Attention DevOps teams and Mac/iOS developers:
Microsoft retired two major hosted images today, December 4, 2025.
- macOS-13 hosted image → retired today, December 4, 2025
• Windows-2019 hosted image → retiring December 31, 2025 (after a six-month extension)
What this means:
Pipelines still running on macOS-13 will start failing immediately.
Pipelines using Windows-2019 will continue to run until December 31, after which they will fail as well.
Teams must shift to supported images now to ensure uninterrupted CI/CD operations.
Why it matters:
• Keeps CI/CD pipelines fully functional
• Ensures compatibility with current platforms
• Prevents last-minute scrambling and disruption
Microsoft has published full brownout timelines and migration guidance for both Windows and Mac in its Dev Blogs.
Pro tip:
If your team is still on macOS-13 or Windows-2019, kick off migration today. Once brownouts scale or full retirement hits, recovery becomes much harder.
