Is macOS 15 missing from the repository readme?

[HonkingGoose]

Quote from:

• Actions: macOS 15 is now available for GitHub-hosted runners (GA) github/roadmap#986

To use macOS 15 directly, update the runs-on: key in you workflow file to macos-15, macos-15-large, or macos-15-xlarge

But the readme on this repository does not mention macOS 15 yet. Should the readme be updated, so it mentions the new macOS 15 runners?

[erik-bershel]

Hey @HonkingGoose!

Mentioned work item belongs to Q4 or Oct-Dec. macOS-15 is not published yet.

[HonkingGoose]

macOS-15 is not published yet.

Whoops! You're right, it's not published yet!

Thank you for the quick response! ❤️

[ryanjwessel]

Following up on this thread, what is the expected SLA for adding support for the newest versions of MacOS when they are released?

The official release date is 9/16.

My team would like to use some features, like support for dark mode and tinted app icons, that are only available in Xcode 16. But we'd prefer not to build from beta versions of software.

Is the suggested approach for teams to use the Xcode beta or the latest version from the previous MacOS version once Xcode 16 is generally available?

[erik-bershel]

New functionality is always available only in new versions of Xcode, Apple's release cycle implies that the new Xcode will be in beta for some time. Strictly speaking, no one forces anyone, but in fact, if you want your application to deliver new functionality before competitors, then you will have to use beta.

Xcode release history: https://xcodereleases.com/

[ryanjwessel]

Thanks, @erik-bershel. That makes sense and aligns with what we've had to do. At least Xcode 16 is compatible with MacOS Sonoma, so in theory, we could use the GA version once that is published.

Do you know what GitHub's SLA is for publishing new MacOS images? I'm just curious if the target is broadly Q4 or if the team aims to release a new image within 30/60 days of a new GA OS version release.

[erik-bershel]

Public target for macOS-15 is the end of Q3. Might be postponed for some time, but in this case we'll inform community via GitHub blog and/or roadmap.

[ryanjwessel]

Okay, thank you for that information, @erik-bershel; that is quite helpful for our planning!