v1.6.66

[1.6.66] - 04/29/2026

Features

• (account) Adds AccountState in the response for the GetAccountInformation API. Each state represents a specific phase in the account lifecycle. Use this information to manage account access, automate workflows, or trigger actions based on account state changes.
• (bedrockagentcore) Adds batch evaluation for running evaluators against multiple agent sessions with server-side orchestration, AI-powered recommendations for optimizing system prompts and tool descriptions, and AB testing with controlled traffic splitting and statistical significance reporting
• (bedrockagentcorecontrol) Adds configuration bundles for versioned, immutable agent configuration snapshots with branch-based lineage
• (cloudfront) Amazon CloudFront now supports cache tag. Tag objects via response headers and invalidate all matching objects in a single request, replacing manual URL tracking and broad wildcards.
• (deadline) Adds support for rtx-pro-server-6000 GPU accelerator for service-managed fleets.
• (gamelift) Amazon GameLift Servers adds a new DescribeContainerGroupPortMappings API for container fleets, making it easy to discover which connection ports map to your container ports without needing to remotely access the compute.
• (mediapackagev2) This feature adds configuration for specifying SCTE marker handling and allow greater control over generated manifest and segment URIs
• (transfer) This launch will increase the limits for customers to list the contents from the remote directories from 10k to 200k.
• (workspacesweb) Allow admins to configure IPv6 ranges on IP Access Settings.

Documentation

• (ecr) Removes support for registry policy V1