2.33.0 2025-08-29

AWS SDK for Java v2

• Features

  • Add AsyncRequestBody#splitCloseable API that returns a Publisher of ClosableAsyncRequestBody
  • Introduce BufferedSplittableAsyncRequestBody that enables splitting into retryable sub-request bodies.
  • Introduce CloseableAsyncRequestBody interface that extends both AsyncRequestBody and SdkAutoClosable interfaces
  • Updated endpoint and partition metadata.

• Bugfixes

  • Improve Sigv4 signing performance, particularly for RPC protocols

• Deprecations

  • Deprecate AsyncRequestBody#split in favor of AsyncRequestBody#splitCloseable that takes the same input but returns SdkPublisher<CloseableAsyncRequestBody>

AWS X-Ray

• Features

  • AWS X-Ray Features: Support Sampling Rate Boost On Anomaly

Amazon Bedrock Runtime

• Features

  • Fixed stop sequence limit for converse API.

Amazon Elastic Compute Cloud

• Features

  • Release shows new route types such as filtered and advertisement.