GitHub Status

Sep 27, 2025

No incidents reported today.

Sep 26, 2025

No incidents reported.

Sep 25, 2025

Resolved - 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.
Sep 25, 17:36 UTC

Update - We are seeing issues related to our ability to serve raw file access across a small percentage of our requests.
Sep 25, 17:06 UTC

Investigating - We are currently investigating this issue.
Sep 25, 17:00 UTC

Sep 24, 2025

Disruption with some GitHub services

Resolved - 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.
Sep 24, 15:36 UTC

Update - We are seeing delays in email delivery, which is impacting notifications and user signup email verification. We are investigating and working on mitigation.
Sep 24, 14:55 UTC

Investigating - We are currently investigating this issue.
Sep 24, 14:46 UTC

Claude Opus 4 is experiencing degraded performance

Resolved - 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.
Sep 24, 09:18 UTC

Update - Between around 8:16 UTC and 8:51 UTC we saw elevated errors on Claude Opus 4 and Opus 4.1, up to 49% of requests were failing. This has recovered to around 4% of requests failing, we are monitoring recovery.
Sep 24, 09:16 UTC

Investigating - We are currently investigating this issue.
Sep 24, 09:08 UTC

Incident with Copilot

Resolved - 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.
Sep 24, 00:26 UTC

Update - The issues with our upstream model provider have been resolved, and Claude Sonnet 3.7 and Claude Sonnet 4 are once again available in Copilot Chat, VS Code and other Copilot products.

We will continue monitoring to ensure stability, but mitigation is complete.

Sep 24, 00:26 UTC

Update - We are experiencing degraded availability for the Claude Sonnet 3.7 and Claude Sonnet 4 model in Copilot Chat, VS Code and other Copilot products. This is due to an issue with an upstream model provider. We are working with them to resolve the issue.

Other models are available and working as expected.
Sep 23, 22:22 UTC

Investigating - We are investigating reports of degraded performance for Copilot
Sep 23, 22:22 UTC

Sep 23, 2025

Incident with Pages and Actions

Resolved - On September 23, between 17:11 and 17:40 UTC, customers experienced failures and delays when running workflows on GitHub Actions and building or deploying GitHub Pages. The issue was caused by a faulty configuration change that disrupted service to service communication in GitHub Actions. During this period, in-progress jobs were delayed and new jobs would not start due to a failure to acquire runners, and about 30% of all jobs failed. GitHub Pages users were unable to build or deploy their Pages during this period.

The offending change was rolled back within 15 minutes of its deployment, after which Actions workflows and Pages deployments began to succeed. Actions customers continued to experience delays for about 15 minutes after the rollback was completed while services worked through the backlog of queued jobs. We are planning to implement additional rollout checks to help detect and prevent similar issues in the future.
Sep 23, 17:41 UTC

Update - We are investigating delays in Actions Workflows.
Sep 23, 17:33 UTC

Investigating - We are investigating reports of degraded performance for Actions and Pages
Sep 23, 17:28 UTC

Disruption with some GitHub services

Resolved - 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.
Sep 23, 17:40 UTC

Update - We're seeing delays related to outbound emails and are investigating.
Sep 23, 16:50 UTC

Investigating - We are currently investigating this issue.
Sep 23, 16:46 UTC

Sep 22, 2025

No incidents reported.

Sep 21, 2025

No incidents reported.

Sep 20, 2025

No incidents reported.

Sep 19, 2025

No incidents reported.

Sep 18, 2025

No incidents reported.

Sep 17, 2025

Incident with Codespaces

Resolved - On September 17, 2025 between 13:23 and 16:51 UTC some users in West Europe experienced issues with Codespaces that had shut down due to network disconnections and subsequently failed to restart. Codespace creations and resumes were failed over to another region at 15:01 UTC. While many of the impacted instances self-recovered after mitigation efforts, approximately 2,000 codespaces remained stuck in a "shutting down" state while the team evaluated possible methods to recover unpushed data from the latest active session of affected codespaces. Unfortunately, recovery of that data was not possible. We unblocked shutdown of those codespaces, with all instances either shut down or available by 8:26 UTC on September 19.

The disconnects were triggered by an exhaustion of resources in the network relay infrastructure in that region, but the lack of self-recovery was caused by an unhandled error impacting the local agent, which led to an unclean shutdown.

We are improving the resilience of the local agent to disconnect events to ensure shutdown of codespaces is always clean without data loss. We have also addressed the exhausted resources in the network relay and will be investing in improved detection and resilience to reduce the impact of similar events in the future.
Sep 17, 17:55 UTC

Update - We have confirmed the original mitigation to failover has resolved the issue causing Codespaces to become unavailable. We are evaluating if there is a path to recover unpushed data from the approximately 2000 Codespaces that are currently in the shutting down state. We will be resolving this incident and will detail the next steps in our public summary.
Sep 17, 17:55 UTC

Update - For Codespaces that were stuck in the shutting down state and have been resumed, we've identified an issue that is causing the contents Codespace to be irrecoverably lost which has impacted approximately 250 Codespaces. We are actively working on a mitigation to prevent any more Codespaces currently in this state from being forced to shut down to prevent the potential data loss.
Sep 17, 16:51 UTC

Update - We're continuing to see improvement with Codespaces that were stuck in in the shutting down state and we anticipate the remaining should self resolve in about an hour.
Sep 17, 16:07 UTC

