated to version 3.15.

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 11Extensions for PostgreSQL 11](postgresql-extensions.md#postgresql-extensions-11x).

### PostgreSQL version 11.11 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1111"></a>

PostgreSQL version 11.11 is now available on Amazon RDS. PostgreSQL version 11.11 contains several improvements that were announced for PostgreSQL release [11.11](https://www.postgresql.org/docs/release/11.11/). 

This version also added the following new extension:
+ The [pg\$1bigm](https://pgbigm.osdn.jp/pg_bigm_en-1-2.html) extension version 1.2.

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 11Extensions for PostgreSQL 11](postgresql-extensions.md#postgresql-extensions-11x).

### PostgreSQL version 11.10 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1110"></a>

PostgreSQL version 11.10 is now available on Amazon RDS. PostgreSQL version 11.10 contains several improvements that were announced for PostgreSQL release [11.10](https://www.postgresql.org/docs/11/release-11-10.html). 

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 11Extensions for PostgreSQL 11](postgresql-extensions.md#postgresql-extensions-11x).

### PostgreSQL version 11.9 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version119"></a>

PostgreSQL version 11.9 is now available on Amazon RDS. PostgreSQL version 11.9 contains several improvements that were announced for PostgreSQL release [11.9](https://www.postgresql.org/docs/11/release-11-9.html). 

This version also includes the following changes:
+ Added the `aws_s3` extension version 1.1
+ Added the `pg_proctab` extension version 0.0.9
+ Upgraded the `pgaudit` extension to version 1.3.1
+ Upgraded the `pglogical` extension to version 2.2.2
+ Added the `rdkit` extension version 3.8

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 11Extensions for PostgreSQL 11](postgresql-extensions.md#postgresql-extensions-11x).

### PostgreSQL version 11.8 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version118"></a>

PostgreSQL version 11.8 contains several bug fixes for issues in release 11.7. For more information on the fixes in PostgreSQL 11.8, see the [PostgreSQL 11.8 documentation](https://www.postgresql.org/docs/11/release-11-8.html). 

This version also includes the following change:
+ Upgraded the `pg_hint_plan` extension to version 1.3.5.

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 11Extensions for PostgreSQL 11](postgresql-extensions.md#postgresql-extensions-11x).

### PostgreSQL version 11.7 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version117"></a>

PostgreSQL version 11.7 contains several bug fixes for issues in release 11.6. For more information on the fixes in PostgreSQL 11.7, see the [PostgreSQL 11.7 documentation](https://www.postgresql.org/docs/11/release-11-7.html). 

### PostgreSQL version 11.6 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version116"></a>

PostgreSQL version 11.6 contains several bug fixes for issues in release 11.5. For more information on the fixes in PostgreSQL 11.6, see the [PostgreSQL documentation](https://www.postgresql.org/docs/11/release-11-6.html). 

This version also includes the following changes:
+ Upgraded the `pgTAP` extension to version 1.1.0.
+ Added the `plprofiler` extension.
+ Added to `shared_preload_libraries` support for `pg_prewarm` to start automatically.

### PostgreSQL version 11.5 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version115"></a>

PostgreSQL version 11.5 contains several bug fixes for issues in release 11.4. For more information on the fixes in PostgreSQL 11.5, see the [PostgreSQL documentation](https://www.postgresql.org/docs/11/release-11-5.html). 

This version also includes the following changes:
+ A new extension `pg_transport` is added.
+ The extension `aws_s3` has been updated to support virtual-hosted style requests. For more information, see [Amazon S3 path deprecation plan – The rest of the story](https://aws.amazon.com/blogs/aws/amazon-s3-path-deprecation-plan-the-rest-of-the-story/). 
+ The `PostGIS` extension is updated to version 2.5.2.

### PostgreSQL version 11.4 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version114"></a>

This release contains an important security fix and also bug fixes and improvements done by the PostgreSQL community. For more information on the security fix, see the [PostgreSQL community announcement](https://www.postgresql.org/about/news/1949/) and the security fix CVE-2019-10164. 

With this release, the `pg_hint_plan` extension has been updated to version 1.3.4.

For more information on the fixes in PostgreSQL 11.4, see the [PostgreSQL documentation](https://www.postgresql.org/docs/11/release-11-4.html).

### PostgreSQL version 11.2 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version112"></a>

PostgreSQL version 11.2 contains several bug fixes for issues in release 11.1. For more information on the fixes in PostgreSQL 11.2, see the [PostgreSQL documentation](https://www.postgresql.org/docs/11/release-11-2.html).

This version also includes the following changes:
+ A new [pgTAP](https://pgtap.org/) extension version 1.0.
+ Support for Amazon S3 import. For more information, see [ Importing Amazon S3 data into an RDS for PostgreSQL DB instance](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_PostgreSQL.S3Import.html) in the *Amazon RDS User Guide*.
+ Multiple major version upgrade is available to PostgreSQL 11.2 from certain previous PostgreSQL versions. For more information, see [ Choosing a major version upgrade for PostgreSQL](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_UpgradeDBInstance.PostgreSQL.html#USER_UpgradeDBInstance.PostgreSQL.MajorVersion) in the *Amazon RDS User Guide*.

For information on upgrading the engine version for your PostgreSQL DB instance, see [ Upgrading the PostgreSQL DB engine for Amazon RDS](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_UpgradeDBInstance.PostgreSQL.html) in the *Amazon RDS User Guide*. 

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 11Extensions for PostgreSQL 11](postgresql-extensions.md#postgresql-extensions-11x).

### PostgreSQL version 11.1 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version111"></a>

PostgreSQL version 11.1 contains several improvements that were announced in [PostgreSQL 11.1 released\$1](https://www.postgresql.org/about/news/1905/) This version includes SQL stored procedures that enable embedded transactions within a procedure. This version also includes major improvements to partitioning and parallelism and many useful performance improvements. For example, by using a non-null constant for a column default, you can now use an ALTER TABLE command to add a column without causing a table rewrite.

