Please refer to Running Jenkins on Java 11 documentation to have the up-to-date details on how to run Jenkins on Java 11. Guidelines in this blogpost are rendered obsolete by the Java 11 Support Preview Availability announcement on Dec 13, 2018 and by the Java 11 GA release on Sep 25, 2018. See the Java support page for up-to-date information about running Jenkins with Java 11. The Jenkins project...

On behalf of the Jenkins Events Team, I would like to invite you to the “Jenkins & Java 10 Online Hackathon” which will take place from June 18th to 22nd. We will be working together on Jenkins core and plugins in order to find and fix compatibility issues, share experiences and have some fun. Everybody is welcome to join, independently of their Jenkins experience and amount of time...

A couple of weeks ago, Tyler mentioned some developer improvements in Essentials that had been recently introduced: the ability for ci.jenkins.io builds to get deployed automatically to an “Incrementals” Maven repository, as described in JEP-305. For a plugin maintainer, you just need to turn on this support and you are ready to both deploy individual Git commits from your repository without the need to run heavyweight traditional Maven releases, and to depend directly on similar commits...

This sort of slid under the radar in the middle of some bigger changes for the JEP-202 reference implementation, so I wanted to call it out now. Arguably this could deserve a retroactive JEP, though I would rather fold it into a JEP for JENKINS-49651 (see below). As of Jenkins 2.118, or plugin parent POM 3.7, you can mark any Java member (class, method, constructor, field, or I suppose also...