Heroku Service Degradation

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 (<app>.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.

Trouble Accessing Historical Messages With Custom Data Retention Policies Enabled

<p>Users with custom data retention policies enabled might be unable to see or load older messages. We apologize for the trouble and we'll share more news as it becomes available.</p>