2.39.5 2025-11-26

AWS Compute Optimizer

• Features

  • Compute Optimizer now identifies idle NAT Gateway resources for cost optimization based on traffic patterns and backup configuration analysis. Access recommendations via the GetIdleRecommendations API.

Amazon Bedrock Runtime

• Features

  • Bedrock Runtime Reserved Service Support

Apache5 HTTP Client (Preview)

• Bugfixes

  • Fix bug where Basic proxy authentication fails with credentials not found.
  • Fix bug where preemptive Basic authentication was not honored for proxies. Similar to fix for Apache 4.x in #6333.

Cost Optimization Hub

• Features

  • This release enables AWS Cost Optimization Hub to show cost optimization recommendations for NAT Gateway.

s3

• Features

  • Add CRT shouldStream config as CRT_MEMORY_BUFFER_DISABLED SDK advanced client option