macos-26-arm64 (20251209) Image Update

Announcements
[macOS] Deprecation of Xcode 16.3 and older runtimes on macOS 15 on January 12th, 2026.
[macOS] Deprecation of Xcode 16.4 on macOS 26 on December 8th.
[macOS] The macOS 13 Ventura based runner images will begin deprecation on September 22nd and will be fully unsupported by December 4th for GitHub and ADO
[macOS] The additional macOS 15 Sonoma Intel-based image will be available in GitHub Actions
macOS 26 (Tahoe) is now available as a public beta in GitHub Actions

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🖥️ Actions Runner Image: macOS 26

• OS Version: macOS 26.0.1 (25A362)
• Kernel Version: Darwin 25.0.0
• Image Version: 20251209.0083.1

📣 What's changed?

Deleted ➖

Xcode > Installed SDKs

SDK	SDK Name	Xcode Version
macOS 15.5	macosx15.5	16.4
iOS 18.5	iphoneos18.5	16.4
Simulator - iOS 18.5	iphonesimulator18.5	16.4
tvOS 18.5	appletvos18.5	16.4
Simulator - tvOS 18.5	appletvsimulator18.5	16.4
watchOS 11.5	watchos11.5	16.4
Simulator - watchOS 11.5	watchsimulator11.5	16.4
visionOS 2.5	xros2.5	16.4
Simulator - visionOS 2.5	xrsimulator2.5	16.4
DriverKit 24.5	driverkit24.5	16.4

Xcode > Installed Simulators

Name	OS	Simulators
iOS 18.5	18.5	iPhone 16 iPhone 16 Plus iPhone 16 Pro iPhone 16 Pro Max iPhone 16e iPad (A16) iPad Air 11-inch (M3) iPad Air 13-inch (M3) iPad mini (A17 Pro) iPad Pro 11-inch (M4) iPad Pro 13-inch (M4)
iOS 18.6	18.6	iPhone 16 iPhone 16 Plus iPhone 16 Pro iPhone 16 Pro Max iPhone 16e iPad (A16) iPad Air 11-inch (M3) iPad Air 13-inch (M3) iPad mini (A17 Pro) iPad Pro 11-inch (M4) iPad Pro 13-inch (M4)
tvOS 18.5	18.5	Apple TV Apple TV 4K (3rd generation) Apple TV 4K (3rd generation) (at 1080p)
watchOS 11.5	11.5	Apple Watch SE (40mm) (2nd generation) Apple Watch SE (44mm) (2nd generation) Apple Watch Series 10 (42mm) Apple Watch Series 10 (46mm) Apple Watch Ultra 2 (49mm)
visionOS 2.5	2.5	Apple Vision Pro

Updated

Category	Tool name	Previous (20251203.0070.1)	Current (20251209.0083.1)
Language and Runtime	Python3	3.14.0	3.14.2
Package Management	Homebrew	5.0.4	5.0.5
	Vcpkg	2025 (build from commit 80d025e829)	2025 (build from commit 971828fe09)
Tools	AWS CLI	2.32.8	2.32.12
	CodeQL Action Bundle	2.23.6	2.23.7
Browsers	Microsoft Edge	142.0.3595.94	143.0.3650.66
	Microsoft Edge WebDriver	142.0.3595.94	143.0.3650.66
Cached Tools	Python	3.13.10, 3.14.1	3.13.11, 3.14.2

Xcode

Version	Build	Path	Symlinks
26.2 (beta)	17C5038g	/Applications/Xcode_26.2_beta_2.app	/Applications/Xcode_26.2.0.app /Applications/Xcode_26.2.app
16.4	16F6	/Applications/Xcode_16.4.app	/Applications/Xcode_16.4.0.app
26.2	17C48	/Applications/Xcode_26.2_Release_Candidate.app	/Applications/Xcode_26.2.0.app /Applications/Xcode_26.2.app

Android

Package Name	Version
Android Emulator	36.2.12
Android Emulator	36.3.10

For comprehensive list of software installed on this image please click here.