Document History

Amazon S3 now offers a new archive storage class, DEEP_ARCHIVE, for storing rarely accessed objects. For more information, see Storage Classes in the Amazon Simple Storage Service User Guide.

March 27, 2019

Amazon S3 now supports the Apache Parquet (Parquet) format in addition to the Apache optimized row columnar (ORC) and comma-separated values (CSV) file formats for inventory output files. For more information, see Amazon S3 Inventory in the Amazon Simple Storage Service User Guide.

The following APIs were updated accordingly:

December 04, 2018

The Amazon S3 PUT and related operations now support specifying GLACIER as the storage class when creating objects. Previously, you had to transition to the GLACIER storage class from another Amazon S3 storage class. For more information about the GLACIER storage class, see Storage Classes in the Amazon Simple Storage Service User Guide.

The following APIs were updated accordingly:

November 26, 2018

The following APIs were updated for S3 Object Lock:

Amazon S3 now offers a new storage class named INTELLIGENT_TIERING that is for storing data that has changing or unknown access patterns. For more information, see Storage Classes in the Amazon Simple Storage Service User Guide.

The following APIs were updated accordingly:

November 26, 2018

Amazon S3 now includes the ability to block public access to buckets and objects on a per-bucket or account-wide basis. For more information, see Using Amazon S3 Block Public Access in the Amazon Simple Storage Service User Guide.

November 15, 2018

In a CRR rule configuration, you can specify an object filter to choose a subset of objects to apply the rule to. Previously, you could filter only on an object key prefix. In this release, you can filter on an object key prefix, one or more object tags, or both. For more information, see Replication Configuration Overview in the Amazon Simple Storage Service User Guide.

The following APIs are updated accordingly:

September 19, 2018

Amazon S3 now offers a new storage class, ONEZONE_IA (IA, for infrequent access) for storing objects. For more information, see Storage Classes in the Amazon Simple Storage Service User Guide.

April 4, 2018

Amazon S3 Select is now generally available. This feature retrieves object content based on an SQL expression. For more information, see Selecting Content from Objects in the Amazon Simple Storage Service User Guide.

The following API has been updated:

April 4, 2018

Amazon S3 is now available in the Asia Pacific (Osaka-Local) Region. For more information about Amazon S3 Regions and endpoints, see Regions and Endpoints in the AWS General Reference.

February 12, 2018

Amazon S3 is now available in the Europe (Paris) Region. For more information about Amazon S3 regions and endpoints, see Regions and Endpoints in the AWS General Reference.

December 18, 2017

Amazon S3 is now available in the China (Ningxia) Region. For more information about Amazon S3 regions and endpoints, see Regions and Endpoints in the AWS General Reference.

December 11, 2017

Amazon S3 now supports querying S3 Glacier data archives with SQL. For more information, see Querying Archived Objects in the Amazon Simple Storage Service User Guide.

The following API changed:

November 29, 2017

Amazon S3 now supports the SELECT Object Content functionality as part of a Preview program. This feature retrieves object content based on an SQL expression.

The following API has been added:

November 29, 2017

Amazon S3 now supports the Apache optimized row columnar (ORC) format in addition to comma-separated values (CSV) file format for inventory output files. For more information, see Amazon S3 Inventory in the Amazon Simple Storage Service User Guide.

The following APIs are updated accordingly:

November 17, 2017

Amazon S3 default encryption provides a way to set the default encryption behavior for an S3 bucket. You can set default encryption on a bucket so that all objects are encrypted when they are stored in the bucket. The objects are encrypted using server-side encryption with either Amazon S3-managed keys (SSE-S3) or AWS KMS-managed keys (SSE-KMS). For more information, see Amazon S3 Default Encryption for S3 Buckets in the Amazon Simple Storage Service User Guide.

The following APIs are updated accordingly:

November 06, 2017

Amazon S3 now supports including encryption status in Amazon S3 inventory so you can see how your objects are encrypted at rest for compliance auditing or other purposes. You can also configure to encrypt Amazon S3 inventory with server-side encryption (SSE) or SSE-KMS so that all inventory files are encrypted accordingly. For more information, see Amazon S3 Inventory in the Amazon Simple Storage Service User Guide.

