Trello change history: Multiple Atlassian services experiencing degraded performance

Trello reported a major degradation from 2025-11-21 14:55 UTC to 2025-11-21 16:49 UTC, lasting 1 h 54 min. Customers intermittently could not view or update boards and may have had authentication and new GitHub/Slack integration issues. The postmortem attributed the event to an edge proxy software bug; service was restored for all affected customers.