GitHub Status

Aug 11, 2025

No incidents reported today.

Aug 10, 2025

No incidents reported.

Aug 9, 2025

No incidents reported.

Aug 8, 2025

No incidents reported.

Aug 7, 2025

No incidents reported.

Aug 6, 2025

No incidents reported.

Aug 5, 2025

Incident with Pull Requests

Resolved - At 15:33 UTC on August 5, 2025, we initiated a production database migration to drop a column from a table backing pull request functionality. While the column was no longer in direct use, our ORM continued to reference the dropped column in a subset of pull request queries. As a result, there were elevated error rates across pushes, webhooks, notifications, and pull requests with impact peaking at approximately 4% of all web and REST API traffic.

We mitigated the issue by deploying a change that instructed the ORM to ignore the removed column. Most affected services recovered by 16:13 UTC. However, that fix was applied only to our largest production environment. An update to some of our custom and canary environments did not pick up the fix and this triggered a secondary incident affecting ~0.1% of pull request traffic, which was fully resolved by 19:45 UTC.

While migrations have protections such as progressive roll-out first targeting validation environments and acknowledge gates, this incident identified an application monitoring gap that would have prevented continued rollout when impact was observed. We will add additional automation and safeguards to prevent future incidents without requiring human intervention. We are also already working on a way to streamline some types of changes across environments, which would have prevented the second incident from occurring.
Aug 5, 19:46 UTC

Update - Pull Requests is operating normally.
Aug 5, 19:46 UTC

Update - We continue to investigate issues with PRs. Impact remains limited to less than 2% of users.
Aug 5, 19:20 UTC

Update - We continue to investigate issues with PRs impacting less than 2% of customers.
Aug 5, 18:49 UTC

Update - We continue to investigate issues with PRs impacting less than 2% of customers.
Aug 5, 18:23 UTC

Update - We're seeing issues related to PR are investigating. Less than 2% of users are impacted.
Aug 5, 18:07 UTC

Investigating - We are investigating reports of degraded performance for Pull Requests
Aug 5, 17:53 UTC

Incident with pull requests

Resolved - At 15:33 UTC on August 5, 2025, we initiated a production database migration to drop a column from a table backing pull request functionality. While the column was no longer in direct use, our ORM continued to reference the dropped column in a subset of pull request queries. As a result, there were elevated error rates across pushes, webhooks, notifications, and pull requests with impact peaking at approximately 4% of all web and REST API traffic.

We mitigated the issue by deploying a change that instructed the ORM to ignore the removed column. Most affected services recovered by 16:13 UTC. However, that fix was applied only to our largest production environment. An update to some of our custom and canary environments did not pick up the fix and this triggered a secondary incident affecting ~0.1% of pull request traffic, which was fully resolved by 19:45 UTC.

While migrations have protections such as progressive roll-out first targeting validation environments and acknowledge gates, this incident identified an application monitoring gap that would have prevented continued rollout when impact was observed. We will add additional automation and safeguards to prevent future incidents without requiring human intervention. We are also already working on a way to streamline some types of changes across environments, which would have prevented the second incident from occurring.
Aug 5, 16:14 UTC

Update - Actions is operating normally.
Aug 5, 16:14 UTC

Update - Pull Requests is operating normally.
Aug 5, 16:14 UTC

Update - Issues is operating normally.
Aug 5, 16:14 UTC

Update - Webhooks is operating normally.
Aug 5, 16:14 UTC

Update - Git Operations is operating normally.
Aug 5, 16:13 UTC

Update - We have fully mitigated this issue and all services are operating normally.
Aug 5, 16:13 UTC

Update - Webhooks is experiencing degraded performance. We are continuing to investigate.
Aug 5, 16:08 UTC

Update - Pull Requests is experiencing degraded performance. We are continuing to investigate.
Aug 5, 16:06 UTC

Update - We have identified a change that was made in the Pull Request area for GitHub. Users may be unable to use certain pull request and issues features and may see some webhooks impacted. We have identified the issue, taken mitigation and are starting to see recovery but will continue to monitor and post updates as we have them.
Aug 5, 16:05 UTC

Update - Webhooks is experiencing degraded availability. We are continuing to investigate.
Aug 5, 15:56 UTC

Update - Git Operations is experiencing degraded performance. We are continuing to investigate.
Aug 5, 15:55 UTC

Update - Pull Requests is experiencing degraded availability. We are continuing to investigate.
Aug 5, 15:54 UTC

Update - Actions is experiencing degraded performance. We are continuing to investigate.
Aug 5, 15:51 UTC

Update - Pull Requests is experiencing degraded performance. We are continuing to investigate.
Aug 5, 15:51 UTC

Investigating - We are investigating reports of degraded performance for Issues and Webhooks
Aug 5, 15:42 UTC

Aug 4, 2025

No incidents reported.

