【AWSアップデート #194】 AWS KMSがすべてのKMSキーの最終使用状況を追跡可能に ほか

■ AWS KMS now tracks last usage of all KMS keys - AWS https://aws.amazon.com/about-aws/whats-new/2026/04/aws-kms-tracks-last-usage-kms-keys/ ■ Amazon Bedrock now offers OpenAI models, Codex, and Managed Agents (Limited Preview) - AWS https://aws.amazon.com/about-aws/whats-new/2026/04/bedrock-openai-models-codex-managed-agents/ ■ AWS Lambda adds support for Ruby 4.0 https://aws.amazon.com/about-aws/whats-new/2026/04/aws-lambda-adds-ruby/ ■ Amazon CloudFront now supports invalidation by cache tag - AWS https://aws.amazon.com/about-aws/whats-new/2026/04/cloudfront-invalidation-cache-tag/ ■ AWS Neuron announces the Neuron Agentic Development capabilities https://aws.amazon.com/about-aws/whats-new/2026/04/announcing-neuron-agentic-development/