Update - Some users with Codespaces in West Europe were unable to connect to Codespaces, we have failed over that region and users should be able to create new Codespaces. If a user has a Codespace in a shutting down state, we are still investigating potential fixes and mitigations.
Sep 17, 15:31 UTC

Investigating - We are investigating reports of degraded performance for Codespaces
Sep 17, 15:04 UTC

Sep 16, 2025

Unauthenticated LFS requests for public repos are returning unexpected 401 errors

Resolved - 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.
Sep 16, 18:30 UTC

Update - We have mitigated the issue and are monitoring the results
Sep 16, 18:29 UTC

Update - Git Operations is experiencing degraded performance. We are continuing to investigate.
Sep 16, 18:02 UTC

Update - A recent change to our API routing inadvertently added an authentication requirement to the anonymous route for LFS requests. We're in the process of fixing the change, but in the interim retrying should eventually succeed.
Sep 16, 17:55 UTC

Investigating - We are currently investigating this issue.
Sep 16, 17:55 UTC

Creating GitHub apps using the REST API will fail with a 401 error

Resolved - Between 16:26 UTC on September 15th and 18:30 UTC on September 16th, anonymous REST API calls to approximately 20 endpoints were incorrectly rejected because they were not authenticated. While this caused unauthenticated requests to be rejected by these endpoints, all authenticated requests were unaffected, and no protected endpoints were exposed.

This resulted in 100% of requests to these endpoints failing at peak, representing less than 0.1% of GitHub’s overall request volume. On average, the error rate for these endpoints was less than 50% and peaked at 100% for about 26 hours over September 16th. API requests to the impacted endpoints were rejected with a 401 error code. This was due to a mismatch in authentication policies, for specific endpoints, during a system migration.

The failure to detect the errors was the result of the issue occurring for a low percentage of traffic.

We mitigated the incident by reverting the policy in question, and correcting the logic associated with the degraded endpoints. We are working to improve our test suite to further validate mismatches, and refining our monitors for proactive detection.
Sep 16, 17:45 UTC

Update - We have mitigated the issue and are monitoring the results
Sep 16, 17:27 UTC

Update - A recent change to our API routing inadvertently added an authentication requirement to the anonymous route for creating GitHub apps. We're in the process of fixing the change, but in the interim retrying should eventually succeed.
Sep 16, 17:15 UTC

Investigating - We are currently investigating this issue.
Sep 16, 17:14 UTC

Sep 15, 2025

Repository search is degraded

Resolved - At around 18:45 UTC on Friday, September 12, 2025, a change was deployed that unintentionally affected search index management. As a result, approximately 25% of repositories were temporarily missing from search results.

By 12:45 UTC on Saturday, September 14, most missing repositories were restored from an earlier search index snapshot, and repositories updated between the snapshot and the restoration were reindexed. This backfill was completed at 21:25 UTC.

After these repairs, about 98.5% of repositories were once again searchable. We are performing a full reconciliation of the search index and customers can expect to see records being updated and content becoming searchable for all repos again between now and Sept 25.

NOTE: Users who notice missing or outdated repositories in search results can force reindexing by starring or un-starring the repository. Other repository actions such as adding topics, or updating the repository description, will also result in reindexing. In general, changes to searchable artifacts in GitHub will also update their respective search index in near-real time.

User impact has been mitigated with the exception of the 1.5% of repos that are missing from the search index. The change responsible for the search issue has been reverted, and full reconciliation of the search index is underway, expected to complete by September 23. We have added additional checks to our indexing model to ensure this failure does not happen again. We are also investigating faster repair alternatives.

To avoid resource contention and possible further issues we are currently not repairing repositories or organizations individually at this time. No repository data was lost, and other search types were not affected.
Sep 15, 21:01 UTC

Update - Most searchable repositories should again be visible in search results. Up to 1.5% of repositories may still be missing from search results.

Many different actions synchronize the repository state with the search index, so we expect natural recovery for repositories that see more frequent user and API-driven interactions.

A complete index reconciliation is underway to restore stagnant repositories that were deleted from the index. We will update again once we have a clear timeline of when we expect full recovery for those missing search results.
Sep 13, 22:39 UTC

Update - Customers are not seeing repositories they expect to see in search results. We have restored a snapshot of this search index from Fri 12 Sep at 21:00 UTC. Changes made since then will be unavailable while we work to backfill the rest of the search index. Any new changes will be available in near-real time as expected.
Sep 13, 12:49 UTC

Investigating - We are currently investigating this issue.
Sep 13, 12:44 UTC

Disruption with some GitHub services

Resolved - On September 15th between 17:55 and 18:20 UTC, Copilot experienced degraded availability for all features. This was due a partial deployment of a feature flag to a global rate limiter. The flag triggered behavior that unintentionally rate limited all requests, resulting in 100% of them returning 403 errors. The issue was resolved by reverting the feature flag which resulted in immediate recovery.

The root cause of the incident was from an undetected edge case in our rate limiting logic. The flag was meant to scale down rate limiting for a subset of users, but unintentionally put our rate limiting configuration into an invalid state.

To prevent this from happening again, we have addressed the bug with our rate limiting. We are also adding additional monitors to detect anomalies in our traffic patterns, which will allow us to identify similar issues during future deployments. Furthermore, we are exploring ways to test our rate limit scaling in our internal environment to enhance our pre-production validation process.

Sep 15, 18:28 UTC

Investigating - We are currently investigating this issue.
Sep 15, 18:21 UTC

Sep 14, 2025

No incidents reported.

Sep 13, 2025

All Systems Operational

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