Aug 3, 2025

No incidents reported.

Aug 2, 2025

No incidents reported.

Aug 1, 2025

Disruption with some GitHub services

Resolved - Between 06:04 UTC to 10:55 UTC on August 1, 2025, 100% of users attempting to sign up with an email and password experienced errors. Social signup was not affected. Once the problem became clear, the offending code was identified and a change was deployed to resolve the issue. We are adding additional monitoring to our sign-up process to improve our time to detection.
Aug 1, 10:55 UTC

Update - We are working on a mitigation to an issue preventing some users from signing up with email and password. Social signup methods remain available.
Aug 1, 10:26 UTC

Update - We have identified an issue preventing some new users from signing up. We are working to mitigate.
Aug 1, 09:39 UTC

Investigating - We are currently investigating this issue.
Aug 1, 09:20 UTC

Jul 31, 2025

No incidents reported.

Jul 30, 2025

No incidents reported.

Jul 29, 2025

Increase in 429s for Git Operations

Resolved - Public Summary Draft
Between July 28, 2025 16:31 UTC to July 29, 2025 12:05 UTC users saw degraded Git Operations for raw file downloads. On average, the error rate was .005%, with a peak error rate of 3.89%. This was due to a sustained increase in unauthenticated repository traffic.

We mitigated the incident by applying regional rate limiting, rolling back a service that was unable to scale with the additional traffic, and addressed a bug that impacted the caching of raw requests. Additionally, we horizontally scaled several dependencies of the service to appropriately handle the increase in traffic.

We are working on improving our time to detection and have implemented controls to prevent similar incidents in future.
Jul 29, 12:05 UTC

Update - Continued monitoring is showing that impact has been mitigated and normal service operation has been restored.

We are going to resolve the incident at this time. Thank you for your patience as we investigated this problem.
Jul 29, 12:05 UTC

Update - We identified and removed unhealthy hosts from our system. This has led to a reduction of 429s and a return to normal operating conditions.

We are continuing to monitor recovery and will resolve the incident once we are confident the impact has been mitigated.
Jul 29, 11:32 UTC

Update - We are seeing an increase in 429s when retrieving git artifacts from GitHub.com. This is manifesting in many ways, for example, in failed GitHub Actions workflow runs.

We have our engineers working on mitigation and we will provide more information as we have it. Thank you for your patience.
Jul 29, 11:00 UTC

Investigating - We are investigating reports of degraded performance for Actions and Git Operations
Jul 29, 10:41 UTC

GitHub Enterprise Importer migrations are stalled

Resolved - Between approximately 21:41 UTC July 28th and 03:15 UTC July 29th, GitHub Enterprise Importer (GEI) operated in a degraded state where migrations could not be processed.

Our investigation found that a component of the GEI infrastructure had been improperly taken out of service and could not be restored to its previous configuration.
This necessitated the provisioning of new resources to resolve the incident.

As a result, customers will need to add our new IP range to the following IP allow lists, if enabled:
- The IP allow list on your destination GitHub.com organization or enterprise
- If you're running migrations from GitHub.com, the IP allow list on your source GitHub.com organization or enterprise
- If you're running migrations from a GitHub Enterprise Server, Bitbucket Server or Bitbucket Data Center instance, the allow list on your configured Azure Blob Storage or -- Amazon S3 storage account
- If you're running migrations from Azure DevOps, the allow list on your Azure DevOps organization

The new GEI IP ranges for inclusion in applicable IP allow lists are:
- 20.99.172.64/28
- 135.234.59.224/28

The following IP ranges are no longer used by GEI and can be removed from all applicable IP allow lists:
- 40.71.233.224/28
- 20.125.12.8/29

Users who have run migrations using GitHub Enterprise Importer in the past 90 days will receive email alerts about this change.
Jul 29, 03:15 UTC

Update - This incident is resolved, we will follow up with a detailed root cause analysis as soon as possible.