PostgreSQL version 11.1 contains several bug fixes for issues in release 11. For complete details, see the [PostgreSQL release 11.1 documentation](https://www.postgresql.org/docs/11/release-11-1.html). Some changes in this version include the following:
+ Partitioning – Partitioning improvements include support for hash partitioning, enabling creation of a default partition, and dynamic row movement to another partition based on the key column update.
+ Performance – Performance improvements include parallelism while creating indexes, materialized views, hash joins, and sequential scans to make the operations perform better.
+ Stored procedures – SQL stored procedures now added support embedded transactions.
+ Support for Just-In-Time (JIT) capability – RDS for PostgreSQL 11 instances are created with JIT capability, speeding evaluation of expressions. To enable JIT capability, set the `jit` parameter to 1 in the PostgreSQL parameter group for the database. 
+ Segment size – The write-ahead logging (WAL) segment size has been changed from 16 MB to 64 MB.
+ Autovacuum improvements – To provide valuable logging, the parameter `rds.force_autovacuum_logging` is ON by default in conjunction with the `log_autovacuum_min_duration` parameter set to 10 seconds. To increase autovacuum effectiveness, the values for the `autovacuum_max_workers` and `autovacuum_vacuum_cost_limit` parameters are computed based on host memory capacity to provide larger default values.
+ Improved transaction timeout – The parameter `idle_in_transaction_session_timeout` is set to 24 hours. Any session that has been idle more than 24 hours is terminated.
+ Performance metrics – The `pg_stat_statements` extension is included in `shared_preload_libraries` by default. This avoids having to reboot the instance immediately after creation. However, this functionality still requires you to run the statement `CREATE EXTENSION pg_stat_statements;`. Also, `track_io_timing` is enabled by default to add more granular data to `pg_stat_statements`.
+ The tsearch2 extension is no longer supported – If your application uses `tsearch2` functions, update it to use the equivalent functions provided by the core PostgreSQL engine. For more information about the tsearch2 extension, see [PostgreSQL tsearch2](https://www.postgresql.org/docs/9.6/static/tsearch2.html).
+ The chkpass extension is no longer supported – For more information about the `chkpass` extension, see [PostgreSQL chkpass](https://www.postgresql.org/docs/10/chkpass.html).
+ Extension updates for RDS for PostgreSQL 11.1 include the following: 
  + `pgaudit` is updated to 1.3.0
  + `pg_hint_plan` is updated to 1.3.2
  + `pglogical` is updated to 2.2.1
  + `plcoffee` is updated to 2.3.8
  + `plv8` is updated to 2.3.8
  + `PostGIS` is updated to 2.5.1
  + `prefix` is updated to 1.2.8
  + `wal2json` is updated to hash 9e962bad

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 11Extensions for PostgreSQL 11](postgresql-extensions.md#postgresql-extensions-11x).

## PostgreSQL 10 versions (Deprecated)
<a name="postgresql-versions-version10"></a>

**Topics**
+ [PostgreSQL version 10.23 on Amazon RDS (Deprecated)](#postgresql-versions-version1023)
+ [PostgreSQL version 10.22 on Amazon RDS (Deprecated)](#postgresql-versions-version1022)
+ [PostgreSQL version 10.21 on Amazon RDS (Deprecated)](#postgresql-versions-version1021)
+ [PostgreSQL version 10.20 on Amazon RDS (Deprecated)](#postgresql-versions-version1020)
+ [PostgreSQL version 10.19 on Amazon RDS (Deprecated)](#postgresql-versions-version1019)
+ [PostgreSQL version 10.18 on Amazon RDS (Deprecated)](#postgresql-versions-version1018)
+ [PostgreSQL version 10.17 on Amazon RDS (Deprecated)](#postgresql-versions-version1017)
+ [PostgreSQL version 10.16 on Amazon RDS (Deprecated)](#postgresql-versions-version1016)
+ [PostgreSQL version 10.15 on Amazon RDS (Deprecated)](#postgresql-versions-version1015)
+ [PostgreSQL version 10.14 on Amazon RDS (Deprecated)](#postgresql-versions-version1014)
+ [PostgreSQL version 10.13 on Amazon RDS (Deprecated)](#postgresql-versions-version1013)
+ [PostgreSQL version 10.12 on Amazon RDS (Deprecated)](#postgresql-versions-version1012)
+ [PostgreSQL version 10.11 on Amazon RDS (Deprecated)](#postgresql-versions-version1011)
+ [PostgreSQL version 10.10 on Amazon RDS (Deprecated)](#postgresql-versions-version1010)
+ [PostgreSQL version 10.9 on Amazon RDS (Deprecated)](#postgresql-versions-version109)
+ [PostgreSQL version 10.7 on Amazon RDS (Deprecated)](#postgresql-versions-version107)
+ [PostgreSQL version 10.6 on Amazon RDS (Deprecated)](#postgresql-versions-version106)
+ [PostgreSQL version 10.5 on Amazon RDS (Deprecated)](#postgresql-versions-version105)
+ [PostgreSQL version 10.4 on Amazon RDS (Deprecated)](#postgresql-versions-version104)
+ [PostgreSQL version 10.3 on Amazon RDS (Deprecated)](#postgresql-versions-version103)
+ [PostgreSQL version 10.1 on Amazon RDS (Deprecated)](#postgresql-versions-version101)

### PostgreSQL version 10.23 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1023"></a>

PostgreSQL version 10.23 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in the [PostgreSQL 10.23 release](https://www.postgresql.org/docs/release/10.23/).

New features and enhancements
+ PostgreSQL version 10.23 added support for the `tcn` ("triggered change notification") extension which generates notification events on table changes via a trigger function called `triggered_change_notification`. The tcn extension is useful for applications using drivers which support asynchronous notification. This makes it possible to notify all clients if the contents of a table have been changed, enabling them to take appropriate action in near-real time, such as updating a table cache or information display.

  However, such functionality should only be used with care as it makes all data changes on the table available to all clients (including unprivileged users) through the notification events when they listen on the tcn channel. It is the user’s responsibility to avoid using tcn trigger on a table with sensitive data to avoid information leakage. 

This version includes the following changes:
+ The seg extension version 1.1 is added.
+ The tcn extension version 1.0 is added.
+ The orafce extension is updated to 3.24.
+ The pgaudit extension is updated to 1.2.4.
+ PostGIS dependency GDAL is updated to 3.4.3.
+ PostGIS dependency PROJ is updated to 7.0.1.
+ The wal2json extension is updated to 2.5.
+ The aws\$1s3 extension is updated to 1.1.

For version information on all extensions, see [Extensions supported for RDS for PostgreSQL 10](postgresql-extensions.md#postgresql-extensions-101x).

### PostgreSQL version 10.22 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1022"></a>

PostgreSQL version 10.22 is now available on Amazon RDS. This release contains several fixes and improvements for PostgreSQL announced in [PostgreSQL 10.22](https://www.postgresql.org/docs/release/10.22/).

This version includes the following change:
+ The [PostGIS](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.PostGIS.html) extension is updated to 3.1.7

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 10](postgresql-extensions.md#postgresql-extensions-101x).

### PostgreSQL version 10.21 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1021"></a>

PostgreSQL version 10.21 is now available on Amazon RDS. This release contains several fixes and improvements that were announced in [PostgreSQL 10.21](https://www.postgresql.org/docs/release/10.21/).

