2.38.9 2025-11-18

AWS Backup

• Features

  • AWS Backup now supports a low-cost warm storage tier for Amazon S3 backup data.

AWS CloudFormation

• Features

  • New CloudFormation DescribeEvents API with operation ID tracking and failure filtering capabilities to quickly identify root causes of deployment failures. Also, a DeploymentMode parameter for the CreateChangeSet API that enables creation of drift-aware change sets for safe drift management.

AWS Identity and Access Management

• Features

  • Added the AssociateDelegationRequest, GetDelegationRequest, AcceptDelegationRequest, RejectDelegatonRequest, ListDelegationRequests, UpdateDelegationRequest, SendDelegationToken and GetHumanReadableSummary APIs for the IAM temporary delegation feature.

AWS Resource Groups Tagging API

• Features

  • Add support for new ListRequiredTags API used to retrieve the required tags specified in a customer's effective tag policy.

AWS SDK for Java v2

• Features

  • Updated endpoint and partition metadata.

• Bugfixes

  • Fix an issue with AsyncResponseTransformer.toBlockingInputStream() where read() operations on the stream can hang if there if the transformer encounters an error while the stream is being read. Fixes #5755.

AWS Storage Gateway

• Features

  • Adds support for European Sovereign Cloud ARNs in Storage Gateway API parameters.

AWS WAFV2

• Features

  • AssociateWebACL, UpdateWebACL and PutLoggingConfiguration will now throw WAFFeatureNotIncludedInPricingPlanException when the request contains a feature that is not included in the CloudFront pricing plan of the WebACL.

Amazon Bedrock Runtime

• Features

  • Amazon Bedrock Runtime Service Tier Support Launch

Amazon CloudWatch Logs

• Features

  • CloudWatch Logs updates: Added capability to setup a recurring schedule for log insights queries. Logs introduced Scheduled Queries (managed through Create/Update/Get/Delete/List/History Scheduled Query APIs). For more information, see CloudWatch Logs API documentation.

Amazon Connect Service

• Features

  • This release added support for ring timer configuration for campaign calls.

Amazon Elastic Compute Cloud

• Features

  • AWS Site-to-Site VPN now supports VPN Concentrator, a new feature that enables customers to connect multiple low-bandwidth sites connections through a single attachment, simplifying multi-site connectivity for distributed enterprises.

Auto Scaling

• Features

  • This release adds the new LaunchInstances API, which can launch instances synchronously in an AutoScaling group. The API also returns instances info and launch error back immediately.

Managed Streaming for Kafka

• Features

  • Amazon MSK adds three new APIs, ListTopics, DescribeTopic, and DescribeTopicPartitions for viewing Kafka topics in your MSK clusters.