Mergify Outage History

Mergify had 20 outages in the last 2 years totaling 60h 4m of downtime — averaging 0.8 incidents per month.

There were 20 Mergify outages since September 17, 2024 totaling 60h 4m of downtime. Each is summarised below — incident details, duration, and resolution information.

Source: https://status.mergify.com

Notice September 4, 2026

GitHub Events Processing

Detected by Pingoru: Sep 04, 2026, 09:10 AM UTC
Resolved: Sep 04, 2026, 11:21 AM UTC
Duration: 2h 10m

Affected: Engine

Timeline · 4 updates

identified Sep 04, 2026, 09:10 AM UTC

Our GitHub event processing is running behind for some customers which cause unexpected latency latency in our Workflow Automation and Merge Queue pickup.
monitoring Sep 04, 2026, 09:30 AM UTC

The backlog recovered for almost all users. We are still monitoring the situation.
monitoring Sep 04, 2026, 10:03 AM UTC

The backlog recovered for all users. We are still monitoring the situation.
resolved Sep 04, 2026, 11:21 AM UTC

Long-term fix has been deployed and is working as expected. All systems are operational.

Read the full incident report →

Major September 2, 2026

GitHub events processing

Detected by Pingoru: Sep 02, 2026, 06:12 PM UTC
Resolved: Sep 02, 2026, 09:20 PM UTC
Duration: 3h 7m

Affected: Engine

Timeline · 4 updates

identified Sep 02, 2026, 06:12 PM UTC

Our GitHub event processing is running behind for some customers which cause unexpected latency latency in our Workflow Automation and Merge Queue pickup.
monitoring Sep 02, 2026, 07:21 PM UTC

The GitHub events automatically recovered. 98% of impacted users already fully recovered. The GitHub events backlog continue to decreased for remaining users.
monitoring Sep 02, 2026, 08:34 PM UTC

The backlog recovered for almost all users. We are still monitoring the situation.
resolved Sep 02, 2026, 09:20 PM UTC

The GitHub events backlog have fully recovered

Read the full incident report →

Major August 17, 2026

Merge queue delays caused by a GitHub incident

Detected by Pingoru: Aug 17, 2026, 01:55 PM UTC
Resolved: Aug 18, 2026, 06:25 AM UTC
Duration: 16h 30m

Affected: Engine

Timeline · 2 updates

identified Aug 17, 2026, 01:55 PM UTC

GitHub is currently experiencing degraded service on its API and webhook delivery. Their incident is public and you can follow it at https://www.githubstatus.com. This is slowing merge queue processing across Mergify. Since around 13:30 UTC, pull requests are taking longer than usual to be evaluated and merged, and some events from GitHub are reaching us with delay. Your pull requests stay in the queue. There is no need to re-queue them or to change your configuration. Processing catches up as GitHub recovers. We are monitoring and will update this page when the situation changes.
resolved Aug 18, 2026, 06:25 AM UTC

GitHub's incident is resolved and Mergify is back to normal. Merge queue processing returned to its usual rate. Pull requests queued during the incident were processed as GitHub recovered, and no action is needed on your side.

Read the full incident report →

Minor July 14, 2026

Merge Queue Processing Delays

Detected by Pingoru: Jul 14, 2026, 12:05 PM UTC
Resolved: Jul 14, 2026, 12:52 PM UTC
Duration: 47m

Affected: Engine

Timeline · 3 updates

investigating Jul 14, 2026, 12:05 PM UTC

Our merge queue processing is very slow for some customers.
monitoring Jul 14, 2026, 12:40 PM UTC

We mitigated the issue, the processing is working again.
resolved Jul 14, 2026, 12:52 PM UTC

This incident has been resolved.

Read the full incident report →

Notice July 8, 2026

engine processing delays

Detected by Pingoru: Jul 08, 2026, 04:38 PM UTC
Resolved: Jul 08, 2026, 05:54 PM UTC
Duration: 1h 15m

Affected: Engine

Timeline · 2 updates

investigating Jul 08, 2026, 04:38 PM UTC

Some customers are experiencing some engine processing slowdown. We are investigate the issue.
resolved Jul 08, 2026, 05:54 PM UTC

The issue was impacted only a couple of customers and has been mitigated.

