macOS 26 for GitHub Actions runners is generally available

macOS 26 (Tahoe) is now generally available on Depot GitHub Actions runners. Add the depot-macos-26 label to a job and it runs on Apple M4 hardware with our in-memory disk accelerator, the macOS 26 SDKs, and Xcode 26 preinstalled. It joins the existing macOS 14 (Sonoma) and macOS 15 (Sequoia) runners.

jobs:
  build:
    runs-on: depot-macos-26

See the launch post for the full list of what's in the image.