Outage in Mergify

Merge Queue Disruption

Resolved Major

May 28, 2026 - Started 1 day ago - Lasted 25 minutes
Official incident page

Incident Report

We are currently experiencing a disruption affecting merge queue operations. On our side, we are observing a surge of 404 Branch not found responses from GitHub APIs, which is impacting branch processing and merge queue execution. We are actively investigating the issue and monitoring GitHub API behavior closely. We will provide updates as more information becomes available.

Components affected

Mergify GitHub API Requests

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Latest Updates ( sorted recent to last )

RESOLVED 1 day ago - at 05/28/2026 01:44PM

The incident affecting merge queue operations has been resolved.

The issue was caused by a transient surge of 404 Branch not found responses returned by GitHub APIs, which temporarily impacted branch processing and merge queue execution.

The errors have subsided and merge queue operations are now functioning normally.

We continue to monitor the situation closely.

INVESTIGATING 1 day ago - at 05/28/2026 01:36PM

We are currently experiencing a disruption affecting merge queue operations.

On our side, we are observing a surge of 404 Branch not found responses from GitHub APIs, which is impacting branch processing and merge queue execution.
We are actively investigating the issue and monitoring GitHub API behavior closely.

We will provide updates as more information becomes available.

Latest Mergify outages

Merge Queue using mergify cli to send scopes may have encounter issues - 24 days ago

Degraded performance in pull request processing - about 1 month ago

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Processing of GitHub events is delayed - 2 months ago

Data Processing Delays - 3 months ago

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