Read the full incident report →

Major June 18, 2026

Elevated API Errors

Detected by Pingoru: Jun 18, 2026, 08:50 AM UTC
Resolved: Jun 18, 2026, 09:49 AM UTC
Duration: 58m

Affected: EngineAPI

Timeline · 4 updates

investigating Jun 18, 2026, 08:50 AM UTC

We're experiencing an elevated level of API errors and are currently looking into the issue.
identified Jun 18, 2026, 09:22 AM UTC

The issue has been identified and a fix is being implemented.
monitoring Jun 18, 2026, 09:30 AM UTC

A fix has been implemented and we are monitoring the results.
resolved Jun 18, 2026, 09:49 AM UTC

Earlier today, some users experienced intermittent API errors and delays in merge queue processing. The cause was a database performance issue on our engine. We identified it, applied a fix, and the service is now fully operational. Thanks for your patience, and sorry for the disruption.

Read the full incident report →

Minor June 11, 2026

Unexpected merge queue notifications in Slack

Detected by Pingoru: Jun 11, 2026, 01:46 PM UTC
Resolved: Jun 11, 2026, 02:06 PM UTC
Duration: 19m

Timeline · 2 updates

identified Jun 11, 2026, 01:46 PM UTC

An issue is causing some Slack channels connected to Mergify to receive unexpected merge queue notifications, starting today at 13:14 UTC. Only notification delivery is affected — merge queues, pull request processing, and your data are operating normally. We have identified the cause and a fix is in progress and is being rolled out. We will post another update once the fix is fully deployed. We apologize for the noise in your channels.
resolved Jun 11, 2026, 02:06 PM UTC

This issue is now resolved.

Read the full incident report →

Major May 28, 2026

Merge Queue Disruption

Detected by Pingoru: May 28, 2026, 01:36 PM UTC
Resolved: May 28, 2026, 01:44 PM UTC
Duration: 8m

Affected: GitHub API Requests (githubstatus.com)

Timeline · 2 updates

investigating May 28, 2026, 01:36 PM UTC

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.
resolved May 28, 2026, 01:44 PM UTC

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.

Read the full incident report →

Notice May 5, 2026

Merge Queue using mergify cli to send scopes may have encounter issues

Detected by Pingoru: May 05, 2026, 11:11 AM UTC
Resolved: May 05, 2026, 01:07 PM UTC
Duration: 1h 56m

Timeline · 3 updates

identified May 05, 2026, 11:11 AM UTC

Merge Queue using mergify cli to send scopes may have encounter issues
monitoring May 05, 2026, 11:45 AM UTC

We yanked the mergify cli releases having an issue. The merge queue using scopes should work properly now.
resolved May 05, 2026, 01:07 PM UTC

New mergify-cli release fixed the issue.

Read the full incident report →

Minor April 15, 2026

Degraded performance in pull request processing

Detected by Pingoru: Apr 15, 2026, 06:29 PM UTC
Resolved: Apr 15, 2026, 07:37 PM UTC
Duration: 1h 8m

Affected: Engine

Timeline · 3 updates

investigating Apr 15, 2026, 06:29 PM UTC

We are currently experiencing degraded performance affecting pull request processing. This may result in delays in queue handling and slower execution of automated actions. Our team is actively investigating the issue and working on mitigation.
monitoring Apr 15, 2026, 06:53 PM UTC

We mitigated the issue and continue to monitor the pull request processing.
resolved Apr 15, 2026, 07:37 PM UTC

The issue has been resolved.

Read the full incident report →

Minor March 30, 2026

Dashboard login issue

Detected by Pingoru: Mar 30, 2026, 09:33 AM UTC
Resolved: Mar 30, 2026, 10:55 AM UTC
Duration: 1h 22m

Affected: Dashboard

Timeline · 2 updates

identified Mar 30, 2026, 09:33 AM UTC

Some users are currently unable to log in to the dashboard. We’re investigating and working on a fix.
resolved Mar 30, 2026, 10:55 AM UTC

The login issue has been resolved.

