macos

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.