Changelog

Major enhancement

Support for the Remoting mode of the CLI (-remoting option) has been removed. pull 3838, announcement blog post
Remove misleading nonStoredPasswordParam symbol for password parameter definitions, since it's actually stored encrypted. JENKINS-56776
Remove built-in support for CCtray (cc.xml) files. To restore this feature, install the CCtray XML Plugin. JENKINS-40750

Enhancement

Add stop-job CLI command which allows aborting builds. JENKINS-11888
Add support for turning off a log recorder in the logger configuration. JENKINS-56200
Add the run parameter filter value to REST API responses. JENKINS-56554
Update status icon of a build when the build is finished. JENKINS-16750
Remove misleading references to Java Web Start and JNLP from GUI surrounding inbound Jenkins agents. pull 3998
Inform administrators about potentially unsafe permissions setup involving builds running as the virtual SYSTEM user. JENKINS-24513
Add a log message to build logs when builds run with the virtual SYSTEM authentication. pull 3908
Migrate all Chinese localization resources into Localization: Chinese (Simplified) plugin. pull 4008
Adjust stream flushing behavior for code running remotely on agents for better performance. This may lead to loss of messages for plugins which print to a build log from the agent machine but do not flush their output. Use -Dhudson.util.StreamTaskListener.AUTO_FLUSH=true to restore the previous behavior for freestyle builds. Note that Pipeline builds always expect remote flush. pull 3961
Update Winstone from 5.1 to 5.2 to make HTTPS cipher exclusions configurable. JENKINS-56659 , JENKINS-56591 , full changelog
Developer: Update Stapler from 1.256 to 1.257 to add support for loading localized webapp resources from any plugin. Add jenkins.PluginLocaleDrivenResourceProvider interface for plugins to participate in localized resource lookup. JEP-216, full changelog
Developer: Update Localizer library from 1.24 to 1.26 allowing plugins to override the lookup for localized resource files. pull 3896, JEP-216, full changelog
Developer: Add Jelly UI component f:secretTextarea for multi-line secrets analogous to f:password for single-line. pull 3967, Storing Secrets in Jenkins
Developer: SystemProperties may now be used from agent-side code. See SystemProperties#allowOnAgent. pull 3961

Bug fix

Remove Mailer related localized strings from core. Make sure you use Mailer Plugin 1.23. JENKINS-55292
Do not offer a workspace lease to a new build if it is already in use by a (Pipeline) build running across an agent reconnection. JENKINS-50504

Changelog for 2.176.1