Intermittent errors with app installation token authentication

This incident has been resolved.

We have identified and are applying additional mitigation and will continue to monitor for complete mitigation.

We see significant signs of mitigation and are monitoring for full mitigation.

We are seeing signs of mitigation and are continuing to monitor for complete mitigation.  <br /><br />Next update in one hour.

We are continuing to investigate an elevated error rate of authentication failures for app installation tokens.  Next update in one hour.

We are seeing an increased rate of authentication failures for app installation tokens, affecting approximately 1% of tokens.  We are continuing to investigate.

We are investigating reports of impacted performance for some GitHub services.