# RDS version numbers in RDS for MySQL
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RDS version numbers use either the `major.minor.patch` or the `major.minor.patch.YYYYMMDD` naming scheme. Amazon RDS Extended Support versions use the *minor-RDS.YYYYMMDD* minor version naming scheme.

An RDS patch version includes important bug fixes added to a minor version after its release. An RDS date version (*YYYYMMDD*) is a security patch. A security patch doesn't include any fixes that might change the engine's behavior. For information about RDS Extended Support version numbering, see [Amazon RDS Extended Support version naming](extended-support-versions.md#extended-support-naming).

You can find out the RDS version number of your RDS for MySQL database with the following SQL query:

```
mysql> select mysql.rds_version();
```

For example, querying an RDS for MySQL 8.0.34 database returns the following output:

```
+---------------------+
| mysql.rds_version() |
+---------------------+
| 8.0.34.R2.20231201  |
+---------------------+
1 row in set (0.01 sec)
```