ARCHIVED OFFICIAL INCIDENT

Copilot Code Review is unable to complete reviews

GitHub · Last saved provider status: resolved

Current service report →
This is historical evidence.

The last saved event status is not the current service status. Source lists can be incomplete, and disappearance from a source does not confirm recovery. Open the current report or the official source for newer evidence.

Saved event details

Provider status
resolved
Provider impact
critical
Provider record created
28 Sep 2026, 21:16:39 UTC
Provider record updated
01 Oct 2026, 16:12:43 UTC
Explicit provider start
28 Sep 2026, 21:16:39 UTC
Explicit provider end
28 Sep 2026, 22:08:20 UTC

Affected components reported by the provider

The provider explicitly listed no affected components in this saved revision.

These associations describe this event’s reported scope. They do not establish current component availability or verified dependencies.

A record creation time is not necessarily an outage start. Unreported times remain unavailable. We do not calculate downtime from collection times.

Provider updates in saved revisions

Latest first. We show up to 100 distinct updates from the latest 20 saved content revisions. Revised wording at the same provider time is retained separately.

  1. resolved

    On September 28, 2026, between 19:23 UTC and 22:08 UTC the Copilot Code Review service was degraded and pull request reviews did not complete in all environments. On average, approximately 70% of requested reviews did not complete. Reviews requested during this window were not automatically retried, and users needed to re-request a review from their pull request. This was due to a change in a dependent service that stopped delivering data Copilot Code Review needs to complete a review. Review completion is an inherently delayed signal, because each review job takes time to start and finish, so it took longer to detect the impact.<br /><br />We mitigated the incident by reverting the change.<br /><br />We are working to add a faster signal for reviews that fail to complete, add deployment validation that confirms a Copilot Code Review completes end to end, improve how we track internal dependencies between services, and make our deployment pipeline more reliable to reduce our time to detection and mitigation of issues like this one in the future.

    Seen in a saved revision at 06 Oct 2026, 13:58:39 UTC
  2. investigating

    Copilot Code review has recovered, for reviews that were previously not successful you can re-request review from your PR.

    Seen in a saved revision at 06 Oct 2026, 13:58:39 UTC
  3. investigating

    Revert of the impacted change is in flight, expect full recovery once the deployment is done.

    Seen in a saved revision at 06 Oct 2026, 13:58:39 UTC
  4. investigating

    We are investigating reports of impacted performance for some GitHub services.

    Seen in a saved revision at 06 Oct 2026, 13:58:39 UTC