最近 SAMARI で要約された技術ニュースをお届けします。

Ruby 4.0.0-preview3 リリース - Ruby 4.0.0 preview3 Released (https://www.ruby-lang.org/en/news/2025/12/18/ruby-4-0-0-preview3-released/)

GitLab 18.7：AI自動化・ガバナンス・開発体験を強化 - GitLab 18.7: Advancing AI automation, governance, and developer experience (https://about.gitlab.com/blog/gitlab-18-7-advancing-ai-automation/)

AWS Direct ConnectがAWS FISで耐障害性テストをサポート - AWS Direct Connect now supports resilience testing with AWS Fault Injection Service (https://aws.amazon.com/about-aws/whats-new/2025/12/direct-connect-resilience-testing-fault-injection-service/)

R8iとR8i‑flexが追加リージョンで利用可能に - Amazon EC2 R8i and R8i-flex instances are now available in additional AWS regions (https://aws.amazon.com/about-aws/whats-new/2025/12/ec2-r8i-r8i-flex-instances-additional-regions/)

Amazon MSK Express BrokersがKafka v3.9でKRaft対応 - Amazon MSK introduces KRaft support for Express Brokers with Apache Kafka v3.9 (https://aws.amazon.comabout-aws/whats-new/2025/12/aws-msk-express-brokers-support-kraft/)

Amazon NeptuneがAWS Europe（Zurich）リージョンで利用可能に - Amazon Neptune Database is now available in the AWS Europe (Zurich) Region (https://aws.amazon.com/about-aws/whats-new/2025/12/amazon-neptune-zurich-region)

Amazon WorkSpacesがIPv6をサポート - Amazon WorkSpaces now supports IPv6 (https://aws.amazon.com/about-aws/whats-new/2025/12/amazon-workspaces-ipv6/)

Amazon MSK Connectが新規コネクタでIPv4/IPv6デュアルスタック対応 - Amazon MSK Connect now supports dual-stack (IPv4 and IPv6) connectivity for new connectors (https://aws.amazon.com/about-aws/whats-new/2025/12/amazon-msk-connect-dual-stack-ipv-and-ipv/)

エンタープライズ向けプルリク活動がCopilot使用状況に公開プレビューで追加 - Enterprise-level pull request activity now included in Copilot Usage Metrics in public preview (https://github.blog/changelog/2025-12-18-enterprise-level-pull-request-activity-metrics-now-in-public-preview)

Copilot Code Reviewのプレビュー機能がデータ居住対応のGitHub Enterprise Cloudで利用可能に - Copilot code review preview features now supported in GitHub Enterprise Cloud with data residency (https://github.blog/changelog/2025-12-18-copilot-code-review-preview-features-now-supported-in-github-enterprise-cloud-with-data-residency)

Teams管理が設定に移動 - Teams management now moved to Settings (https://github.blog/changelog/2025-12-18-teams-management-now-moved-to-settings)

GitHub Enterprise Cloud：日本でのデータ居住性が一般提供開始 - GitHub Enterprise Cloud data residency in Japan is generally available (https://github.blog/changelog/2025-12-18-github-enterprise-cloud-data-residency-in-japan-is-generally-available)

GitHub CopilotがAgent Skillsをサポート - GitHub Copilot now supports Agent Skills (https://github.blog/changelog/2025-12-18-github-copilot-now-supports-agent-skills)

Advanced Securityのセルフサーブ試用が拡大 - GitHub Advanced Security trials now available for more GitHub Enterprise customers (https://github.blog/changelog/2025-12-18-github-advanced-security-trials-now-available-for-more-github-enterprise-customers)

Copilotを課題に割り当てると自分も担当者に追加される - Assigning GitHub Copilot to an issue now adds you as an assignee (https://github.blog/changelog/2025-12-18-assigning-github-copilot-to-an-issue-now-adds-you-as-an-assignee)

Java優勢の環境でKotlinを導入するための究極ガイド - The Ultimate Guide to Successfully Adopting Kotlin in a Java-Dominated Environment (https://blog.jetbrains.com/kotlin/2025/12/the-ultimate-guide-to-successfully-adopting-kotlin-in-a-java-dominated-environment/)

Vertex AI Agent Builder：ツールガバナンス強化と開発・運用機能の拡張 - Announcing advanced governance capabilities for Vertex AI Agent Builder (https://cloud.google.com/blog/products/ai-machine-learning/new-enhanced-tool-governance-in-vertex-ai-agent-builder/)

AIで良いSQLを作る：AlloyDB AI自然言語APIの最適化 - Getting AI to write good SQL: Optimizing the AlloyDB AI natural language API for your use case (https://cloud.google.com/blog/products/databases/optimizing-alloydb-ai-text-to-sql-accuracy/)

2026年のDSF理事会を発表 - Introducing the 2026 DSF Board (https://www.djangoproject.com/weblog/2025/dec/18/introducing-the-2026-dsf-board/)

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)