This version also includes the following changes:
+ The [pglogical](https://github.com/2ndQuadrant/pglogical) extension is updated to 2.4.1.
+ The [aws\$1commons](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_PostgreSQL.S3Import.Reference.html#USER_PostgreSQL.S3Import.create_s3_uri) extension is updated to 1.2.

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 10](postgresql-extensions.md#postgresql-extensions-101x).

### PostgreSQL version 10.20 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1020"></a>

PostgreSQL version 10.20 is now available on Amazon RDS. PostgreSQL version 10.20 contains several improvements that were announced for PostgreSQL release [10.20](https://www.postgresql.org/docs/release/10.20/). 

This version also includes the following changes:
+ The [pgaudit](https://github.com/pgaudit/pgaudit/) extension is updated to 1.2.3. For information about using this extension with RDS for PostgreSQL, see [Logging at the session and object level with the pgaudit extension](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.Extensions.html#Appendix.PostgreSQL.CommonDBATasks.pgaudit) in the *Amazon RDS User Guide*. 
+ The [lo](https://www.postgresql.org/docs/current/lo.html) module is updated to version 1.1. 

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 10](postgresql-extensions.md#postgresql-extensions-101x).

### PostgreSQL version 10.19 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1019"></a>

PostgreSQL version 10.19 is now available on Amazon RDS. PostgreSQL version 10.19 contains several improvements that were announced for PostgreSQL release [10.19](https://www.postgresql.org/docs/release/10.19/). 

This version also includes the following change:
+  The [pg\$1hint\$1plan](https://github.com/ossc-db/pg_hint_plan/) extension is updated to 1.3.6.

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 10](postgresql-extensions.md#postgresql-extensions-101x).

### PostgreSQL version 10.18 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1018"></a>

PostgreSQL version 10.18 is now available on Amazon RDS. PostgreSQL version 10.18 contains several improvements that were announced for PostgreSQL release [10.18](https://www.postgresql.org/docs/release/10.18/). 

This version also includes the following changes:
+ The [pgrouting](https://docs.pgrouting.org/latest/en/index.html) extension is updated to version 2.5.5.
+ The `pglogical` extension is updated to version 2.4.0.
+ The [PostGIS](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.PostGIS.html) extension is updated to version 3.1.4, along with the following related extensions:
  + [address\$1standardizer](https://postgis.net/docs/standardize_address.html)
  + [address\$1standardizer\$1data\$1us](https://postgis.net/docs/standardize_address.html)
  + [PostGIS\$1raster](https://postgis.net/docs/raster.html)
  + [PostGIS\$1tiger\$1geocoder](http://postgis.net/docs/Geocode.html)
  + [PostGIS\$1topology](http://postgis.net/docs/manual-dev/Topology.html)

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 10](postgresql-extensions.md#postgresql-extensions-101x).

### PostgreSQL version 10.17 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1017"></a>

PostgreSQL version 10.17 is now available on Amazon RDS. PostgreSQL version 10.17 contains several improvements that were announced for PostgreSQL release [10.17](https://www.postgresql.org/docs/release/10.17/).

This version also includes the following change:
+ The [orafce](https://github.com/orafce/orafce) extension is updated to version 3.15.

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 10](postgresql-extensions.md#postgresql-extensions-101x).

### PostgreSQL version 10.16 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1016"></a>

PostgreSQL version 10.16 is now available on Amazon RDS. PostgreSQL version 10.16 contains several improvements that were announced for PostgreSQL release [10.16](https://www.postgresql.org/docs/release/10.16/). 

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 10](postgresql-extensions.md#postgresql-extensions-101x).

### PostgreSQL version 10.15 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1015"></a>

PostgreSQL version 10.15 is now available on Amazon RDS. PostgreSQL version 10.15 contains several improvements that were announced for PostgreSQL release [10.15](https://www.postgresql.org/docs/10/release-10-15.html). 

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 10](postgresql-extensions.md#postgresql-extensions-101x).

### PostgreSQL version 10.14 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1014"></a>

PostgreSQL version 10.14 is now available on Amazon RDS. PostgreSQL version 10.14 contains several improvements that were announced for PostgreSQL release [10.14](https://www.postgresql.org/docs/10/release-10-14.html). 

This version also includes the following changes:
+ Added the `aws_s3` extension version 1.1. For more information, see [ Exporting data from an RDS for PostgreSQL DB instance to Amazon S3](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/postgresql-s3-export.html) in the *Amazon RDS User Guide*.
+ Upgraded the `pgaudit` extension to version 1.2.1
+ Upgraded the `pglogical` extension to version 2.2.2
+ Upgraded the `wal2json` extension to version 2.3

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 10](postgresql-extensions.md#postgresql-extensions-101x).

### PostgreSQL version 10.13 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1013"></a>

PostgreSQL version 10.13 contains several bug fixes for issues in release 10.12. For more information on the fixes in PostgreSQL 10.13, see the [PostgreSQL 10.13 documentation](https://www.postgresql.org/docs/10/release-10-13.html). 

This version also includes the following change:
+ Upgraded the `pg_hint_plan` extension to version 1.3.5.

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 10](postgresql-extensions.md#postgresql-extensions-101x).

### PostgreSQL version 10.12 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1012"></a>

PostgreSQL version 10.12 contains several bug fixes for issues in release 10.11. For more information on the fixes in PostgreSQL 10.12, see the [PostgreSQL 10.12 documentation](https://www.postgresql.org/docs/10/release-10-12.html). 

### PostgreSQL version 10.11 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1011"></a>

PostgreSQL version 10.11 contains several bug fixes for issues in release 10.10. For more information on the fixes in PostgreSQL 10.11, see the [PostgreSQL documentation](https://www.postgresql.org/docs/10/release-10-11.html). Changes in this version include the following:
+ Added the `plprofiler` extension.

### PostgreSQL version 10.10 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version1010"></a>

PostgreSQL version 10.10 contains several bug fixes for issues in release 10.9. For more information on the fixes in PostgreSQL 10.10, see the [PostgreSQL documentation](https://www.postgresql.org/docs/10/release-10-10.html). Changes in this version include the following:
+ The `aws_s3` extension is updated to support virtual-hosted style requests. For more information, see [Amazon S3 path deprecation plan – The rest of the story](https://aws.amazon.com/blogs/aws/amazon-s3-path-deprecation-plan-the-rest-of-the-story/). 
+ The `The PostGIS` extension is updated to version 2.5.2.