Read the full incident report →

Minor March 20, 2026

Processing of GitHub events is delayed

Detected by Pingoru: Mar 20, 2026, 04:38 PM UTC
Resolved: Mar 20, 2026, 05:44 PM UTC
Duration: 1h 5m

Affected: Engine

Timeline · 2 updates

investigating Mar 20, 2026, 04:38 PM UTC

Some GitHub webhook events are experiencing delayed processing, which may cause delays in pull request evaluations. We are actively investigating the issue.
resolved Mar 20, 2026, 05:44 PM UTC

Webhook delivery is back to normal. Some GitHub events may have been dropped during the incident, if your pull request appears stalled, run a @mergifyio refresh command to re-sync it.

Read the full incident report →

Major March 6, 2026

Data Processing Delays

Detected by Pingoru: Mar 06, 2026, 11:02 AM UTC
Resolved: Mar 06, 2026, 12:56 PM UTC
Duration: 1h 53m

Affected: Engine

Timeline · 3 updates

investigating Mar 06, 2026, 11:02 AM UTC

Our data processing infrastructure is running behind which is causing inaccuracies in the reporting.
monitoring Mar 06, 2026, 12:30 PM UTC

We've deployed a change to reduce the deliverability issues from GitHub webhooks events. We're monitoring this.
resolved Mar 06, 2026, 12:56 PM UTC

Github event processing is back on track

Read the full incident report →

Minor March 5, 2026

Duplicate queue status report comments on pull requests

Detected by Pingoru: Mar 05, 2026, 11:36 AM UTC
Resolved: Mar 05, 2026, 02:17 PM UTC
Duration: 2h 41m

Affected: Engine

Timeline · 3 updates

identified Mar 05, 2026, 11:36 AM UTC

We identified an issue where the merge queue was posting duplicate status report comments on pull requests. Instead of updating a single status comment per queue session, the system created a new comment on each queue cycle, resulting in a spam of comments on affected PRs. A fix is being deployed. Once applied, duplicate comments will stop. Existing duplicate comments are cosmetic and do not affect merge queue behavior or merging.
monitoring Mar 05, 2026, 12:42 PM UTC

Comment duplication has been mitigating, we're still investigating the issue.
resolved Mar 05, 2026, 02:17 PM UTC

The fix has been deployed and the duplicate queue status comments issue is now resolved. Pull requests will no longer receive multiple status report comments per queue cycle.

Read the full incident report →

Major February 26, 2026

Engine outage

Detected by Pingoru: Feb 26, 2026, 04:29 PM UTC
Resolved: Feb 26, 2026, 06:58 PM UTC
Duration: 2h 29m

Affected: Engine

Timeline · 5 updates

investigating Feb 26, 2026, 04:29 PM UTC

We're experiencing an elevated level of errors in the Mergify engine and are currently looking into the issue.
identified Feb 26, 2026, 05:32 PM UTC

We identified the issue, put in place first mitigation and releasing a fix
monitoring Feb 26, 2026, 05:57 PM UTC

We released a fix that solved the issue and we are recovering lost github event
monitoring Feb 26, 2026, 06:47 PM UTC

We are continuing to recover the lost GitHub events
resolved Feb 26, 2026, 06:58 PM UTC

This incident has been resolved.

