• AWS News Blog AWS Weekly Roundup: Claude Sonnet 4.6 in Amazon Bedrock, Kiro in GovCloud Regions, new Agent Plugins, and more (February 23, 2026) | Last week, my team met many developers at Developer Week in San Jose. • My colleague, Vinicius Senger delivered a great keynote about renascent software-a new way of building and evolving applications where humans and AI collaborate as co-developers using Kiro. • Other colleagues, Du’An Lightfoot, Elizabeth Fuentes, Laura Salinas, and Sandhya Subramani spoke about building and deploying production-ready AI agents. • Everyone stayed to ask and hear the questions related to agent memory, multi-agent patterns, meta-tooling and hooks. • It was interesting how many developers were actually building agents. • We are continuing to meet developers and hear their feedback at third-party developer conferences.

Article Summaries:

  • AWS announced several key updates in its February 23, 2026 roundup. The Claude Sonnet 4.6 model is now available on Amazon Bedrock, offering high‑performance coding and agent tasks at lower cost. Amazon EC2 introduced Hpc8a instances powered by 5th‑gen AMD EPYC processors, delivering up to 40 % higher performance and 300 Gbps networking for HPC workloads. SageMaker added inference support for custom Nova models with configurable scaling. Nested virtualization on EC2 now supports KVM and Hyper‑V, and Aurora will apply server‑side encryption by default to new clusters. Additionally, Kiro is available in AWS GovCloud (US) regions, and open‑source Agent Plugins extend coding agents with AWS deployment capabilities.
  • AWS announced several key updates in its February 23, 2026 roundup. The Claude Sonnet 4.6 model is now available on Amazon Bedrock, offering high‑performance coding and agent tasks at lower cost. New EC2 Hpc8a instances, powered by 5th‑gen AMD EPYC processors, deliver up to 40 % more performance and 300 Gbps networking for HPC workloads. SageMaker Inference now supports custom Amazon Nova models with configurable instance types and scaling. AWS also introduced nested virtualization on EC2, default server‑side encryption for Aurora, and expanded Kiro AI agent support to GovCloud (US) regions. Finally, open‑source Agent Plugins enable coding agents to deploy directly to AWS.

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