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GitHub Outage History

Daily provider-status observations and published incident history for GitHub.

Degraded performance

GitHub is reporting degraded performance. Verified . Official provider source.

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69.4% of 49 verified observed days had no reported provider issue

90-Day Trend

Jul 15Oct 12

Dashed calendar markers below identify legacy observations whose source-at-observation was not recorded.

Monthly Status Summary

Month Issue-free days Days Tracked Days with issues
September 2026 76.7% 30 7

This percentage summarizes normalized provider-status observations by calendar day. It is not duration-based, component-weighted, or contractual uptime. See the methodology and limitations.

Recorded Daily Status (Last 91 Days)

Jul 14 Today
Legacy observation Operational Degraded Partial Outage Major Outage Maintenance No Data

Incident History

September 2026
Incident across several services
minor Observed active window 18h 48m

View incident details and source

Started:

API Requests
investigating
We are continuing to process the backlog of issue label updates for Projects. Label changes may still be delayed. All other services are operating normally.
investigating
We are continuing to process the backlog of issue label updates for Projects. Users may still see delays before label changes are reflected in Projects. All other services are operating normally.
investigating
We've deployed a change intended to accelerate processing of the backlog of issue label updates in Projects. A sizable backlog still remains and we continue working through it. All other services are operating normally. We will provide another update within the next hour.
investigating
Updates to issue labels may be delayed in being reflected in Projects. We are continuing to deploy a change that will accelerate processing of the backlog of label updates. All other services are available. We will provide another update within the next hour.
investigating
We are preparing to deploy a change that will mitigate the impact.
investigating
Continuing to investigate the lag that may be experienced in issue labels being accurately reflected in Projects. We are working on alternate solutions to process the backlog of label updates.
investigating
We will post another update in approximately one hour to share our progress.
investigating
Updates to issue labels may be delayed in being reflected in Projects by about ~10 minutes. We have added some capacity to work through the backlog more quickly, but it'll likely be a few hours to complete processing the full backlog of messages. All other services are available.
investigating
Users may experience stale Project search results. We are working to increase indexing speed. All other services are available.
investigating
We are seeing recovery for Projects. Users may experience stale search results for Projects while indexing catches up.
investigating
The degradation affecting API Requests has been mitigated. We are monitoring to ensure stability.
investigating
Database replicas have been restored. Org creation and the GitHub API are no longer degraded.
investigating
Database replicas have detached. We're working to restore the database replicas. Users may experience issues beyond creating organizations and a degraded experience with the GitHub API and Projects.
investigating
We are investigating reports of degraded performance for API Requests
Incident with Pull Requests
minor Observed active window 1h 11m

View incident details and source

Started:

Pull Requests
monitoring
A git fileserver issue caused a brief delay in creating some merge commits - we've isolated the underlying server and already observed recovery.
monitoring
The degradation affecting Pull Requests has been mitigated. We are monitoring to ensure stability.
investigating
We are investigating reports of degraded performance for Pull Requests
Elevated rate of errors for OpenAI models provided by Copilot
minor Observed active window 51m

View incident details and source

Started:

Copilot AI Model Providers
monitoring
We are experiencing degraded availability for GPT-5.6 Luna, GPT-5.6 Terra, GPT-5.6 Sol, GPT-6 Astra, GPT-5.3-Codex in Copilot products and IDE surfaces. This is due to an issue with an upstream model provider. The provider is working to mitigate the problem and we are monitoring recovery. We recommend choosing another model or selecting 'Auto' to continue using Copilot.
investigating
We are investigating reports of degraded performance for Copilot AI Model Providers
Degradation with Gemini 3.8 Flash
major Observed active window 10h 29m

View incident details and source

Started:

Copilot AI Model Providers
monitoring
The degradation affecting Copilot AI Model Providers has been mitigated. We are monitoring to ensure stability.
investigating
Copilot AI Model Providers is experiencing degraded performance. We are continuing to investigate.
investigating
Copilot AI Model Providers is experiencing degraded performance. We are continuing to investigate.
investigating
We are investigating reports of degraded availability for Copilot AI Model Providers
Disruption with some GitHub services
minor Observed active window 53m