As part of mitigation, some existing IP ranges were replaced. Migrations with customer owned storage that have IP allow lists enabled will require adding new IP ranges to your IP allow lists to prevent migrations from failing.
- 20.99.172.64/28
- 135.234.59.224/28
Jul 29, 03:15 UTC

Update - We have deployed mitigations and are working to verify.
Jul 29, 02:32 UTC

Update - The team is continuing its work to mitigate this incident.
Jul 29, 01:23 UTC

Update - We're continuing to work to mitigate this issue, customers will continue to see stalled migrations in the meantime.
Jul 29, 00:45 UTC

Update - We continue to work to mitigate this issue.
Jul 28, 23:24 UTC

Update - We are still working to mitigate the issue.
Jul 28, 22:49 UTC

Update - We have identified the issue and we're working to mitigate.
Jul 28, 22:12 UTC

Investigating - We are currently investigating this issue.
Jul 28, 21:41 UTC

Incident with Issues, API Requests and Pull Requests

Resolved - Between July 28, 2025, 22:23:00 UTC and July 29, 2025 02:06:00 UTC, GitHub experienced degraded performance across multiple services including API, Issues, GraphQL and Pull Requests. During this time, approximately 4% of Web and API requests resulted in 500 errors.

This incident was caused by DNS resolution failure while decommissioning infrastructure hosts. We resolved the incident by removing references to the stale hosts.

We are working to improve our host replacement process by correcting our automatic host ejection behavior and by ensuring configuration is updated before hosts are decommissioned. This will prevent similar issues in the future.
Jul 29, 02:06 UTC

Update - Pull Requests is operating normally.
Jul 29, 02:05 UTC

Update - Mitigation has deployed. We are seeing recovery across all impacted services.
Jul 29, 02:04 UTC

Update - Issues is operating normally.
Jul 29, 02:03 UTC

Update - Team is deploying a mitigation for this incident. We will update again once we have verified the fix.
Jul 29, 01:52 UTC

Update - Approximately 4% of requests to impacted services continue to error. The team is continuing its work to mitigate this incident.
Jul 29, 00:51 UTC

Update - Team is continuing to look into networking issues. We will keep users updated on progress towards mitigation.
Jul 29, 00:02 UTC

Update - Some GitHub services continue to experience degraded performance. Team is looking into networking issues. We will continue to keep users updated on progress towards mitigation.
Jul 28, 23:18 UTC

Update - Some GitHub services are experiencing degraded performance. Team is currently investigating to determine a cause and mitigation.
Jul 28, 22:42 UTC

Investigating - We are investigating reports of degraded performance for API Requests, Issues and Pull Requests
Jul 28, 22:40 UTC

Disruption with some GitHub services

Resolved - Between July 28, 2025 16:31 UTC to July 29, 2025 12:05 UTC users saw degraded Git Operations for raw file downloads. On average, the error rate was .005%, with a peak error rate of 3.89%. This was due to a sustained increase in unauthenticated repository traffic.

We mitigated the incident by applying regional rate limiting, rolling back a service that was unable to scale with the additional traffic, and addressed a bug that impacted the caching of raw requests. Additionally, we horizontally scaled several dependencies of the service to appropriately handle the increase in traffic.

We are working on improving our time to detection and have implemented controls to prevent similar incidents in future.
Jul 29, 01:23 UTC

Update - We continue to work to mitigate this issue.
Jul 29, 01:02 UTC

Update - We are investigating additional ways to mitigate this issue.
Jul 29, 00:12 UTC

Update - We continue to work to mitigate this issue.
Jul 28, 23:16 UTC

Update - Some customers continue to experience errors when accessing raw files and archives. We are working on a mitigation to address the issue.
Jul 28, 21:50 UTC

Update - We are actively setting up additional rate limiting to address increased requests from scraping and investigating the need to add additional hosts.
Jul 28, 21:06 UTC

Update - We are seeing more of https://github.blog/changelog/2025-05-08-updated-rate-limits-for-unauthenticated-requests/ and working to mitigate it.
Jul 28, 20:32 UTC

Update - Provisioning of new hosts is underway. We are still investigating other fixes.
Jul 28, 19:29 UTC

Update - We are adding additional capacity to our infrastructure to mitigate this issue while still investigating.
Jul 28, 18:55 UTC

Update - We are still actively investigating this issue.
Jul 28, 18:11 UTC

Update - Git Operations is experiencing degraded performance. We are continuing to investigate.
Jul 28, 17:30 UTC

Update - We are investigating errors affecting some archive and raw file downloads. Users may experience rate limit warnings or server errors until this is resolved.
Jul 28, 17:17 UTC

Investigating - We are currently investigating this issue.
Jul 28, 16:50 UTC

Jul 28, 2025

All Systems Operational

About This Site

Past Incidents