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Resolved GitHub · degraded service

Copilot Code Review is unable to complete reviews

Posted 28 Sep 21:16 UTC, last seen today 11:33 UTC.

GitHub status pageOn the status board
Unknown Duration: the provider stated no start
5Updates posted
5Other incidents at the same time

What it affected

As the provider names it

Copilot

What the provider posted

Newest first
  1. 28 Sep 22:08 UTCResolvedOn 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.We mitigated the incident by reverting the change.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.
  2. 28 Sep 22:08 UTCUpdateCopilot Code review has recovered, for reviews that were previously not successful you can re-request review from your PR.
  3. 28 Sep 22:08 UTCResolvedThis incident has been resolved. Thank you for your patience and understanding as we addressed this issue. A detailed root cause analysis will be shared as soon as it is available.
  4. 28 Sep 21:23 UTCUpdateRevert of the impacted change is in flight, expect full recovery once the deployment is done.
  5. 28 Sep 21:16 UTCInvestigatingWe are investigating reports of impacted performance for some GitHub services.

Around it

From the sources ChangeIntel reads; a match in time is not a cause

Earlier incidents in the 14 days before

What changed

First observed 14 Oct 2026

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Sources read 14 Oct 11:21 UTC · 251 of 253 readable · 250 fully read · documentation 0/409 current

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