Read the full incident report →

Major November 18, 2025

Cloudflare Upstream Outage Impacting Dashboard, Documentation and API

Detected by Pingoru: Nov 18, 2025, 12:09 PM UTC
Resolved: Nov 18, 2025, 02:53 PM UTC
Duration: 2h 43m

Affected: DashboardAPIDocumentation

Timeline · 3 updates

investigating Nov 18, 2025, 12:09 PM UTC

Our dashboard, API and documentation may be temporarily inaccessible due to an ongoing Cloudflare outage. More details are available on Cloudflare’s status page: https://www.cloudflarestatus.com/incidents/8gmgl950y3h7
investigating Nov 18, 2025, 12:47 PM UTC

Our dashboard, API and documentation may be temporarily inaccessible due to an ongoing Cloudflare outage. More details are available on Cloudflare’s status page: https://www.cloudflarestatus.com/incidents/8gmgl950y3h7
resolved Nov 18, 2025, 02:53 PM UTC

The incident is now resolved

Read the full incident report →

Major October 20, 2025

Missing pull requests approvals

Detected by Pingoru: Oct 20, 2025, 08:31 AM UTC
Resolved: Oct 20, 2025, 05:22 PM UTC
Duration: 8h 50m

Affected: Engine

Timeline · 3 updates

investigating Oct 20, 2025, 08:31 AM UTC

We've spotted that GitHub does not sent webhook events for pull request approvals for some organization. We contacted GitHub support, we're currently investigating the issue to provide a workaround, we will provide an update soon.
monitoring Oct 20, 2025, 02:44 PM UTC

GitHub acknowledges the issue and has reverted the change that introduced the regression. We are monitoring the situation.
resolved Oct 20, 2025, 05:22 PM UTC

This incident has been resolved.

Read the full incident report →

Major May 16, 2025

Incident on Dashboard and Engine

Detected by Pingoru: May 16, 2025, 06:43 AM UTC
Resolved: May 16, 2025, 02:34 PM UTC
Duration: 7h 51m

Affected: DashboardEngine

Timeline · 6 updates

investigating May 16, 2025, 06:43 AM UTC

We've spotted an issue with our dashboard and our events processing. We're currently investigating the issue, and will provide an update soon.
investigating May 16, 2025, 07:08 AM UTC

We are continuing to investigate this issue.
investigating May 16, 2025, 07:36 AM UTC

We are currently experiencing an incident that is affecting the availability/performance of our services. The issue has been traced to a broader incident on our cloud hosting provider’s network, which is impacting multiple services. We are working on a workaround. We actively monitor the situation and will provide updates as we receive more information from our provider or when our workaround is ready. Thank you for your patience.
monitoring May 16, 2025, 09:38 AM UTC

Our cloud provider has resolved the underlying network issue. As a result: * Our dashboard is now fully operational. * Our processing engine is recovering and working through its backlog. We are continuing to monitor the situation and will post a final update once full recovery is confirmed. Thank you for your understanding.
monitoring May 16, 2025, 12:06 PM UTC

We are continuing to monitor for any further issues.
resolved May 16, 2025, 02:34 PM UTC

This incident has been resolved.

Read the full incident report →

Major January 10, 2025

Event processing delay

Detected by Pingoru: Jan 10, 2025, 12:05 PM UTC
Resolved: Jan 10, 2025, 01:40 PM UTC
Duration: 1h 35m

Affected: Engine

Timeline · 3 updates

identified Jan 10, 2025, 12:05 PM UTC

We identified an issue in event processing, adding delay and latency to Mergify operations.
monitoring Jan 10, 2025, 12:26 PM UTC

We've spotted that something has gone wrong. We're currently investigating the issue, and will provide an update soon.
resolved Jan 10, 2025, 01:40 PM UTC

We've spotted that something has gone wrong. We're currently investigating the issue, and will provide an update soon.

Read the full incident report →

Major December 19, 2024

Pull request Processing Delays

Detected by Pingoru: Dec 19, 2024, 03:46 PM UTC
Resolved: Dec 19, 2024, 04:53 PM UTC
Duration: 1h 7m

Affected: Engine

Timeline · 3 updates

identified Dec 19, 2024, 03:46 PM UTC

Our pull requests processing is slower than usual. We are working on solving the issue.
monitoring Dec 19, 2024, 04:00 PM UTC

We found the root cause of the slowdown and fixed it. The pull request processing latency is decreasing. It should be back to normal very soon.
resolved Dec 19, 2024, 04:53 PM UTC

This incident has been resolved.

Read the full incident report →