Buildkite change history: Buildkite service disruption

Buildkite reported a major disruption starting 2026-05-01 02:41 UTC, lasting 49 min. The postmortem says the dashboard, Agent API, REST API and GraphQL were severely degraded for most customers between 02:29 and 02:48 UTC, preventing reliable dashboard access and causing agent communication errors. Buildkite identified a service change, announced a rollback, and subsequently reported normal service restored.