# GitLab: Major incident: Mac OS runners can't create cache after upgrade

**Summary:** _summary pending_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2025-11-14 04:51 UTC · Detected: 2026-10-18 05:08 UTC
- [Source: https://status.gitlab.com/pages/incident/5b36dc6502d06804c08349f7/6916b5510a71c405ab9d12a9](https://status.gitlab.com/pages/incident/5b36dc6502d06804c08349f7/6916b5510a71c405ab9d12a9)
- [Company: GitLab](https://rewindex.com/company/gitlab.md)
- Versions: before (none: first archived) → after incident\_version:188/6916b5510a71c405ab9d12a9@a94b93efc24b
- Change 1 of 1 for this incident

Incident page (full timeline): [Mac OS runners can't create cache after upgrade](https://rewindex.com/company/gitlab/incidents/6916b5510a71c405ab9d12a9.md)
## What changed

**1. Added: Title**

```diff
+ Mac OS runners can't create cache after upgrade
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2025-11-14 04:51 UTC
```

**5. Added: Resolved time**

```diff
+ 2025-11-14 07:55 UTC
```

**6. Added: Affected components**

```diff
+ CI/CD - Hosted runners on macOS
```

**7. Added: Update** (investigating) · 2025-11-14 04:51 UTC

```diff
+ We have received reports that some MacOS GitLab Runners have been unable to create CI caches following a version update earlier today. We are in the process of rolling back the update. See https://gitlab.com/gitlab-com/gl-infra/production/-/issues/20841 for more details
```

**8. Added: Update** (monitoring) · 2025-11-14 05:28 UTC

```diff
+ The affected MacOS Runners have been rolled back to a previous version and they have resumed creating CI caches. We will continue to monitor the Runners to ensure the matter is resolved. Further info: https://gitlab.com/gitlab-com/gl-infra/production/-/issues/20841
```

**9. Added: Update** (resolved) · 2025-11-14 07:55 UTC

```diff
+ We have received no further reports of MacOS Runners failing to create CI caches so this incident is being marked as resolved. For more info see: https://gitlab.com/gitlab-com/gl-infra/production/-/issues/20841
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2025-11-14 04:51 UTC | Major incident: Mac OS runners can't create cache after upgrade (this change) | outage |

All GitLab changes: [timeline](https://rewindex.com/company/gitlab/changes.md)
_Diff excerpts are shown on normalized text: dates, counters and tokens appear as ‹date›, ‹count›, ‹tok›; noise-only edits are hidden. Rewindex shows the changed passages, not a copy of the page._


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Canonical: https://rewindex.com/change/i7fb8f0b3a0a9b7 · Markdown: https://rewindex.com/change/i7fb8f0b3a0a9b7.md · JSON: https://rewindex.com/api/v1/changes/i7fb8f0b3a0a9b7 · Generated 2026-10-18T12:19:32.285Z