Changelog

Major enhancement

Redesign the header and navigation. pull 10245
Display plugin health score in the Plugin Manager. JENKINS-75350

Enhancement

Updates to various UI elements. Refine the appearance of dialogs and Command Palette. Standardize Manage Jenkins page size. Use Jenkins color palette for test results and CodeMirror. pull 10479, pull 10514, pull 10687, pull 10721
Refresh user API Token UI. pull 10484
Remove support for loading user data from releases older than Jenkins 1.283. JENKINS-75370
Remove support for loading proxy configuration from releases older than Jenkins 1.415. JENKINS-75370
Add "No plugins" notice to Appearance configuration page. pull 10478
Update to a dropdown menu display for the user Default View. pull 10482
Improve UI of Secret and Password entry. pull 10489
A new /health endpoint is available to determine whether Jenkins is healthy. JENKINS-75530
New jobs no longer create an empty legacyIds marker file in the builds directory. Existing legacyIds files are deleted upon upgrade to reduce inode usage. JENKINS-75465
Jenkins' own user database no longer accepts new passwords longer than supported by bcrypt (72 bytes). Users with longer passwords are advised to change their password. JENKINS-75533
Remove jbcrypt library. If you use the Active Directory plugin, you must update it to version 2.40 at the same time Jenkins is updated to 2.516.1. JENKINS-75533
Remove deprecated hudson.util.IOException2. pull 10628
Remove support for ?path and ?pattern query parameters for directory listings of user content, such as workspaces and archived artifacts. The filter text box now uses JavaScript instead of a form submission to navigate to the expected URL. Programmatic users are advised to replace ?path or ?pattern in their requests with the resulting redirect URL, whose behavior did not change from before. JENKINS-75388
Remove PAM Authentication plugin from suggested plugins. pull 10663
Add Powershell script to Windows installer to update registry information after WAR update. Packaging PR 494
Add a "copy to clipboard" button to the Jenkins error page. pull 10712
Complete the Japanese translation for the keepDependencies help file. pull 10366
When running in Jetty (when using the default java -jar jenkins.war), set the SameSite attribute for cookies to provide additional protection from some CSRF vulnerabilities. By default this sets the attribute to Lax. This can be changed by setting the Java system property jenkins.security.JettySameSiteCookieSetup.sameSiteDefault. Users of Microsoft Entra ID (previously Azure AD) Plugin are advised to update the plugin to version 580.v2f665882b_a_71 or newer at the same time. pull 10630, Jenkins features controlled by system properties
Allow the Views tab bar to be configured per user. pull 10379

Bug fix

Only update affected computers when adding/updating/removing nodes instead of reviewing every computer and checking their retention strategy, which can cause performance issues at scale. JENKINS-33704
Fix limitation of Summary widget on the build page. pull 10368
Fix search result URLs when using the old search implementation. JENKINS-75320
Add value attribute to button element in submit.jelly. JENKINS-75441
Ensure computer configuration is updated correctly after updating a node. JENKINS-33704
Ensure number of executors of the built-in node is synced with the number of executors defined in Jenkins after a configuration reload. pull 10529
Allow icons in tables to be updated even when there is more than one table displayed on the page. pull 10230
Fix "No builds" state remaining in Build History widget after first build. JENKINS-75574
Fix state of labels removed from nodes. JENKINS-68155
When completing a build, look for older builds to rotate asynchronously, in case this process is expensive. pull 10555
Fix the display of icons in the header by only applying the jenkinsavatar class to user icons, not the other header icons. JENKINS-75615
Reduce heap usage of various HTTP endpoints serving large build logs. JENKINS-75081
Restore the children context menu for breadcrumbs. JENKINS-75634
Remove overlapping text from the Thread Dump page. JENKINS-75621
Defer rendering a build's artifact list to a background request to avoid expensive computations. pull 10623
Catch ConnectionRefusalException when thrown by a websocket agent connection attempt. pull 10655
Do not close the dropdown menu when hovering over the submenu of the dropdown menu. JENKINS-75635
Fix URLs in search result list when running at `root` context. pull 10725
Restore side panel actions for views. JENKINS-75683
Replace Loading overlay with skeleton outline on Manage Jenkins pages. JENKINS-68934
Place secondary actions in the collapsing menu instead of displaying them based on screen width. JENKINS-75727
Any RootAction that used custom rendering (action.jelly) is once again visible in the header and behaves appropriately. Any RootAction that uses jelly to show/hide is correctly hidden in the header. Any RootAction with sub tasks now shows the subtasks as a dropdown when in the correct context. JENKINS-75683

Changelog for 2.516.1