Changelog for 2.50

Legend:

security fix
major bug fix
bug fix
major enhancement
enhancement

Community feedback:

no major issues
notable issues
required rollback

What's new in 2.50 (2017-03-11)

Allow searching by build parameter values in the Build History widget. (issue 40718)
Searching in the Build History widget takes into account user preferences (case sensitivity by default). (pull 2683)
When creating temporary files, use the jenkins prefix instead of the old hudson one. (pull 2778)
Fix relative links in the SCM polling administrative monitor. (pull 2780)
Update Remoting from 3.5 to 3.7 in order to prevent file descriptor leaks on agents in the case of multiple connection attempts. (full changelog)
Upgrade the Windows Agent Installer module from 1.6 to 1.7. This change picks major updates in Windows service management logic. This fix caused a critical regression in the WMI Windows Agents Plugin (JENKINS-42724). Update to WMI Windows Agents 1.3.1 in order to get the fix applied. (full changelog, guide to upgrading old Windows service agents)
Windows services: Upgrade the bundled Windows Service Wrapper from 1.18 to 2.0.2. (full changelog)
Windows services: Enable Runaway Process Killer by default in new agent and controller installations. (issue 39231)
Windows services: Enable auto-upgrade of Remoting on newly installed agents if they are connected by HTTPS. (issue 39237)
Windows services: Add support of shared directories mapping in Windows agent services. (Shared Directory Mapper documentation)
Windows services: Change the default Agent service display name prefix to Jenkins agent %ID%. (issue 42468)
Windows services: Prevent agent connection reset issues when WinSW gets terminated due to the system shutdown. (issue 22692)
Windows services: Integrate various stability and performance fixes in Windows Service Wrapper from 1.18 to 2.0.2. There are many fixes around configuration options and process termination. (full changelog)
Prevent file descriptor leaks when Windows Service installer fails to read data from the service startup log. (issue 42670)
Select controls in Jenkins Web UI now show the spinner icon while waiting for the list of possible options during AJAX. requests. (issue 42443)
Improve plugin access performance in the default PluginManager implementation. (issue 42585)
Internal API: Allow providing a custom task name in Run/Schedule UI via the AlternativeUiTextProvider extension. (issue 34522)
Search results page did not correctly encode query parameters. (issue 42390)