Disruption with Copilot chat and Copilot Coding Agent
What happened
On April 22, 2026, between 15:16 UTC and 19:18 UTC, users experienced errors when interacting with Copilot Chat on github.com and Copilot Cloud Agent. During this time, users were unable to use Copilot Chat or Copilot Cloud Agent. Copilot Memory (in preview) was not available to Copilot agent sessions during this time. The issue was caused by an infrastructure configuration change that resulted in connectivity issues with our databases. The team identified the cause and restored connectivity to the database. Copilot Chat and Cloud Agent for github.com were restored by 18:16 UTC. Remaining regional deployments were restored incrementally, with full resolution at 19:18 UTC. We have taken steps to prevent similar infrastructure changes from causing these kinds of database operations in the future.
Timeline
- Resolved · Apr 22, 19:18 UTC
On April 22, 2026, between 15:16 UTC and 19:18 UTC, users experienced errors when interacting with Copilot Chat on github.com and Copilot Cloud Agent. During this time, users were unable to use Copilot Chat or Copilot Cloud Agent. Copilot Memory (in preview) was not available to Copilot agent sessions during this time. The issue was caused by an infrastructure configuration change that resulted in connectivity issues with our databases. The team identified the cause and restored connectivity to the database. Copilot Chat and Cloud Agent for github.com were restored by 18:16 UTC. Remaining regional deployments were restored incrementally, with full resolution at 19:18 UTC. We have taken steps to prevent similar infrastructure changes from causing these kinds of database operations in the future.
More from GitHub
Full history| Started | Incident | Impact | Duration |
|---|---|---|---|
| Sep 2310:11 UTC | Incident across several services | minor | Ongoing |
| Sep 2022:13 UTC | Incident with Pull Requests | minor | 1h 9m |
| Sep 1720:59 UTC | Elevated rate of errors for OpenAI models provided by Copilot | minor | 50m |
| Sep 1607:20 UTC | Degradation with Gemini 3.8 Flash | major | 10h 28m |
| Sep 1519:11 UTC | Disruption with some GitHub services | minor | 49m |
| Sep 1509:47 UTC | Disruption with some GitHub services | minor | 1h 30m |
Also caused by configuration change
All| Started | Vendor | Incident | Impact | Duration |
|---|---|---|---|---|
| Sep 2218:20 UTC |  Twilio | Phone Number APIs and Console Were Returning Incorrect 404 ResponsesTwilio | none | 0m |
| Sep 1622:30 UTC |  Cloudflare | Hyperdrive Elevated Origin Connection Failure RatesCloudflare | none | 0m |
| Sep 1211:04 UTC |  Slack | Some customers experiencing blurry image previews and download issuesSlack | minor | 8h 56m |
| Sep 1107:18 UTC |  Snowflake | INC20000213Snowflake | critical | 6h 1m |
| Sep 407:34 UTC | Snowflake | INC20000199Snowflake | critical | 2h 36m |
| Sep 109:58 UTC | Snowflake | INC20000190Snowflake | major | 3h 52m |
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