macOS Tahoe 26.5.2 with Xcode 26.6 Now Available

We've refreshed the getmac-tahoe-rc image. It now runs macOS Tahoe 26.5.2 (25F84) with Xcode 26.6, replacing the 26.5.1 build that shipped under this label in June.

What's New

• Xcode 26.6 — Build 17F113, up from Xcode 26.5 (17F42).
• Rust toolchain added — rustc 1.96.1 is now pre-installed. Previous Tahoe RC images shipped without Rust, so cross-language projects no longer need a rustup step.
• Updated CLIs — AWS CLI 2.35.15, Google Cloud SDK 575.0.0, and GitHub CLI 2.96.0.
• Mobile build tools — Fastlane 2.237.0 (from 2.236.1) and CocoaPods 1.16.2.
• Node.js packages — npm 11.17.0, pnpm 11.10.0, eslint 10.6.0, and TypeScript 6.0.3.
• Python packages — pip 26.1.2, cryptography 49.0.0, and certifi 2026.6.17.
• Android SDK — Android Emulator 36.6.11, Platform-Tools 37.0.0, Build-Tools 34 & 35, and NDK 27.

Simulator Runtimes Are Unchanged

This image carries the same simulator runtimes as the 26.5.1 RC: iOS 26.5 (23F77), tvOS 26.5 (23L470), watchOS 26.5 (23T570), and visionOS 26.5 (23O470), alongside the 26.1–26.4 and legacy 18.x runtimes. If your test matrix targets those runtimes, nothing changes for you — the upgrade is Xcode, the language toolchains, and the CLIs.

What Hasn't Changed

The getmac-tahoe-rc label continues to track the release candidate. Our stable labels — getmac, getmac-latest, and getmac-tahoe — still resolve to macOS Tahoe 26.3.2 with Xcode 26.4. We'll announce the stable promotion here once 26.5.2 completes validation.

Docker and Colima remain unavailable on this image.

GitHub Actions Integration

Use the following labels in your runs-on field:

• getmac or getmac-latest — macOS Tahoe 26.3.2 with Xcode 26.4 (current stable)
• getmac-tahoe-rc — macOS Tahoe 26.5.2 with Xcode 26.6 (Release Candidate)

- runs-on: macos-latest
+ runs-on: getmac-tahoe-rc

If your workflow already targets getmac-tahoe-rc, you'll pick up 26.5.2 on your next run with no changes required. Builds pinned to Xcode 26.5 behavior should validate against 26.6 before relying on it.

For the full list of available labels, see our Workflow Labels documentation. For a complete breakdown of pre-installed tools, simulators, and SDKs, check out the Installed Tools & Libraries page.

Get Started

The image is live now. Point your workflow at getmac-tahoe-rc to build against Xcode 26.6.

As always, we'd love to hear your feedback — join our Discord community to share thoughts or request new tools.

— The GetMac Team