View incident details and source

Started:

monitoring
The degradation has been mitigated. We are monitoring to ensure stability.
investigating
We are investigating reports of impacted performance for some GitHub services.
Disruption with some GitHub services
minor Observed active window 1h 32m

View incident details and source

Started:

Copilot AI Model Providers
investigating
We continue to monitor intermittent errors affecting Claude Fable 5.1 in some Copilot products and integrated development environments. Customer-facing metrics have recovered, and we are awaiting confirmation from our upstream provider that the issue will not recur. Customers can select another model or Auto in the meantime.
investigating
We continue to investigate intermittent errors affecting Claude Fable 5.1 in some Copilot products and integrated development environments. Customers can use another model or select Auto while we monitor the situation.
investigating
Copilot AI Model Providers is experiencing degraded performance. We are continuing to investigate.
monitoring
We are investigating degraded availability for Claude Fable 5.1, affecting some Copilot products and integrated development environments. The issue is caused by a problem with our upstream model provider. Customers can use another model or select Auto while we investigate.
investigating
We are investigating reports of impacted performance for some GitHub services.
Actions Larger Runner Jobs for some customers may be slow to start
minor Observed active window 59m

View incident details and source

Started:

monitoring
The degradation has been mitigated. We are monitoring to ensure stability.
investigating
We are investigating reports of impacted performance for some GitHub services.
Incident with several GitHub Services
critical Observed active window 1h 28m

View incident details and source

Started:

API Requests Issues Pull Requests Actions Pages
investigating
Pull Requests is experiencing degraded performance. We are continuing to investigate.
investigating
We have reduced load on this cluster with internal load-shedding and are seeing signs of recovery but continue to monitor
investigating
We're seeing increased database replication delays on collab which is causing increased error rates in authorization endpoints and follow-on increased error rates across the system - we are investigating
investigating
Actions is experiencing degraded performance. We are continuing to investigate.
investigating
We are investigating reports of degraded availability for API Requests, Issues, Pages and Pull Requests
Degradation in repos contents API
minor Observed active window 22m

View incident details and source

Started:

investigating
We are investigating reports of impacted performance for some GitHub services.
Disruption with Copilot Code Review
major Observed active window 1h 50m

View incident details and source

Started:

investigating
We are applying the mitigation and expect recovery within approximately 30 minutes.
investigating
Some users may be experiencing failures when using Copilot code review. We have identified the root cause and are working on a mitigation.
investigating
We are investigating reports of impacted performance for some GitHub services.

Legacy Incident Archive

128 archived records restored. These records predate source-at-observation attestation. They are shown as historical ServiceAlert records only and do not establish a provider-reported incident, resolution, duration, or current active state.