The following APIs are updated accordingly:

November 06, 2017

Cross-region replication (CRR) now supports the following:

The following APIs are updated accordingly:

November 06, 2017

Amazon S3 is now available in the Europe (London) Region. For more information about Amazon S3 regions and endpoints, see Regions and Endpoints in the AWS General Reference.

December 13, 2016

Amazon S3 is now available in the Canada (Central) Region. For more information about Amazon S3 regions and endpoints, see Regions and Endpoints in the AWS General Reference.

December 8, 2016

Amazon S3 now supports object tagging. The following new API operations support object tagging:

In addition, other API operations are updated to support object tagging. For more information, see Object Tagging in the Amazon Simple Storage Service User Guide.

November 29, 2016

Amazon S3 now supports tag-based filtering in lifecycle configuration. You can now specify a lifecycle rule, in which you can specify a key prefix, one or more object tags, or a combination of both, to select a subset of objects to which the lifecycle rule applies. For more information, see Object Lifecycle Managementin the Amazon Simple Storage Service User Guide.

Amazon S3 now supports Expedited and Bulk data retrievals in addition to Standard retrievals when restoring objects archived to S3 Glacier.

November 29, 2016

Amazon S3 now supports CloudWatch metrics for requests made on buckets. The following new API operations support configuring request metrics:

For more information, see Monitoring Metrics with Amazon CloudWatch in the Amazon Simple Storage Service User Guide.

November 29, 2016

Amazon S3 now supports storage inventory. Amazon S3 inventory provides a flat-file output of your objects and their corresponding metadata on a daily or weekly basis for an S3 bucket or a shared prefix (that is, objects that have names that begin with a common string).

The following new API operations are for storage inventory:

For more information, see Amazon S3 Storage Inventory in the Amazon Simple Storage Service User Guide.

November 29, 2016

The following new API operations are for storage class analysis:

For more information, see Amazon S3 Analytics – Storage Class Analysis in the Amazon Simple Storage Service User Guide.

November 29, 2016

Amazon S3 now supports Expedited and Bulk data retrievals in addition to Standard retrievals when restoring objects archived to S3 Glacier. For more information, see Restoring Archived Objects in the Amazon Simple Storage Service User Guide.

November 21, 2016

Amazon S3 is now available in the US East (Ohio) Region. For more information about Amazon S3 regions and endpoints, see Regions and Endpoints in the AWS General Reference.

October 17, 2016

Amazon S3 is now available in the Asia Pacific (Mumbai) region. For more information about Amazon S3 regions and endpoints, see Regions and Endpoints in the AWS General Reference.

June 27, 2016

May 4, 2016

Amazon S3 Transfer Acceleration enables fast, easy, and secure transfers of files over long distances between your client and an S3 bucket. Transfer Acceleration takes advantage of Amazon CloudFront’s globally distributed edge locations.

For more information, see Transfer Acceleration in the Amazon Simple Storage Service User Guide.

The following new API operations support Transfer Acceleration: GetBucketAccelerateConfiguration and PutBucketAccelerateConfiguration.

April 19, 2016

Lifecycle configuration expiration action now allows you to direct Amazon S3 to remove expired object delete markers in versioned bucket. For more information, see Elements to Describe Lifecycle Actions in the Amazon Simple Storage Service User Guide.

March 16, 2016

Bucket lifecycle configuration now supports the AbortIncompleteMultipartUpload action that you can use to direct Amazon S3 to cancel multipart uploads that don't complete within a specified number of days after being initiated. When a multipart upload becomes eligible for an abort operation, Amazon S3 deletes any uploaded parts and cancels the multipart upload.

The following API operations have been updated to support the new action:

For conceptual information, see the following topics in the Amazon Simple Storage Service User Guide:

March 16, 2016

January 15, 2016

Amazon S3 is now available in the Asia Pacific (Seoul) region. For more information about Amazon S3 regions and endpoints, see Regions and Endpoints in the AWS General Reference.

December 11, 2015

Amazon S3 now offers a new storage class, STANDARD_IA (IA, for infrequent access) for storing objects. This storage class is optimized for long-lived and less frequently accessed data. For more information, see Storage Classes in the Amazon Simple Storage Service User Guide.

Lifecycle configuration feature updates now allow you to transition objects to the STANDARD_IA storage class. For more information, see Object Lifecycle Management in the Amazon Simple Storage Service User Guide.

