2026.03.19

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 AIエージェント経由のシークレットスキャンがGitHub MCP Serverで公開プレビュー - Secret scanning in AI coding agents via the GitHub MCP Server (https://github.blog/changelog/2026-03-17-secret-scanning-in-ai-coding-agents-via-the-github-mcp-server) Copilot coding agentがセマンティックコード検索で高速化 - Copilot coding agent works faster with semantic code search (https://github.blog/changelog/2026-03-17-copilot-coding-agent-works-faster-with-semantic-code-search) GPT-5.3-CodexがCopilotで初の12か月LTSに - GPT-5.3-Codex long-term support in GitHub Copilot (https://github.blog/changelog/2026-03-18-gpt-5-3-codex-long-term-support-in-github-copilot) AWS SageMaker Unified Studioがデータ系譜の集約表示を提供 - Amazon SageMaker Unified Studio supports aggregated view of data lineage (https://aws.amazon.com/about-aws/whats-new/2026/03/amazon-sageMaker-unified-studio-aggregated-view -data-lineage/) SageMaker Unified Studioがデータ系譜の集約表示に対応 - Amazon SageMaker Unified Studio supports aggregated view of data lineage (https://aws.amazon.com/about-aws/whats-new/2026/03/amazon-sagemaker-unified-studio-aggregated-lineage/) Amazon Connectの音声AIエージェントが13言語を新規対応 - Amazon Connect voice AI agents now supports 13 new languages (https://aws.amazon.com/about-aws/whats-new/2026/03/amazon-connect-voice-ai-agents-13-languages/) MediaConnectがNDI入力をサポート - AWS Elemental MediaConnect adds support for NDI® inputs (https://aws.amazon.com/about-aws/whats-new/2026/03/mediaconnect-ndi-inputs/) Amazon Connect、ロンドン（欧州）リージョンでエージェント型音声対話を提供し3声を追加 - Amazon Connect expands agentic speech-to-speech voice experiences to the London (Europe) region and adds three new voices (https://aws.amazon.com/about-aws/whats-new/2026/03/amazon-connect-london-europe-region/) Amazon OpenSearch ServiceがOpenSearch 3.5をサポート - Amazon OpenSearch Service now supports OpenSearch version 3.5 (https://aws.amazon.com/about-aws/whats-new/2026/03/amazon-opensearch-service-version-3-5/) Amazon Redshift、新規クエリを最大7倍高速化 - Amazon Redshift increases performance for new queries in dashboards and ETL workloads by up to 7x (https://aws.amazon.com/about-aws/whats-new/2026/03/amazon-redshift-increases-performance-for-new-queries/) AWS Config が75の新しいマネージドルールを追加 - AWS Config launches 75 new managed rules (https://aws.amazon.com/about-aws/whats-new/2026/02/aws-config-launches-new-rules/) Amazon Inspectorがエージェント不要のEC2スキャンを拡張、Windows KBベースの所見を導入 - Amazon Inspector expands agentless EC2 scanning and introduces Windows KB-based findings (https://aws.amazon.com/about-aws/whats-new/2026/03/amazon-inspector-agentless-ec2-scanning-windows/) Amazon EC2 C8aインスタンス、東京リージョンで提供開始 - Amazon EC2 C8a instances now available in the Asia Pacific (Tokyo) region (https://aws.amazon.com/about-aws/whats-new/2026/03/amazon-ec2-r8a-instances-asia-pacific-tokyo-regions/) Amazon S3 Access GrantsがAWSアジアパシフィック（ニュージーランド）リージョンで利用可能に - Amazon S3 Access Grants are now available in the AWS Asia Pacific (New Zealand) Region (https://aws.amazon.com/about-aws/whats-new/2026/03/amazon-s3-access-grants-new-zealand/) Google Cloud Google ADK・MCPでマルチエージェント「Dev Signal」構築（Part 1） - Build a Multi-Agent System for Expert Content with Google ADK, MCP and Cloud Run - Part 1 (https://cloud.google.com/blog/topics/developers-practitioners/build-a-multi-agent-system-for-expert-content-with-google-adk-mcp-and-cloud-run-part-1/) DarkSword：複数アクターが利用するiOSフルチェーン攻撃 - The Proliferation of DarkSword: iOS Exploit Chain Adopted by Multiple Threat Actors (https://cloud.google.com/blog/topics/threat-intelligence/darksword-ios-exploit-chain/) Memorystore の Valkey 9.0 が GA — 高速化と新機能 - Next-gen caching with Memorystore for Valkey 9.0, now GA (https://cloud.google.com/blog/products/databases/memorystore-for-valkey-9-0-is-now-ga/) Cloud SQLのリードプールが自動スケーリングで読み取りを簡素化 - Streamline read scalability with Cloud SQL autoscaling read pools (https://cloud.google.com/blog/products/databases/cloudsql-read-pools-support-autoscaling/) 分散AIエージェントの構築（オーケストレータパターン） - Building Distributed AI Agents (https://cloud.google.com/blog/topics/developers-practitioners/building-distributed-ai-agents/) Kotlin Google Summer of Code 2026：Kotlin に貢献 - Google Summer of Code 2026 Is Here: Contribute to Kotlin (https://blog.jetbrains.com/kotlin/2026/03/gsoc-2026-contribute-to-kotlin/) 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)