GitHub Status

Degraded Gemini 2.5 Pro experience in Copilot

Update - We are continuing to work with our provider to resolve the issue where some Copilot requests using Gemini 2.5 Pro return an error indicating a bad request due to exceeding the input limit size.
Oct 02, 2025 - 02:52 UTC

Update - We are continuing to investigate and test solutions internally while working with our model provider on a deeper investigation into the cause. We will update again when we have identified a mitigation.
Oct 01, 2025 - 18:16 UTC

Update - We are testing other internal mitigations so that we can return to the higher maximum input length. We are still working with our upstream model provider to understand the contributing factors for this sudden decrease in input limits.
Oct 01, 2025 - 17:37 UTC

Update - We are experiencing a service regression for the Gemini 2.5 Pro model in Copilot Chat, VS Code and other Copilot products. The maximum input length of Gemini 2.5 prompts been decreased. Long prompts or large context windows may result in errors. 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.
Oct 01, 2025 - 16:49 UTC

Investigating - We are investigating reports of degraded performance for Copilot
Oct 01, 2025 - 16:43 UTC

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Copilot Partial Outage

Operational

Degraded Performance

Partial Outage

Major Outage

Maintenance

Past Incidents

Oct 2, 2025

Unresolved incident: Degraded Gemini 2.5 Pro experience in Copilot.

Oct 1, 2025

Degraded Performance for GitHub Actions MacOS Runners

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.
Oct 1, 16:55 UTC

Update - We are seeing some recovery for image queueing and continuing to monitor.
Oct 1, 16:27 UTC

Update - We are continuing work to restore capacity for our MacOS ARM runners.
Oct 1, 14:41 UTC

Update - Our team continues to work hard on restoring capacity for the Mac runners.
Oct 1, 13:58 UTC

Update - Work continues on restoring capacity on the Mac runners.
Oct 1, 13:12 UTC

Update - MacOS ARM runners continue to be at reduced capacity, causing queuing of jobs. Investigation is ongoing.
Oct 1, 12:32 UTC

Update - Work continues to bring the full runner capacity back online. Resources are focused on improving the recovery of certain runner types.
Oct 1, 11:51 UTC

Update - We are continuing to see recovery of some runner capacity and investigating slow recovery of certain runner types.
Oct 1, 11:11 UTC

Update - We are seeing recovery of some runner capacity, while also investigating slow recovery of certain runner types.
Oct 1, 10:30 UTC

Update - MacOS runners are coming back online and starting to process queued work.
Oct 1, 09:44 UTC

Update - We are continuing to deploy the necessary changes to restore MacOS runner capacity.
Oct 1, 08:59 UTC

Update - We have identified the cause and are deploying a change to restore MacOS runner capacity.
Oct 1, 08:27 UTC

Update - Customers using GitHub Actions Mac OS runners are experiencing job start delays and failures. We are aware of this issue and actively investigating.
Oct 1, 08:17 UTC

Update - Actions is experiencing degraded performance. We are continuing to investigate.
Oct 1, 08:09 UTC

Investigating - We are currently investigating this issue.
Oct 1, 07:59 UTC

Sep 30, 2025

No incidents reported.

Sep 29, 2025

Disruption with Gemini 2.5 Pro and Gemini 2.0 Flash in Copilot

Update - The upstream model provided has resolved the issue and we are seeing full availability for Gemini 2.5 Pro and Gemini 2.0 Flash.
Sep 29, 19:12 UTC

Update - We are experiencing degraded availability for the Gemini 2.5 Pro & Gemini 2.0 Flash models 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 29, 18:40 UTC

Investigating - We are currently investigating this issue.
Sep 29, 18:39 UTC

Disruption with some GitHub services

Update - Customers are getting 404 responses when connecting to the GitHub MCP server. We have reverted a change we believe is contributing to the impact, and are seeing resolution in deployed environments.
Sep 29, 17:28 UTC

Investigating - We are currently investigating this issue.
Sep 29, 16:45 UTC

Sep 28, 2025

No incidents reported.

Sep 27, 2025

No incidents reported.

Sep 26, 2025

No incidents reported.

Sep 25, 2025

Disruption with some GitHub services

Resolved - On September 26, 2025 between 16:22 UTC and 18:32 UTC raw file access was degraded for a small set of four repositories. On average, raw file access error rate was 0.01% and peaked at 0.16% of requests. This was due to a caching bug exposed by excessive traffic to a handful of repositories.

We mitigated the incident by resetting the state of the cache for raw file access and are working to improve cache usage and testing to prevent issues like this in the future.

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 - On September 23, 2025, between 15:29 UTC and 17:38 UTC and also on September 24, 2025 between 15:02 UTC and 15:12, email deliveries were delayed up to 50 minutes which resulted in significant delays for most types of email notifications. This occurred due to an unusually high volume of traffic which caused resource contention on some of our outbound email servers.

We have updated the configuration we use to better allocate capacity when there is a high volume of traffic and are also updating our monitors so we can detect this type of issue before it becomes a customer impacting incident.
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

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 - Between 20:06 UTC September 23 and 04:58 UTC September 24, 2025, the Copilot service experienced degraded availability for Claude Sonnet 4 and 3.7 model requests.

During this period, 0.46% of Claude 4 requests and 7.83% of Claude 3.7 requests failed.

The reduced availability resulted from Copilot disabling routing to an upstream provider that was experiencing issues and reallocating capacity to other providers to manage requests for Claude Sonnet 3.7 and 4.
We are continuing to investigate the source of the issues with this provider and will provide an update as more information becomes 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

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.