2026.05.21

最近 SAMARI で要約された技術ニュースをお届けします。Show Notes GitHub Copilot cloud agent でコードレビュー提案を簡単に適用 - Easily apply Copilot code review feedback with Copilot cloud agent (https://github.blog/changelog/2026-05-19-easily-apply-copilot-code-review-feedback-with-copilot-cloud-agent) Copilot ChatでセマンティックなIssue検索 - Semantic issue search in Copilot Chat (https://github.blog/changelog/2026-05-20-semantic-issue-search-in-copilot-chat) VS Codeでタスクに応じて自動モデル選択 - Auto model selection now routes based on your task in VS Code (https://github.blog/changelog/2026-05-20-auto-model-selection-now-routes-based-on-your-task-in-vs-code) Copilot（Web）で利用可能なモデルを更新 - Updates to available models in Copilot on web (https://github.blog/changelog/2026-05-20-updates-to-available-models-in-copilot-on-web) Ruby CVE-2026-46727：getaddrinfoのタイムアウト処理で解放済みメモリ参照 - CVE-2026-46727: Use-after-free in pthread-based getaddrinfo timeout handler (https://www.ruby-lang.org/en/news/2026/05/20/getaddrinfo-cve-2026-46727/) Ruby 4.0.5 リリース - Ruby 4.0.5 Released (https://www.ruby-lang.org/en/news/2026/05/20/ruby-4-0-5-released/) AWS SageMaker HyperPod、推論ワークロードのデータキャプチャをサポート - Amazon SageMaker HyperPod now supports data capture for inference workloads (https://aws.amazon.com/about-aws/whats-new/2026/05/amazon-sagemaker-hyperpod-data-capture) イスタンブール（トルコ）でAWS Local Zoneを一般提供開始 - Announcing the general availability of a new AWS Local Zone in Istanbul, Türkiye (https://aws.amazon.com/about-aws/whats-new/2026/05/aws-local-zones-istanbul-turkiye/) AWS Billing Conductor、請求転送インベントリで可視性を改善 - AWS Billing Conductor Improves Account Visibility with Billing Transfer Inventory (https://aws.amazon.com/about-aws/whats-new/2026/05/aws-billing-conductor-billing-transfer/) AWS、DynamoDB互換のオープンソースアダプタ「ExtendDB」を発表 - AWS announces ExtendDB, an open source DynamoDB-compatible adapter (https://aws.amazon.com/about-aws/whats-new/2026/05/aws-extenddb-dynamodb/) Security Hub Extendedが21のパートナーソリューションに拡張（9カテゴリ） - Security Hub Extended expands to 21 curated partner solutions across 9 categories (https://aws.amazon.com/about-aws/whats-new/2026/05/aws-security-hub-extended/) Google Cloud Sterling OMSをAlloyDBへ移行して大幅コスト削減 - Urban Outfitters achieves major cost savings by moving Sterling OMS to AlloyDB for PostgreSQL (https://cloud.google.com/blog/products/databases/urban-outfitters-moves-sterling-oms-to-alloydb-for-postgresql/) オンデバイスLLMを120超の端末でベンチマーク、Model Explorerでデバッグ - Benchmark and optimize LLMs on-device with AI Edge Portal (https://cloud.google.com/blog/products/ai-machine-learning/benchmark-llms-on-device-with-ai-edge-portal/) GKEのAgent Sandboxが一般提供開始、Agent Substrateを発表 - Agent Sandbox on GKE is now available for everyone, and a first look at Agent Substrate (https://cloud.google.com/blog/products/containers-kubernetes/bringing-you-agent-sandbox-on-gke-and-agent-substrate/) Googleの分散エージェント実行ランタイム「Agent Executor」 - Introducing Agent Executor, Google’s distributed Agent Runtime (https://cloud.google.com/blog/products/ai-machine-learning/agent-executor-googles-distributed-agent-runtime/) Django Django 6.1 alpha 1 が公開されました - Django 6.1 alpha 1 released (https://www.djangoproject.com/weblog/2026/may/20/django-61-alpha-1-released/) BGM: yuhei komatsu (https://dova-s.jp/_contents/author/profile446.html) 音声: Google Cloud Text-to-Speech AI (https://cloud.google.com/text-to-speech)