macos

Oracle's JEP 541, Homebrew 7.0.0 and the Node.js 27.0.0-alpha.0.0.0 notes each lower macOS x64 support in different ways, while Apple's macOS 27 does not support Intel Macs.

GitHub's Xcode 27 runner image for Actions is now generally available on arm64 runners only; a separate runner-images notice plans to make OpenSSL 4 the default from November 2.

GitHub's CodeQL 2.27.2 changelog says autobuild and manual build modes will not be supported for compiled languages on macOS 27, and lists a breaking Go CFG rewrite.

GitHub will retire the macOS 14 runner image on November 2, 2026 and fail jobs using it in eight October brownout windows; Azure DevOps hosted agents follow the same schedule.

Homebrew 7.0.0 adds a brew vulns scanner and advisory database, swaps Linux Bubblewrap sandboxing for Landlock, and patches a cask sandbox-escape flaw.

Anthropic has launched a research preview enabling Claude to operate Mac desktops directly, opening files, navigating browsers, and executing tasks across applications with a permission-based safety model, available to Pro and Max subscribers.