# GitHub: macos-15-arm64 hosted runner queue delays

> GitHub status incident “macos-15-arm64 hosted runner queue delays” on 2025-03-18: impact minor (vendor’s label), 2.2 h, 1 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/github/incidents/yz50lpc8d4xq
Last updated: 2025-03-18T17:15:00Z

- Impact (vendor’s label): minor
- Status: resolved
- Started: 2025-03-18 15:05 UTC · Resolved: 2025-03-18 17:15 UTC · Duration: 2.2 h
- Updates: 1
- [Vendor status page: https://www.githubstatus.com/incidents/yz50lpc8d4xq](https://www.githubstatus.com/incidents/yz50lpc8d4xq)
- [Company: GitHub](https://rewindex.com/company/github.md)

## Timeline of updates

- **resolved** 2025-03-18 17:15 UTC: On March 18, between 13:04 and 16:55 UTC, Actions workflows relying on hosted runners using the beta MacOS 15 image experienced increased queue time waiting for available runners. An image update was pushed the previous day that included a performance reduction. The slower performance caused longer average runtimes, exhausting our available Mac capacity for this image. This was mitigated by rolling back the image update. We have updated our capacity allocation to the beta and other Mac images and are improving monitoring in our canary environments to catch this potential issue before it impacts customers.

_From the vendor’s published history: only the final update text is available for incidents before Rewindex began polling this page._

## Cite this

Status incident (vendor impact label: minor) posted by GitHub, started 2025-03-18 15:05 UTC, resolved after 2.2 h, 1 update(s).

- Canonical URL: https://rewindex.com/company/github/incidents/yz50lpc8d4xq
- Citation: GitHub, “macos-15-arm64 hosted runner queue delays” (2025-03-18 15:05 UTC). Archived by Rewindex: https://rewindex.com/company/github/incidents/yz50lpc8d4xq (CC BY 4.0).
- Markdown link: `[GitHub: macos-15-arm64 hosted runner queue delays (2025-03-18)](https://rewindex.com/company/github/incidents/yz50lpc8d4xq)`


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Canonical: https://rewindex.com/company/github/incidents/yz50lpc8d4xq · Markdown: https://rewindex.com/company/github/incidents/yz50lpc8d4xq.md · JSON: https://rewindex.com/api/v1/companies/github/incidents/yz50lpc8d4xq · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T15:55:41.114Z