Claude change history

Incident updateElevated errors for Claude Opus 5.5

Elevated errors for Claude Opus 5.5

Claude reported elevated errors on Claude Opus 5.5 requests affecting claude.ai, Claude API - api.anthropic.com, Claude Code, and Claude Cowork, with major impact. The incident began at 2026-10-24 00:31 UTC and was still open when archived, open for 0 min at the last update; investigation was ongoing, with no cause or fix stated.