- Level
- confirmed
- Worst impact
- Major outage
- Down Index
- 39of 100
What to do
Check whether your product depends on GitHub Copilot. Check your stack
Paste a package.json, lockfile, Terraform or a list of domains at down.guide/stack to see every provider you depend on.Confirm your retries, queues and scheduled jobs caught up after the 52m it lasted.
Anything that failed between 2026-09-28 21:16 UTC and 2026-09-28 22:08 UTC may need a replay.Subscribe to GitHub Copilot's feed to hear about the next one first. RSS feed
https://down.guide/feed?provider=github-copilot works in Slack (/feed subscribe), Discord feed bots and any RSS reader.
Root cause
This was due to a change in a dependent service that stopped delivering data Copilot Code Review needs to complete a review.Read the postmortem
Updates from GitHub Copilot 4
- investigating
We are investigating reports of impacted performance for some GitHub services.
provider
- investigating
Revert of the impacted change is in flight, expect full recovery once the deployment is done.
provider
- investigating
Copilot Code review has recovered, for reviews that were previously not successful you can re-request review from your PR.
provider
- 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. 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.
provider
Reports count in aggregate; nothing about you is shown.
Corrections
None so far.
Something wrong on this page? Report an error or send us a note. Every fix is listed here.
Questions about DWN-9ee1be801b
Is GitHub Copilot still down?
No, this incident was resolved 2026-09-28 22:08 UTC. For GitHub Copilot's live state, see https://down.guide/github-copilot.
How long did it last?
52m, from 2026-09-28 21:16 UTC to 2026-09-28 22:08 UTC, by the times GitHub Copilot posted.
What caused it?
GitHub Copilot wrote: "This was due to a change in a dependent service that stopped delivering data Copilot Code Review needs to complete a review." The postmortem: https://stspg.io/phqvtmdm3y2m
Where does this come from?
GitHub Copilot's official status page, https://www.githubstatus.com, quoted verbatim. down.guide's own probes, reports and social counts are labeled as ours.