2026.02.20

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 シークレットスキャン：拡張メタデータチェックの改善 - Secret scanning improvements to extended metadata checks (https://github.blog/changelog/2026-02-18-secret-scanning-improvements-to-extended-metadata-checks) Copilot coding agent、コード参照に対応 - Copilot coding agent supports code referencing (https://github.blog/changelog/2026-02-18-copilot-coding-agent-supports-code-referencing) Copilot coding agentをWindowsプロジェクトで使う - Use Copilot coding agent with Windows projects (https://github.blog/changelog/2026-02-18-use-copilot-coding-agent-with-windows-projects) Copilot使用状況APIにプルリク関連メトリクスが追加されました - Pull request throughput and time to merge available in Copilot usage metrics API (https://github.blog/changelog/2026-02-19-pull-request-throughput-and-time-to-merge-available-in-copilot-usage-metrics-api) AIが開発者の選択を再形成 - How AI is reshaping developer choice (and Octoverse data proves it) (https://github.blog/ai-and-ml/generative-ai/how-ai-is-reshaping-developer-choice-and-octoverse-data-proves-it/) Gemini 3.1 ProがGitHub Copilotで公開プレビューに - Gemini 3.1 Pro is now in public preview in GitHub Copilot (https://github.blog/changelog/2026-02-19-gemini-3-1-pro-is-now-in-public-preview-in-github-copilot) AWS ACM、公開証明書の有効期間を198日に短縮 - AWS Certificate Manager updates default certificate validity to comply with new guidelines (https://aws.amazon.com/about-aws/whats-new/2026/02/aws-certificate-manager-updates-default/) M8i-flexインスタンスが追加リージョンで利用可能に - Amazon EC2 M8i-flex instances are now available in additional AWS regions (https://aws.amazon.com/about-aws/whats-new/2026/02/amazon-ec2-m8i-flex-instances-FRA-ICN-KUL-NRT-SIN-YUL-region/) Aurora DSQLがGo/Python/Node.js向けコネクタを公開 - Aurora DSQL launches new Go, Python, and Node.js connectors that simplify IAM authentication (https://aws.amazon.com/about-aws/whats-new/2026/02/aurora-dsql-launches-go-python-nodejs-connectors) GitLab Agentic AIと企業制御：Self-Hosted Duo Agent PlatformとBYOM - Agentic AI, enterprise control: Self-hosted Duo Agent Platform and BYOM (https://about.gitlab.com/blog/agentic-ai-enterprise-control-self-hosted-duo-agent-platform-and-byom/) 更新されたGitLab Security Dashboardで脆弱性修復を追跡 - Track vulnerability remediation with the updated GitLab Security Dashboard (https://about.gitlab.com/blog/track-vulnerability-remediation-with-the-updated-gitlab-security-dashboard/) Rust RustがGoogle Summer of Code 2026に参加 - Rust participates in Google Summer of Code 2026 (https://blog.rust-lang.org/2026/02/19/Rust-participates-in-GSoC-2026/) Django Contributor Covenant 3 を Django の新行動規範に採用する計画（第1段階完了） - Plan to Adopt Contributor Covenant 3 as Django’s New Code of Conduct (https://www.djangoproject.com/weblog/2026/feb/19/2026-coc-update-phase-2/) Google Cloud Gemini 3.1 Pro を発表（Google Cloud） - Introducing Gemini 3.1 Pro on Google Cloud (https://cloud.google.com/blog/products/ai-machine-learning/gemini-3-1-pro-on-gemini-cli-gemini-enterprise-and-vertex-ai/) Google Cloud AIでフリースタイル回転を3D計測 - Using Google Cloud AI to measure the physics of U.S. freestyle snowboarding and skiing (https://cloud.google.com/blog/products/ai-machine-learning/measure-physics-of-freestyle-snowboarding-and-skiing/) 旧Apache Cassandraを廃止しSpannerへ移行 - Decommission your legacy Apache Cassandra stack and build for the future with Spanner (https://cloud.google.com/blog/products/databases/cassandra-query-language-cql-apis-on-spanner/) BigQueryの自動埋め込み生成でAIワークフローを簡素化 - Simplify your AI workflow with autonomous embedding generation in BigQuery (https://cloud.google.com/blog/products/data-analytics/introducing-bigquery-autonomous-embedding-generation/) BigQueryでConversational Analytics APIを使った会話型エージェント構築 - Building a conversational agent in BigQuery using the Conversational Analytics API (https://cloud.google.com/blog/products/data-analytics/build-data-agents-with-conversational-analytics-api/) 主権と欧州の競争力：パートナーシップで進めるAI成長 - Sovereignty and European competitiveness: A partnership-led approach to AI growth (https://cloud.google.com/blog/products/identity-security/sovereignty-and-european-competitiveness-a-partnership-led-approach-to-ai-growth/) Kotlin VS Code向け Java→Kotlin 変換拡張を公開 - Java to Kotlin Conversion Comes to Visual Studio Code (https://blog.jetbrains.com/kotlin/2026/02/java-to-kotlin-conversion-comes-to-visual-studio-code/) 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)