Previously, the cross-region replication feature used the storage class of the source object for object replicas. Now, when you configure cross-region replication you can specify a storage class for the object replica created in the destination bucket. For more information, see Cross-Region Replication in the Amazon Simple Storage Service User Guide.

September 16, 2015

Amazon S3 event notifications have been updated to add notifications when objects are deleted and to add filtering on object names with prefix and suffix matching. For the relevant API operations, see PutBucketNotificationConfiguration, and GetBucketNotificationConfiguration. For more information, see Configuring Amazon S3 Event Notifications in the Amazon Simple Storage Service User Guide.

July 28, 2015

Amazon S3 now supports cross-region replication. Cross-region replication is the automatic, asynchronous copying of objects across buckets in different AWS Regions. For the relevant API operations, see PutBucketReplication, GetBucketReplication and DeleteBucketReplication. For more information, see Enabling Cross-Region Replication in the Amazon Simple Storage Service User Guide.

March 24, 2015

Amazon S3 now supports new event types and destinations in a bucket notification configuration. Prior to this release, Amazon S3 supported only the s3:ReducedRedundancyLostObject event type and an Amazon SNS topic as the destination. For more information about the new event types, go to Setting Up Notification of Bucket Events in the Amazon Simple Storage Service User Guide. For the relevant API operations, see PutBucketNotificationConfiguration and GetBucketNotificationConfiguration.

November 13, 2014

Amazon S3 now supports server-side encryption using AWS Key Management Service (KMS). With server-side encryption with KMS, you manage the envelope key through KMS, and Amazon S3 calls KMS to access the envelope key within the permissions you set.

For more information about server-side encryption with KMS, see Protecting Data Using Server-Side Encryption with AWS Key Management Service in the Amazon Simple Storage Service User Guide.

The following Amazon S3 REST API operations support headers related to KMS.

Amazon S3 is now available in the Europe (Frankfurt) Region region.

Amazon S3 now supports server-side encryption using customer-provided encryption keys (SSE-C). Server-side encryption enables you to request Amazon S3 to encrypt your data at rest. When using SSE-C, Amazon S3 encrypts your objects with the custom encryption keys that you provide. Since Amazon S3 performs the encryption for you, you get the benefits of using your own encryption keys without the cost of writing or executing your own encryption code.

For more information about SSE-C, go to Server-Side Encryption (Using Customer-Provided Encryption Keys) in the Amazon Simple Storage Service User Guide.

The following Amazon S3 REST API operations support headers related to SSE-C.

Prior to this release lifecycle configuration was supported only on nonversioned buckets. Now you can configure lifecycle on both the nonversioned and versioning-enabled buckets.

For more information, go to Object Lifecycle Management in the Amazon Simple Storage Service User Guide.

The related API operations, see PutBucketLifecycleConfiguration, GetBucketLifecycleConfiguration, and DeleteBucketLifecycle.

Amazon S3 now supports Signature Version 4 (SigV4) in all regions, the latest specification for how to sign and authenticate AWS requests.

For more information, see Authenticating Requests (AWS Signature Version 4).

The following Amazon S3 list actions now support encoding-type optional request parameter.

ListObjects

ListObjectVersions

ListMultipartUploads

ListParts

An object key can contain any Unicode character; however, the XML 1.0 parser cannot parse some characters, such as characters with an ASCII value from 0 to 10. For characters that are not supported in XML 1.0, you can add this parameter to request that Amazon S3 encode the keys in the response.

SOAP support over HTTP is deprecated, but it is still available over HTTPS. New Amazon S3 features will not be supported for SOAP. We recommend that you use either the REST API or the AWS SDKs.

Amazon S3 now supports hosting static websites at the root domain. Visitors to your website can access your site from their browser without specifying "www" in the web address (e.g., "example.com"). Many customers already host static websites on Amazon S3 that are accessible from a "www" subdomain (e.g., "www.example.com"). Previously, to support root domain access, you needed to run your own web server to proxy root domain requests from browsers to your website on Amazon S3. Running a web server to proxy requests introduces additional costs, operational burden, and another potential point of failure. Now, you can take advantage of the high availability and durability of Amazon S3 for both "www" and root domain addresses.

For an example walkthrough, go to Example: Setting Up a Static Website Using a Custom Domain in the Amazon Simple Storage Service User Guide. For conceptual information, go to Hosting Static Websites on Amazon S3 in the Amazon Simple Storage Service User Guide.

