2.57.2 2026-10-21

AWS CRT-based S3 Client

• Bugfixes

  • Improved the UnsupportedOperationException message thrown by presignedUrlExtension() on the AWS CRT-based S3 client to explain that presigned URL downloads are not supported and to suggest using a non-CRT S3AsyncClient, such as one built with S3AsyncClient.builder().multipartEnabled(true).

AWS DevOps Agent Service

• Features

  • Adds support for Microsoft Teams as a notification service. Associations can now be created and updated with a Microsoft Teams team and channel configuration using the DevOps Agent API and SDKs.

AWS Elemental MediaConvert

• Features

  • Adds AV1 CBR rate control and scene change detection. New sliding window peak bitrate setting for all codecs. DASH adaptation set grouping update. Option to disable the AV1 perceptual quality filter. Support for vertical (portrait) AV1 encoding.

AWS Network Firewall

• Features

  • Adds support for Network Firewall Resolved IP validation.

AWS SDK for Java v2

• Features

  • Updated endpoint and partition metadata.
  • Upgrade Jackson (jackson-core, jackson-databind, jackson-dataformat-cbor) to 2.21.8

AWS Step Functions

• Features

  • Release minor updates to API model

Amazon Connect Service

• Features

  • Added support for AWS-managed security profiles.

Amazon DataZone

• Features

  • Added custom designations support with new CRUD APIs. The designation field in project membership and policy grant APIs supports a new enum for custom designations. These APIs also support a new field for custom designation id.

Amazon Elastic Compute Cloud

• Features

  • Adds new response fields to DescribeInstanceStatus and Network Insights analysis results.

Amazon HealthLake

• Features

  • Update the UpdateProfileWithAgent API to return a streaming response to provide more frequent updates on what the agent is doing.

Amazon Lex Model Building V2

• Features

  • Adds support for Assisted NLU - Dialog Manager mode allowing usage of LLMs as the default NLU system and dialog management

Amazon Lightsail

• Features

  • This release adds support for metrics related to system-disk performance.

Amazon Polly

• Features

  • Added support for the new voices - Kenneth (en-US), Nate (en-US), Tina (de-DE), Carlos (es-US), Carolina (pt-BR), Leo (pt-BR), Curtis (en-AU), Kiara (en-IN), Arjun (en-IN) and Hyunduk (ko-KR). They are available as a Generative voices only.

Amazon QuickSight

• Features

  • Adds support for SharePoint and OneDrive two-legged OAuth certificate credentials and Google Workspace service account credentials when creating data sources

Auto Scaling

• Features

  • EC2 Auto Scaling now supports account settings, letting you manage account-level configuration for Auto Scaling.

Redshift Data API Service

• Features

  • Add Redshift QueryUUID field to DescribeStatement response

S3 Transfer Manager

• Bugfixes

  • Fixed how S3TransferManager#resumeDownloadFile handles an object that changes during a paused download when using the Java-based S3 async client.

• Documentations

  • Corrected the S3TransferManager Javadoc: downloadFileWithPresignedUrl and downloadWithPresignedUrl do not currently support AWS CRT-based S3 clients, and S3TransferManager.create() falls back to a multipart-enabled S3AsyncClient when AWS CRT is not on the classpath.