Temporal Cloud change history: Increased errors on Temporal Cloud control plane, Cloud Ops API, and Temporal UI

Temporal Cloud reported a critical incident causing increased errors and timeouts across its control plane, Cloud Ops API, and Temporal UI, starting 2026-10-05 20:23 UTC. A fix was implemented by 2026-10-05 20:39 UTC; normal operation was confirmed at resolution on 2026-10-05 20:52 UTC, after 28 min.