Disruption with Copilot Code Review

What to do

• Check whether your product depends on GitHub. 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 1h 48m it lasted.

  Anything that failed between 2026-09-04 20:39 UTC and 2026-09-04 22:26 UTC may need a replay.

• Subscribe to GitHub's feed to hear about the next one first. RSS feed

  https://down.guide/feed?provider=github works in Slack (/feed subscribe), Discord feed bots and any RSS reader.

Updates from GitHub 5

1. investigatingSep 4, 2026, 8:39 PM UTC

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

   provider

2. investigatingSep 4, 2026, 8:57 PM UTC

   Some users may be experiencing failures when using Copilot code review. We have identified the root cause and are working on a mitigation.

   provider

3. investigatingSep 4, 2026, 9:54 PM UTC

   We are applying the mitigation and expect recovery within approximately 30 minutes.

   provider

4. monitoringSep 4, 2026, 10:25 PM UTC

   The degradation has been mitigated. We are monitoring to ensure stability.

   provider

5. resolvedSep 4, 2026, 10:26 PM UTC

   On September 4, 2026, between 20:04 and 22:26 UTC, GitHub Copilot code review experienced an increased failure rate. Affected pull request reviews failed to complete or post review comments. The incident was caused by a change to the service’s authentication permissions that prevented it from submitting affected reviews to the GitHub API. We reverted the change and restored normal operation by 22:26 UTC. We apologize for the disruption.

   provider

Corrections

None so far.

Something wrong on this page? Report an error or send us a note. Every fix is listed here.