### PostgreSQL version 10.9 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version109"></a>

This release contains an important security fix and also bug fixes and improvements done by the PostgreSQL community. For more information on the security fix, see the [PostgreSQL community announcement](https://www.postgresql.org/about/news/1949/) and [security fix CVE-2019-10164](https://cve.mitre.org/cgi-bin/cvename.cgi?name=2019-10164). 

With this release, the `pg_hint_plan` extension has been updated to version 1.3.3.

For more information on the fixes in PostgreSQL 10.9, see the [PostgreSQL documentation](https://www.postgresql.org/docs/10/release-10-9.html).

### PostgreSQL version 10.7 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version107"></a>

PostgreSQL version 10.7 contains several bug fixes for issues in release 10.6. For more information on the fixes in 10.7, see the [PostgreSQL documentation](https://www.postgresql.org/docs/10/release-10-7.html).

This version also includes the following changes:
+ Support for Amazon S3 import. For more information, see [ Importing Amazon S3 data into an RDS for PostgreSQL DB instance](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_PostgreSQL.S3Import.html) in the *Amazon RDS User Guide*.
+ Multiple major version upgrade is available to PostgreSQL 10.7 from certain previous PostgreSQL versions. For more information, see [ Choosing a major version upgrade for PostgreSQL](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_UpgradeDBInstance.PostgreSQL.html#USER_UpgradeDBInstance.PostgreSQL.MajorVersion) in the *Amazon RDS User Guide*.

For information on upgrading the engine version for your PostgreSQL DB instance, see [ Upgrading the PostgreSQL DB engine for Amazon RDS](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_UpgradeDBInstance.PostgreSQL.html) in the *Amazon RDS User Guide*. 

### PostgreSQL version 10.6 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version106"></a>

PostgreSQL version 10.6 contains several bug fixes for issues in release 10.5. For more information on the fixes in PostgreSQL 10.6, see the [PostgreSQL documentation](http://www.postgresql.org/docs/10/static/release-10-6.html).

This version also includes the following changes:
+ A new `rds.restrict_password_commands` parameter and a new `rds_password` role have been introduced. When the `rds.restrict_password_commands` parameter is enabled, only users who have the `rds_password` role can make user password and password expiration changes. By restricting password-related operations to a limited set of roles, you can implement policies such as password complexity requirements from the client side. The `rds.restrict_password_commands` parameter is static, so it requires a database restart to change it. For more information, see [ Restricting password management](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.html#Appendix.PostgreSQL.CommonDBATasks.RestrictPasswordMgmt) in the *Amazon RDS User Guide*. 
+ The logical decoding plugin `wal2json` has been updated to commit `9e962ba`. 

For information on upgrading the engine version for your PostgreSQL DB instance, see [ Upgrading the PostgreSQL DB engine for Amazon RDS](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_UpgradeDBInstance.PostgreSQL.html) in the *Amazon RDS User Guide*. 

For the complete list of extensions supported by Amazon RDS for PostgreSQL, see [Extension versions for Amazon RDS for PostgreSQL](postgresql-extensions.md).

**Note**  
Amazon RDS for PostgreSQL has announced the removal of the `tsearch2` extension in the next major release. We encourage customers still using pre-8.3 text search to migrate to the equivalent built-in features. For more information about migrating, see the [PostgreSQL documentation](https://www.postgresql.org/docs/9.6/static/textsearch-migration.html). 

### PostgreSQL version 10.5 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version105"></a>

PostgreSQL version 10.5 contains several bug fixes for issues in release 10.4. For more information on the fixes in 10.5, see the [PostgreSQL documentation](http://www.postgresql.org/docs/10/static/release-10-5.html).

This version also includes the following changes:
+ Support for the `pglogical` extension version 2.2.0. Prerequisites for using this extension are the same as the prerequisites for using logical replication for PostgreSQL as described in [Performing logical replication for Amazon RDS for PostgreSQL](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/CHAP_PostgreSQL.html#PostgreSQL.Concepts.General.FeatureSupport.LogicalReplication) in the *Amazon RDS User Guide*.
+ Support for the `pg_similarity` extension version 1.0.
+ Support for the `pageinspect` extension version 1.6.
+ Support for the `libprotobuf` extension version 1.3.0 for the PostGIS component.
+ An update for the `pg_hint_plan` extension to version 1.3.1.
+ An update for the `wal2json` extension to version 01c5c1e.

For information on upgrading the engine version for your PostgreSQL DB instance, see [ Upgrading the PostgreSQL DB engine for Amazon RDS](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_UpgradeDBInstance.PostgreSQL.html) in the *Amazon RDS User Guide*. 

For the complete list of extensions supported by Amazon RDS for PostgreSQL, see [Extension versions for Amazon RDS for PostgreSQL](postgresql-extensions.md).

### PostgreSQL version 10.4 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version104"></a>

PostgreSQL version 10.4 contains several bug fixes for issues in release 10.3. For more information on the fixes in 10.4, see the [PostgreSQL documentation](http://www.postgresql.org/docs/10/static/release-10-4.html).

This version also includes the following changes:
+ Support for PostgreSQL 10 Logical Replication using the native publication and subscription framework. RDS for PostgreSQL databases can function as both publishers and subscribers. You can specify replication to other PostgreSQL databases at the database-level or at the table-level. With logical replication, the publisher and subscriber databases need not be physically identical (block-to-block) to each other. This allows for use cases such as data consolidation, data distribution, and data replication across different database versions for 10.4 and above. For more information, see [Performing logical replication for Amazon RDS for PostgreSQL](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/CHAP_PostgreSQL.html#PostgreSQL.Concepts.General.FeatureSupport.LogicalReplication) in the *Amazon RDS User Guide*.
+ The temporary file size limitation is user-configurable. You require the **rds\$1superuser** role to modify the `temp_file_limit` parameter.
+ Update of the `GDAL` library, which is used by the PostGIS extension. See [ Managing spatial data with the PostGIS extension](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.PostGIS.html) in the *Amazon RDS User Guide*.
+ Update of the `ip4r` extension to version 2.1.1.
+ Update of the `pg_repack` extension to version 1.4.3. See [ Working with the pg\$1repack extension](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.html#Appendix.PostgreSQL.CommonDBATasks.pg_repack) in the *Amazon RDS User Guide*.
+ Update of the `plv8` extension to version 2.1.2.

For information on upgrading the engine version for your PostgreSQL DB instance, see [ Upgrading the PostgreSQL DB engine for Amazon RDS](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_UpgradeDBInstance.PostgreSQL.html) in the *Amazon RDS User Guide*. 

For the complete list of extensions supported by Amazon RDS for PostgreSQL, see [Extension versions for Amazon RDS for PostgreSQL](postgresql-extensions.md).

