Claude Sonnet 4.6 in Amazon Bedrock, Kiro in GovCloud Regions, new Agent Plugins, and more

AWS highlights Claude Sonnet 4.6 now in Amazon Bedrock, new agent plugins, Kiro available in AWS GovCloud regions, and other launches like EC2 Hpc8a and SageMaker Inference updates.

AWS Weekly Roundup covers key announcements from Feb 23, 2026. Anthropic’s Claude Sonnet 4.6 model is now available in Amazon Bedrock with high performance for coding, agents, and professional work at lower cost.

AWS added new EC2 Hpc8a instances with improved performance and expanded SageMaker Inference for custom Nova models. Nested virtualization support arrived for EC2.

Kiro, an AI development tool, is supported in AWS GovCloud regions for regulated workloads. AWS also introduced open-source Agent Plugins that extend agent skills for deployment tasks. The post highlights community content on agent memory, tooling, and best practices.

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