Heroku Service Degradation

Timeline

1. 15:03 UTC Heroku status page · Reported Heroku Service Degradation
2. 15:03 UTC Heroku status page · Investigating Heroku engineers are investigating.
3. 15:40 UTC Heroku status page · Update A recent security update for Common Runtime applications in the EU region may have unintentionally enforced a stricter policy for TLS certificates used for app default domain TLS termination ( .herokuapp.com). This caused some clients to experience TLS handshake failures and to be unable to connect to apps. Engineers have identified the issue and we are working on remediating.
4. 15:55 UTC Heroku status page · Resolved Incident resolved.
5. 16:07 UTC Heroku status page · Update Engineers have remediated the issue.