➔ Jenkins 2.572 - Deserialization Guardrails and UI Fixes
Jenkins jenkins-2.572 was published on July 7, 2026 as a regular weekly release, not a prerelease. The most important change for administrators is tighter deserialization behavior in core, with new limits around PersistedList, COWL, and Object fields.
➔ Jenkins 2.571 - Weekly UI and Security Updates
Jenkins jenkins-2.571 was published on July 1, 2026 as a regular weekly release, not a prerelease. The main user visible work is around Manage Jenkins polish: the System Log page gets refinement, breadcrumb overflow rendering is fixed, and the odd Apply button animation issue tracked as JENKINS-73906 is addressed.
➔ Jenkins 2.570 - SSH Key Search and UI Fixes
Jenkins published the jenkins-2.570 release on June 23, 2026. This weekly release is not marked as a prerelease, and the most useful operator change is broader SSH key discovery for ECDSA and Ed25519 keys. It also cleans up several UI bugs around Build History, build logs, and dynamic form lists.
➔ Jenkins 2.568 - Deserialization and XSS Security Fixes
Jenkins weekly release jenkins-2.568 shipped on June 10, 2026 as a security focused update. The headline fix is a high severity deserialization flaw in config.xml handling that could let authenticated users impersonate others or read controller files. Operators on weekly 2.567 or earlier should plan an upgrade before the next maintenance window.