March 2026
Git operations for users in the west coast are experiencing an increase in latency
minor Source not attested
Last archived state: resolved
View archived record details
investigating
We are seeing early signs of improvement. We are working on one more small change to further improve traffic routing on the west coast.
investigating
We have completed the rollout of our new network path and are monitoring its impact.
investigating
We are beginning the rollout of our new network path. During this change, users will continue to see higher latency from the west coast. We will provide another update when the rollout is complete.
investigating
We are working to enable a new network path in the west coast to reduce load and will monitor the impact on latency for Git Operations
investigating
We are still seeing elevated latency for Git operations in the west coast and are continuing to investigate
investigating
We are redirecting traffic back to our Seattle region and customers should see a decrease in latency for Git operations
investigating
We are investigating reports of degraded performance for Git Operations
Issues with Copilot Coding Agent
major Source not attested
Last archived state: resolved
View archived record details
investigating
Copilot is operating normally.
investigating
We are investigating reports that Copilot Coding Agent session logs are not available in the UI.
investigating
Copilot is experiencing degraded performance. We are continuing to investigate.
investigating
We are investigating reports of impacted performance for some GitHub services.
Disruption with Copilot Coding Agent sessions
minor Source not attested
Last archived state: resolved
View archived record details
investigating
We have rolled out our mitigation and are seeing recovery for Copilot Coding Agent sessions
investigating
We are seeing widespread issues starting and viewing Copilot Agent sessions. We have a hypothesis for the cause and are working on remediation.
investigating
We are investigating reports of impacted performance for some GitHub services.
Disruption with some GitHub services
minor Source not attested
Last archived state: resolved
View archived record details
investigating
We continue to investigate the slow performance of Git Operations affecting the US West Coast.
investigating
We continue to investigate degraded performance for git operations from the US West Coast.
investigating
We are continuing to investigate degraded performance for git operations from the US West Coast.
investigating
We are experiencing increased latency when performing git operations, especially large pushes and pulls from customers on the west coast of the US. We are not seeing an increase in failures. We are continuing to investigate.
investigating
Git Operations is experiencing degraded performance. We are continuing to investigate.
investigating
We are investigating reports of impacted performance for some GitHub services.
Webhook delivery is delayed
minor Source not attested
Last archived state: resolved
View archived record details
investigating
We are seeing recovery and are continuing to monitor the latency for webhook deliveries
investigating
We are investigating reports of degraded performance for Webhooks
Errors starting and connecting to Codespaces
minor Source not attested
Last archived state: resolved
View archived record details
investigating
We are investigating reports of users experiencing errors when starting or connecting to Codespaces. Some users may be unable to access their development environments during this time. We are working to identify the root cause and will implement a fix as soon as possible.
investigating
We are investigating reports of impacted performance for some GitHub services.
Degraded performance for various services
minor Source not attested
Last archived state: resolved
View archived record details
investigating
We have deployed mitigations and are actively monitoring for recovery. We'll post another update by 17:00 UTC.
investigating
We are investigating intermittent performance degradation affecting Actions, Feeds, Issues, Package Registry, Profiles, Registry Metadata, Star, and User Dashboard. Users may experience elevated error rates and slower response times when accessing these services. We have identified a potential cause and are implementing mitigations to restore normal service. We'll post another update by 16:15 UTC.
investigating
Packages is experiencing degraded performance. We are continuing to investigate.
investigating
We are investigating reports of issues with service(s): Actions, Feeds, Issues, Profiles, Registry Metadata, Star, User Dashboard. We will continue to keep users updated on progress towards mitigation.
investigating
We are investigating reports of degraded performance for Actions and Issues
Degraded Codespaces experience
minor Source not attested
Last archived state: resolved
View archived record details
investigating
Codespaces IPs are no longer being blocked from Visual Studio Marketplace operations and we are monitoring for full recovery
investigating
We're seeing intermittent failures downloading from the extension marketplace from codespaces, caused by IP blocks for some codespaces. We're working to remove those blocks.
investigating
We're seeing intermittent failures downloading from the extension marketplace from codespaces and are investigating.
investigating
We're seeing partial recovery for the issue affecting extension installation in newly created Codespaces. Some users may still experience degraded functionality where extensions hit errors. The team continues to investigate the root cause while monitoring the recovery.
investigating
We have deployed a fix for the issue affecting extension installation in newly created Codespaces. New Codespaces are now being created with working extensions. We'll post another update by 15:30 UTC.
investigating
We are continuing to investigate an issue where extensions fail to install in newly created Codespaces. Users can create and access Codespaces, but extensions will not be operational, resulting in a degraded experience. The team is working on a fix. All newly created Codespaces are affected. We'll post another update by 15:00 UTC.
investigating
We're investigating an issue where extensions fail to install in newly created Codespaces. Users can still create and access Codespaces, but extensions will not be operational, resulting in a degraded development experience. Our team is actively working to identify and resolve the root cause. We'll post another update by 14:00 UTC.
investigating
We are investigating reports of degraded performance for Codespaces
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