GitHub Outage: Merge-Queue Bug Reverts Merged Commits

GitHub experienced a major service disruption on April 24, 2026, centered on its merge-queue feature—the mechanism that coordinates changes when many developers push updates to the same project. The goal of the queue is to prevent conflicting changes and accidental breaks, but a bug caused it to randomly revert commits that had already been merged, undoing previously saved code snapshots.

The outage was not isolated to a single service hiccup; other disruptions hit the platform on the same day. The incident comes amid ongoing conversations within the company about reliability and leadership, with employees voicing concerns about how GitHub handles outages and long-term stability.

Reporting on the event, Tom Warren highlights the cascade of disruption affecting multiple projects relying on the queue system. For readers, following the story’s topics and authors will surface related updates in your personalized homepage feed and via email alerts.