Buildkite change history: Delays in Hosted Agents job dispatch

Buildkite reported a major Hosted Agents job-dispatch degradation affecting Linux (AMD64), Linux (ARM64), and MacOS from 2026-09-02 14:45 UTC to 2026-09-02 15:51 UTC, lasting 1 h 5 min. Self-hosted agents were unaffected; Buildkite worked through the delayed-job backlog and confirmed dispatch delays were resolved.