**Note**  
The `tsearch2` extension is to be removed in the next major release. We encourage customers still using pre-8.3 text search to migrate to the equivalent built-in features. For more information about migrating, see the [PostgreSQL documentation](https://www.postgresql.org/docs/9.6/static/textsearch-migration.html).

### PostgreSQL version 10.3 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version103"></a>

PostgreSQL version 10.3 contains several bug fixes for issues in release 10. For more information on the fixes in 10.3, see the [PostgreSQL documentation](http://www.postgresql.org/docs/10/static/release-10-3.html).

Version 2.1.0 of plv8 is now available. If you use plv8 and upgrade PostgreSQL to a new plv8 version, you immediately take advantage of the new extension but the catalog metadata doesn't reflect this fact. For the steps to synchronize your catalog metadata with the new version of plv8, see [ Upgrading PLV8 ](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/CHAP_PostgreSQL.html#postgresql-versions-UpgradingPLv8) in the *Amazon RDS User Guide*.

For information on upgrading the engine version for your PostgreSQL DB instance, see [ Upgrading the PostgreSQL DB engine for Amazon RDS](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_UpgradeDBInstance.PostgreSQL.html) in the *Amazon RDS User Guide*. 

For the complete list of extensions supported by Amazon RDS for PostgreSQL, see [Extension versions for Amazon RDS for PostgreSQL](postgresql-extensions.md).

### PostgreSQL version 10.1 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version101"></a>

PostgreSQL version 10.1 contains several bug fixes for issues in release 10. For more information on the fixes in 10.1, see the [PostgreSQL documentation](http://www.postgresql.org/docs/10/static/release-10-1.html) and the [PostgreSQL 10 community announcement](https://www.postgresql.org/about/news/1786/).

For information on upgrading the engine version for your PostgreSQL DB instance, see [ Upgrading the PostgreSQL DB engine for Amazon RDS](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_UpgradeDBInstance.PostgreSQL.html) in the *Amazon RDS User Guide*. 

PostgreSQL version 10.1 includes the following changes: 
+ **Declarative table partitioning** – PostgreSQL 10 adds table partitioning to SQL syntax and native tuple routing. 
+ **Parallel queries** – When you create a new PostgreSQL 10.1 instance, parallel queries are enabled for the `default.postgres10` parameter group. The parameter [max\$1parallel\$1workers\$1per\$1gather](https://www.postgresql.org/docs/10/static/runtime-config-resource.html#GUC-MAX-PARALLEL-WORKERS-PER-GATHER) is set to 2 by default, but you can modify it to support your specific workload requirements.
+ **Support for the international components for unicode (ICU)** – You can use the ICU library to provide explicitly versioned collations. Amazon RDS for PostgreSQL 10.1 is compiled with ICU version 60.2. For more information about ICU implementation in PostgreSQL, see [Collation support](https://www.postgresql.org/docs/10/static/collation.html).
+ **Huge pages** – Huge pages is a feature of the Linux kernel that uses multiple page size capabilities of modern hardware architectures. Amazon RDS for PostgreSQL supports huge pages with a global configuration parameter. When you create a new PostgreSQL 10.1 instance with RDS, the `huge_pages` parameter is set to `"on"` for the `default.postgres10` parameter group. You can modify this setting to support your specific workload requirements. 
+ Extension **plv8 update** – plv8 is a procedural language that you can use to write functions in JavaScript that you can then call from SQL. This release of PostgreSQL supports version 2.1.0 of plv8.
+ **Renaming of xlog and location** – In PostgreSQL version 10 the abbreviation "xlog" has changed to "wal", and the term "location" has changed to "lsn". For more information, see [ https://www.postgresql.org/docs/10/static/release-10.html\$1id-1.11.6.8.4](https://www.postgresql.org/docs/10/static/release-10.html#id-1.11.6.8.4). 
+ **tsearch2 extension** – Amazon RDS continues to provide the `tsearch2` extension in PostgreSQL version 10, but is to remove it in the next major version release. If your application uses tsearch2 functions update it to use the equivalent functions the core engine provides. For more information see [tsearch2](https://www.postgresql.org/docs/9.6/static/tsearch2.html) in the PostgreSQL documentation.

For the complete list of extensions supported by Amazon RDS for PostgreSQL, see [Extension versions for Amazon RDS for PostgreSQL](postgresql-extensions.md).

## PostgreSQL 9.6 versions (Deprecated)
<a name="postgresql-versions-version96"></a>

**Topics**
+ [PostgreSQL version 9.6.24 on Amazon RDS (Deprecated)](#postgresql-versions-version9624)
+ [PostgreSQL version 9.6.23 on Amazon RDS (Deprecated)](#postgresql-versions-version9623)
+ [PostgreSQL version 9.6.22 on Amazon RDS (Deprecated)](#postgresql-versions-version9622)
+ [PostgreSQL version 9.6.21 on Amazon RDS (Deprecated)](#postgresql-versions-version9621)
+ [PostgreSQL version 9.6.20 on Amazon RDS (Deprecated)](#postgresql-versions-version9620)
+ [PostgreSQL version 9.6.19 on Amazon RDS (Deprecated)](#postgresql-versions-version9619)
+ [PostgreSQL version 9.6.18 on Amazon RDS (Deprecated)](#postgresql-versions-version9618)
+ [PostgreSQL version 9.6.17 on Amazon RDS (Deprecated)](#postgresql-versions-version9617)
+ [PostgreSQL version 9.6.16 on Amazon RDS (Deprecated)](#postgresql-versions-version9616)
+ [PostgreSQL version 9.6.15 on Amazon RDS (Deprecated)](#postgresql-versions-version9615)
+ [PostgreSQL version 9.6.14 on Amazon RDS (Deprecated)](#postgresql-versions-version9614)
+ [PostgreSQL version 9.6.12 on Amazon RDS (Deprecated)](#postgresql-versions-version9612)
+ [PostgreSQL version 9.6.11 on Amazon RDS (Deprecated)](#postgresql-versions-version9611)
+ [PostgreSQL version 9.6.10 on Amazon RDS (Deprecated)](#postgresql-versions-version9610)
+ [PostgreSQL version 9.6.9 on Amazon RDS (Deprecated)](#postgresql-versions-version969)
+ [PostgreSQL version 9.6.8 on Amazon RDS (Deprecated)](#postgresql-versions-version968)
+ [PostgreSQL version 9.6.6 on Amazon RDS (Deprecated)](#postgresql-versions-version966)
+ [PostgreSQL version 9.6.5 on Amazon RDS (Deprecated)](#postgresql-versions-version965)
+ [PostgreSQL version 9.6.3 on Amazon RDS (Deprecated)](#postgresql-versions-version963)
+ [PostgreSQL version 9.6.2 on Amazon RDS (Deprecated)](#postgresql-versions-version962)
+ [PostgreSQL version 9.6.1 on Amazon RDS (Deprecated)](#postgresql-versions-version961)

### PostgreSQL version 9.6.24 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version9624"></a>

PostgreSQL version 9.6.24 is now available on Amazon RDS. PostgreSQL version 9.6.24 contains several improvements that were announced for PostgreSQL release [9.6.24](https://www.postgresql.org/docs/release/9.6.24/). 

