ChatGPT change history: ChatGPT Work seeing elevated errors and latency

ChatGPT Work had a major incident with elevated errors and latency, preventing users across multiple subscription plans from starting or continuing tasks; Plus users were particularly impacted, with Work mode unavailable. It started at 2026-08-31 15:04 UTC and resolved at 2026-08-31 20:28 UTC, lasting 5 h 23 min. A mitigation was applied, and services fully recovered.