Claude change history: Elevated errors on Claude Code and Claude Cowork

Claude reported a major incident affecting Claude Cowork and Claude Code on the web from 2026-08-28 17:22 UTC to 2026-08-28 20:21 UTC, lasting 2 h 59 min. Some sessions failed to start or disconnected mid-task due to an upstream cloud provider issue; affected sessions could be retried. A mitigation was applied before resolution.