This version also includes the following change:
+  The [pg\$1hint\$1plan](https://github.com/ossc-db/pg_hint_plan/) extension is updated to 1.2.7.

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 9.6](postgresql-extensions.md#postgresql-extensions-96x).

### PostgreSQL version 9.6.23 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version9623"></a>

PostgreSQL version 9.6.23 is now available on Amazon RDS. PostgreSQL version 9.6.23 contains several improvements that were announced for PostgreSQL release [9.6.23](https://www.postgresql.org/docs/release/9.6.23/). 

This version also includes the following changes:
+ The `pglogical` extension is updated to version 2.4.0.
+ The [PostGIS](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.PostGIS.html) extension is updated to version 2.5.5, along with the following related extensions:
  + [address\$1standardizer](https://postgis.net/docs/standardize_address.html)
  + [address\$1standardizer\$1data\$1us](https://postgis.net/docs/standardize_address.html)
  + [PostGIS\$1tiger\$1geocoder](http://postgis.net/docs/Geocode.html)
  + [PostGIS\$1topology](http://postgis.net/docs/manual-dev/Topology.html)

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 9.6](postgresql-extensions.md#postgresql-extensions-96x).

### PostgreSQL version 9.6.22 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version9622"></a>

PostgreSQL version 9.6.22 is now available on Amazon RDS. PostgreSQL version 9.6.22 contains several improvements that were announced for PostgreSQL release [9.6.22](https://www.postgresql.org/docs/release/9.6.22/). 

This version also includes the following change:
+ The [orafce](https://github.com/orafce/orafce) extension is updated to version 3.15.

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 9.6](postgresql-extensions.md#postgresql-extensions-96x).

### PostgreSQL version 9.6.21 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version9621"></a>

PostgreSQL version 9.6.21 is now available on Amazon RDS. PostgreSQL version 9.6.21 contains several improvements that were announced for PostgreSQL release [9.6.21](https://www.postgresql.org/docs/release/9.6.21/). 

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 9.6](postgresql-extensions.md#postgresql-extensions-96x).

### PostgreSQL version 9.6.20 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version9620"></a>

PostgreSQL version 9.6.20 is now available on Amazon RDS. PostgreSQL version 9.6.20 contains several improvements that were announced for PostgreSQL release [9.6.20](https://www.postgresql.org/docs/9.6/release-9-6-20.html). 

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 9.6](postgresql-extensions.md#postgresql-extensions-96x).

### PostgreSQL version 9.6.19 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version9619"></a>

PostgreSQL version 9.6.19 is now available on Amazon RDS. PostgreSQL version 9.6.19 contains several improvements that were announced for PostgreSQL release [9.6.19](https://www.postgresql.org/docs/9.6/release-9-6-19.html). 

This version also includes the following changes:
+ Upgraded the `pgaudit` extension to version 1.1.2
+ Upgraded the `pglogical` extension to version 2.2.2
+ Upgraded the `wal2json` extension to version 2.3

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 9.6](postgresql-extensions.md#postgresql-extensions-96x).

### PostgreSQL version 9.6.18 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version9618"></a>

PostgreSQL version 9.6.18 contains several bug fixes for issues in release 9.6.17. For more information on the fixes in PostgreSQL 9.6.18, see the [PostgreSQL 9.6.18 documentation](https://www.postgresql.org/docs/9.6/release-9-6-18.html). 

This version also includes the following change:
+ Upgraded the `pg_hint_plan` extension to version 1.2.6.

For information on all extensions, see [Extensions supported for RDS for PostgreSQL 9.6](postgresql-extensions.md#postgresql-extensions-96x).

### PostgreSQL version 9.6.17 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version9617"></a>

PostgreSQL version 9.6.17 contains several bug fixes for issues in release 9.6.16. For more information on the fixes in PostgreSQL 9.6.17, see the [PostgreSQL 9.6.17 documentation](https://www.postgresql.org/docs/9.6/release-9-6-17.html). 

### PostgreSQL version 9.6.16 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version9616"></a>

PostgreSQL version 9.6.16 contains several bug fixes for issues in release 9.6.15. For more information on the fixes in PostgreSQL 9.6.16, see the [PostgreSQL documentation](https://www.postgresql.org/docs/9.6/release-9-6-16.html). 

### PostgreSQL version 9.6.15 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version9615"></a>

PostgreSQL version 9.6.15 contains several bug fixes for issues in release 9.6.14. For more information on the fixes in PostgreSQL 9.6.15, see the [PostgreSQL documentation](https://www.postgresql.org/docs/9.6/release-9-6-15.html). 

The `PostGIS` extension is updated to version 2.5.2.

### PostgreSQL version 9.6.14 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version9614"></a>

This release contains bug fixes and improvements done by the PostgreSQL community. 

With this release, the `pg_hint_plan` extension has been updated to version 1.2.5.

For more information on the fixes in PostgreSQL 9.6.14, see the [PostgreSQL documentation](https://www.postgresql.org/docs/9.6/release-9-6-14.html).

### PostgreSQL version 9.6.12 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version9612"></a>

PostgreSQL version 9.6.12 contains several bug fixes for issues in release 9.6.11. For more information on the fixes in 9.6.12, see the [PostgreSQL documentation](http://www.postgresql.org/docs/9.6/release-9-6-12.html). 

For information on upgrading the engine version for your PostgreSQL DB instance, see [ Upgrading the PostgreSQL DB engine for Amazon RDS](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_UpgradeDBInstance.PostgreSQL.html) in the *Amazon RDS User Guide*. 

### PostgreSQL version 9.6.11 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version9611"></a>

PostgreSQL version 9.6.11 contains several bug fixes for issues in release 9.6.10. For more information on the fixes in PostgreSQL 9.6.11, see the [PostgreSQL documentation](http://www.postgresql.org/docs/9.6/static/release-9-6-11.html). For information on upgrading the engine version for your PostgreSQL DB instance, see [ Upgrading the PostgreSQL DB engine for Amazon RDS](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_UpgradeDBInstance.PostgreSQL.html) in the *Amazon RDS User Guide*. 

