Outage in GitHub
Incident with Pull Requests
Resolved MinorIncident Report
Summary AI Generated
GitHub experienced a regression in merge queue functionality that caused pull requests to be merged incorrectly when using squash merges or rebases between 16:05-20:43 UTC. The issue affected GitHub's Pull Requests service for 1.9 hours before being resolved by reverting the problematic change. Users who utilized merge queue with squash or rebase configurations may have had their pull requests processed incorrectly during this timeframe.
We are investigating reports of degraded performance for Pull Requests
Components affected
GitHub Pull RequestsTrusted by 1,000+ teams
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Latest Updates ( sorted recent to last )
RESOLVED
about 6 hours ago - at 04/23/2026 09:43PM
This 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.
INVESTIGATING
about 7 hours ago - at 04/23/2026 09:18PM
We have resolved a regression present when using merge queue with either squash merges or rebases. If you use merge queue in this configuration, some pull requests may have been merged incorrectly between 2026-04-23 16:05-20:43 UTC.
This behavior is still present in GitHub Enterprise Cloud with Data Residency, and we are rolling out the same fix.
INVESTIGATING
about 7 hours ago - at 04/23/2026 08:47PM
Pull Requests is operating normally.
INVESTIGATING
about 8 hours ago - at 04/23/2026 07:58PM
We have identified a regression in merge queue behavior present when squash merging or rebasing. We have identified the root-cause and are in the process of reverting the change.
INVESTIGATING
about 8 hours ago - at 04/23/2026 07:50PM
We are investigating reports of degraded performance for Pull Requests
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