v4.10.0

What's Changed

This release supports longer-lived job-dispatch streams and application-level keepalives, reducing unnecessary reconnections.

🔒 Security

• Prevent plugin cache collisions from running the wrong hooks by @ss1909 in #4610

🐛 Fixed

• Fix shutdown hangs after failed job acceptance by @tomanagle in #4556
• Reject --append fetches with BUILDKITE_COMMIT=HEAD by @ss1909 in #4608
• Respect BUILDKITE_SKIP_CHECKOUT during pipeline upload by @CerealBoy in #4609

🔧 Changed

• Let Buildkite control ping-stream lifetimes by @moskyb in #4614 + #4611
• Spread registration retries with exponential backoff and jitter by @ss1909 in #4597
• De-emphasise cache housekeeping logs by @wolfeidau in #4606

🏠 Internal

• Dependency updates by @dependabot[bot] in #4585, #4598, #4599 and #4600

New Contributors

• @tomanagle made their first contribution in #4556

Full Changelog: v4.9.0...v4.10.0