With this version, the logical decoding plugin `wal2json` has been updated to commit `9e962ba`. 

For the complete list of extensions supported by Amazon RDS for PostgreSQL, see [Extension versions for Amazon RDS for PostgreSQL](postgresql-extensions.md).

### PostgreSQL version 9.6.10 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version9610"></a>

PostgreSQL version 9.6.10 contains several bug fixes for issues in release 9.6.9. For more information on the fixes in 9.6.10, see the [PostgreSQL documentation](http://www.postgresql.org/docs/current/static/release-9-6-10.html). 

This version includes the following changes: 
+ Support for the `pglogical` extension version 2.2.0. Prerequisites for using this extension are the same as the prerequisites for using logical replication for PostgreSQL as described in [Performing logical replication for Amazon RDS for PostgreSQL](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/CHAP_PostgreSQL.html#PostgreSQL.Concepts.General.FeatureSupport.LogicalReplication) in the *Amazon RDS User Guide*. 
+ Support for the `pg_similarity` extension version 2.2.0.
+ An update for the `wal2json` extension to version 01c5c1e.
+ An update for the `pg_hint_plan` extension to version 1.2.3.

For information on upgrading the engine version for your PostgreSQL DB instance, see [ Upgrading the PostgreSQL DB engine for Amazon RDS](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_UpgradeDBInstance.PostgreSQL.html) in the *Amazon RDS User Guide*. 

For the complete list of extensions supported by Amazon RDS for PostgreSQL, see [Extension versions for Amazon RDS for PostgreSQL](postgresql-extensions.md).

### PostgreSQL version 9.6.9 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version969"></a>

PostgreSQL version 9.6.9 contains several bug fixes for issues in release 9.6.8. For more information on the fixes in 9.6.9, see the [PostgreSQL documentation](http://www.postgresql.org/docs/9.6/static/release-9-6-9.html). For information on upgrading the engine version for your PostgreSQL DB instance, see [ Upgrading the PostgreSQL DB engine for Amazon RDS](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_UpgradeDBInstance.PostgreSQL.html) in the *Amazon RDS User Guide*. 

This version includes the following changes: 
+ The temporary file size limitation is user-configurable. You require the **rds\$1superuser** role to modify the `temp_file_limit` parameter.
+ Update of the `GDAL` library, which is used by the PostGIS extension. See [ Working with the PostGIS extension](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.PostGIS.html) in the *Amazon RDS User Guide*.
+ Update of the `ip4r` extension to version 2.1.1.
+ Update of the `pgaudit` extension to version 1.1.1. See [Logging at the session and object level with the pgaudit extension](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.Extensions.html#Appendix.PostgreSQL.CommonDBATasks.pgaudit) in the *Amazon RDS User Guide*. 

  Update of the `pg_repack` extension to version 1.4.3. See [ Working with the pg\$1repack extension](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.html#Appendix.PostgreSQL.CommonDBATasks.pg_repack) in the *Amazon RDS User Guide*.
+ Update of the `plv8` extension to version 2.1.2.

For the complete list of extensions supported by Amazon RDS for PostgreSQL, see [Extension versions for Amazon RDS for PostgreSQL](postgresql-extensions.md).

### PostgreSQL version 9.6.8 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version968"></a>

PostgreSQL version 9.6.8 contains several bug fixes for issues in release 9.6.6. For more information on the fixes in 9.6.8, see the [PostgreSQL documentation](http://www.postgresql.org/docs/9.6/static/release-9-6-8.html). For information on upgrading the engine version for your PostgreSQL DB instance, see [ Upgrading the PostgreSQL DB engine for Amazon RDS](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_UpgradeDBInstance.PostgreSQL.html) in the *Amazon RDS User Guide*. 

For the complete list of extensions supported by Amazon RDS for PostgreSQL, see [Extension versions for Amazon RDS for PostgreSQL](postgresql-extensions.md).

### PostgreSQL version 9.6.6 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version966"></a>

PostgreSQL version 9.6.6 contains several bug fixes for issues in release 9.6.5. For more information on the fixes in 9.6.6, see the [PostgreSQL documentation](http://www.postgresql.org/docs/9.6/static/release-9-6-6.html). For information on upgrading the engine version for your PostgreSQL DB instance, see [ Upgrading the PostgreSQL DB engine for Amazon RDS](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_UpgradeDBInstance.PostgreSQL.html) in the *Amazon RDS User Guide*. 

This version includes the following features: 
+ Supports the `orafce` extension, version 3.6.1. This extension contains functions that are native to commercial databases, and can be helpful if you are porting a commercial database to PostgreSQL. For more information about using `orafce` with Amazon RDS, see [Using functions from the orafce extension](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.Extensions.html#Appendix.PostgreSQL.CommonDBATasks.orafce)in the *Amazon RDS User Guide*.
+ Supports the `prefix` extension, version 1.2.6. This extension provides an operator for text prefix searches. For more information about `prefix`, see the [prefix project on GitHub](https://github.com/dimitri/prefix).
+ Supports version 2.3.4 of PostGIS, version 2.4.2 of [pgrouting](https://docs.pgrouting.org/latest/en/index.html), and an updated version of wal2json.

For the complete list of extensions supported by Amazon RDS for PostgreSQL, see [Extension versions for Amazon RDS for PostgreSQL](postgresql-extensions.md).

### PostgreSQL version 9.6.5 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version965"></a>

PostgreSQL version 9.6.5 contains several bug fixes for issues in release 9.6.4. For more information on the fixes in 9.6.5, see the [PostgreSQL documentation](http://www.postgresql.org/docs/9.6/static/release-9-6-5.html). For information on upgrading the engine version for your PostgreSQL DB instance, see [ Upgrading the PostgreSQL DB engine for Amazon RDS](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_UpgradeDBInstance.PostgreSQL.html) in the *Amazon RDS User Guide*. 

This version also includes support for the [pgrouting](http://pgrouting.org/), [postgresql-hll](https://github.com/citusdata/postgresql-hll/releases/tag/v2.10.2) extensions, and the [decoder\$1raw](https://github.com/michaelpq/pg_plugins/tree/master/decoder_raw) optional extension.

For the complete list of extensions supported by Amazon RDS for PostgreSQL, see [Extension versions for Amazon RDS for PostgreSQL](postgresql-extensions.md).