Amazon S3 now supports a storage option that enables you to utilize Amazon Glacier's low-cost storage service for data archival. To archive objects, you define archival rules identifying objects and a timeline when you want Amazon S3 to archive these objects to S3 Glacier. You can easily set the rules on a bucket using the Amazon S3 console or programmatically using the Amazon S3 API or AWS SDKs.

To support data archival rules, Amazon S3 lifecycle management API has been updated. For more information, see PutBucketLifecycleConfiguration.

After you archive objects, you must first restore a copy before you can access the data. Amazon S3 offers a new API for you to initiate a restore. For more information, see RestoreObject.

For conceptual information, go to Object Lifecycle Management in the Amazon Simple Storage Service User Guide.

For a bucket that is configured as a website, Amazon S3 now supports redirecting a request for an object to another object in the same bucket or to an external URL. You can configure redirect by adding the x-amz-website-redirect-location metadata to the object.

The object upload API operations PutObject, CreateMultipartUpload, and POST Object allow you to configure the x-amz-website-redirect-location object metadata.

For conceptual information, go to How to Configure Website Page Redirects in the Amazon Simple Storage Service User Guide.

Amazon S3 now supports Multi-Object Delete API that enables you to delete multiple objects in a single request. With this feature, you can remove large numbers of objects from Amazon S3 more quickly than using multiple individual DELETE requests.

For more information about the API see, see DeleteObjects.

For conceptual information about the delete operation, see Deleting Objects in the Amazon Simple Storage Service User Guide.

Server-side encryption support

Amazon S3 now supports server-side encryption. It enables you to request Amazon S3 to encrypt your data at rest, that is, encrypt your object data when Amazon S3 writes your data to disks in its data centers. To request server-side encryption, you must add the x-amz-server-side-encryption header to your request. To learn more about data encryption, go to Using Data Encryption in the Amazon Simple Storage Service User Guide.

Multipart Upload API extended to enable copying objects up to 5 TB

Prior to this release, Amazon S3 API supported copying objects (see CopyObject) of up to 5 GB in size. To enable copying objects larger than 5 GB, Amazon S3 extends the multipart upload API with a new operation, Upload Part (Copy). You can use this multipart upload operation to copy objects up to 5 TB in size. For conceptual information about multipart upload, go to Uploading Objects Using Multipart Upload in the Amazon Simple Storage Service User Guide. To learn more about the new API, see UploadPartCopy.

SOAP API calls over HTTP disabled

To increase security, SOAP API calls over HTTP are disabled. Authenticated and anonymous SOAP requests must be sent to Amazon S3 using SSL.

Support for hosting static websites in Amazon S3

Amazon S3 introduces enhanced support for hosting static websites. This includes support for index documents and custom error documents. When using these features, requests to the root of your bucket or a subfolder (e.g., http://mywebsite.com/subfolder) returns your index document instead of the list of objects in your bucket. If an error is encountered, Amazon S3 returns your custom error message instead of an Amazon S3 error message. For API information to configure your bucket as a website, see the following sections:

For conceptual overview, go to Hosting Websites on Amazon S3 in the Amazon Simple Storage Service User Guide.

Response Header API Support

The GET Object REST API now allows you to change the response headers of the REST GET Object request for each request. That is, you can alter object metadata in the response, without altering the object itself. For more information, see GetObject.

Amazon S3 has increased the maximum size of an object you can store in an S3 bucket from 5 GB to 5 TB. If you are using the REST API you can upload objects of up to 5 GB size in a single PUT operation. For larger objects, you must use the Multipart Upload REST API to upload objects in parts. For conceptual information, go to Uploading Objects Using Multipart Upload in the Amazon Simple Storage Service User Guide. For multipart upload API information, see CreateMultipartUpload, UploadPart, CompleteMultipartUpload, ListParts, and ListMultipartUploads

Multipart upload

Multipart upload enables faster, more flexible uploads into Amazon S3. It allows you to upload a single object as a set of parts. For conceptual information, go to Uploading Objects Using Multipart Upload in the Amazon Simple Storage Service User Guide. For multipart upload API information, see CreateMultipartUpload, UploadPart, CompleteMultipartUpload, ListParts, and ListMultipartUploads