TL;DR

  • Addressed a race condition causing lost build records.
  • Improved security fix (SECURITY-3657) scope.
  • Standardized .../build URL behavior.

Key Changes

Jenkins 2.565, released on 2026-05-20, focuses on critical bug fixes to enhance the stability and reliability of the platform. This update from Jenkins addresses several core issues:

  • Bug Fixes:
    • A race condition in LazyBuildMixIn that could lead to the loss of build records has been resolved. This fix ensures that all build data is consistently preserved.
    • The scope of a previous security fix (SECURITY-3657) has been limited to the controller JVM, preventing unintended side effects in other areas.
    • The .../build URL now consistently uses the regular RequirePOST notice, standardizing its behavior and improving predictability.

For a complete list of changes, refer to the official Jenkins 2.565 changelog.

Impact for QA Teams

These fixes significantly improve the reliability of Jenkins build data, making it easier for QA teams to track test results and diagnose issues within their CI/CD pipelines. Stable build records are vital for effective test automation, as discussed in our article on Jenkins Pipeline for Test Automation. This update helps ensure data integrity for better decision-making.