### PostgreSQL version 9.6.3 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version963"></a>

PostgreSQL version 9.6.3 contains several new features and bug fixes. This version includes the following features: 
+ Supports the extension `pg_repack` version 1.4.0. You can use this extension to remove bloat from tables and indexes. For more information on using `pg_repack` with Amazon RDS, see [Reducing bloat in tables and indexes with the pg\$1repack extension](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.Extensions.html#Appendix.PostgreSQL.CommonDBATasks.pg_repack) in the *Amazon RDS User Guide*.
+ Supports the extension `pgaudit` version 1.1.0. This extension provides detailed session and object audit logging. For more information on using pgaudit with Amazon RDS, see [ Logging at the session and object level with the pgaudit extension](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.html#Appendix.PostgreSQL.CommonDBATasks.pgaudit) in the *Amazon RDS User Guide*.
+ Supports `wal2json`, an output plugin for logical decoding.
+ Supports the `auto_explain` extension. You can use this extension to log execution plans of slow statements automatically. The following example shows how to use `auto_explain` from within an Amazon RDS PostgreSQL session:

  ```
  LOAD '$libdir/plugins/auto_explain';
  ```

  For more information on using `auto_explain`, see the [ PostgreSQL documentation](https://www.postgresql.org/docs/current/static/auto-explain.html). 

### PostgreSQL version 9.6.2 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version962"></a>

PostgreSQL version 9.6.2 contains several new features and bug fixes. The new version also includes the following extension versions: 
+ PostGIS version 2.3.2
+ [ pg\$1freespacemap](https://www.postgresql.org/docs/current/static/pgfreespacemap.html) version 1.1–Provides a way to examine the free space map (FSM). This extension provides an overloaded function called pg\$1freespace. The functions show the value recorded in the free space map for a given page, or for all pages in the relation.
+ [pg\$1hint\$1plan](http://pghintplan.osdn.jp/pg_hint_plan.html) version 1.1.3– Provides control of execution plans by using hinting phrases at the beginning of SQL statements.
+ log\$1fdw version 1.0–Using this extension from Amazon RDS, you can load and query your database engine log from within the database. For more information, see [Using the log\$1fdw extension to access the DB log using SQL](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.Extensions.foreign-data-wrappers.html#CHAP_PostgreSQL.Extensions.log_fdw) in the *Amazon RDS User Guide*.
+ With this version release, you can now edit the `max_worker_processes` parameter in a DB parameter group. 

PostgreSQL version 9.6.2 on Amazon RDS also supports altering enum values. For more information, see [Custom data types and enumerations with RDS for PostgreSQL](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/CHAP_PostgreSQL.html#PostgreSQL.Concepts.General.FeatureSupport.AlterEnum) in the *Amazon RDS User Guide*.

 For more information on the fixes in 9.6.2, see the [PostgreSQL documentation](http://www.postgresql.org/docs/9.6/static/release-9-6-2.html). For information on upgrading the engine version for your PostgreSQL DB instance, see [ Upgrading the PostgreSQL DB engine for Amazon RDS](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_UpgradeDBInstance.PostgreSQL.html) in the *Amazon RDS User Guide*. 

### PostgreSQL version 9.6.1 on Amazon RDS (Deprecated)
<a name="postgresql-versions-version961"></a>

PostgreSQL version 9.6.1 contains several new features and improvements. For more information about the fixes and improvements in PostgreSQL 9.6.1, see the [PostgreSQL documentation](https://www.postgresql.org/docs/9.6/static/release-9-6-1.html). For information on upgrading the engine version for your PostgreSQL DB instance, see [ Upgrading the PostgreSQL DB engine for Amazon RDS](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_UpgradeDBInstance.PostgreSQL.html) in the *Amazon RDS User Guide*. For information about performing parallel queries and phrase searching using Amazon RDS for PostgreSQL 9.6.1, see the [AWS Database Blog](https://aws.amazon.com/blogs/database/performing-parallel-queries-and-phrase-searching-with-amazon-rds-for-postgresql-9-6-1/).

PostgreSQL version 9.6.1 includes the following changes:
+ **Parallel query processing**: Supports parallel processing of large read-only queries, allowing sequential scans, hash joins, nested loops, and aggregates to be run in parallel. By default, parallel query processing isn't enabled. To enable parallel query processing, set the parameter `max_parallel_workers_per_gather` to a value larger than zero.
+ **Updated postgres\$1fdw extension**: Supports remote JOINs, SORTs, UPDATEs, and DELETE operations.
+ **plv8 update**: Provides version 1.5.3 of the plv8 language.
+ **PostGIS version update**: Supports POSTGIS="2.3.0 r15146" GEOS="3.5.0-CAPI-1.9.0 r4084" PROJ="Rel. 4.9.2, 08 September 2015" GDAL="GDAL 2.1.1, released 2016/07/07" LIBXML="2.9.1" LIBJSON="0.12" RASTER
+ **Vacuum improvement**: Avoids scanning pages unnecessarily during vacuum freeze operations.
+ **Full-text search support for phrases**: Supports the ability to specify a phrase-search query in tsquery input using the new operators <-> and <N>.
+ **Two new extensions are supported**:
  + `bloom`, an index access method based on [Bloom filters](http://en.wikipedia.org/wiki/Bloom_filter)
  + `pg_visibility`, which provides a means for examining the visibility map and page-level visibility information of a table.
+ With the release of version 9.6.2, you can now edit the `max_worker_processes` parameter in a PostgreSQL version 9.6.1 DB parameter group.

## Deprecation of PostgreSQL 10
<a name="postgresql-versions-version10-deprecation-notice"></a>

On April 17, 2023, Amazon RDS deprecated PostgreSQL 10. For more information, see [Deprecation of PostgreSQL version 10](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/CHAP_PostgreSQL.html#PostgreSQL.Concepts.General.DBVersions.Deprecation10) in the *Amazon RDS User Guide*. We strongly recommend that you take action as soon as possible and upgrade your PostgreSQL databases running on major version 10 to a later major version, such as version 14. For information about how to do so, see [Upgrading the PostgreSQL DB engine for Amazon RDS](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_UpgradeDBInstance.PostgreSQL.html) in the *Amazon RDS User Guide*. 

## Deprecation of PostgreSQL 9.6
<a name="postgresql-versions-version96-deprecation-notice"></a>

On March 31, 2022, Amazon RDS deprecated PostgreSQL 9.6. This extended the previously announced date of January 18, 2022 to April 26, 2022. For more information, see [Deprecation of PostgreSQL version 9.6](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/CHAP_PostgreSQL.html#PostgreSQL.Concepts.General.DBVersions.Deprecation96) in the *Amazon RDS User Guide*. We strongly recommend that you upgrade all your PostgreSQL 9.6 DB instances to PostgreSQL 12 or higher as soon as possible. For information about how to do so, see [Upgrading the PostgreSQL DB engine for Amazon RDS](https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_UpgradeDBInstance.PostgreSQL.html) in the *Amazon RDS User Guide*. 