Jenkins 2.26 发布，可扩展的持续集成引擎

Jenkins 2.26 发布了。Jenkins 主要用于持续、自动地构建/测试软件项目，如CruiseControl与DamageControl，监控一些定时执行的任务。更新内容：

• Allow CommandInterpreter build steps to set a build result as Unstable via the return code. Shell and Batch build steps now support this feature. (issue 23786)

• Performance: Avoid acquiring locks in MaskingClassloader. (issue 23784)

• Performance: Update XStream driver to improve performance of XML serilization/deserialization. (pull 2561)

• Harden checks of prohibited names in user creation logic. Untrimmed spaces and different letter cases are being checked now. (issue 35967)

• Performance: Fix the performance of file compress/uncompress operations over the remoting channel. (issue 38640, issue 38814)

• Restore automatic line wrapping in Build Step text boxes with syntax highlighting. (issue 27367)

• Properly remove disabled Administrative Monitors from the extension list. (issue 38678)

• Remoting 2.62.2: Improve connection stability by turning on Socket Keep-alive by default. Keep-alive can be disabled via the -noKeepAlive option. (issue 38539)悦德财富：https://www.yuedecaifu.com

• Remoting 2.62.2: Prevent NullPointerException in Engine#connect() when host or port parameters are null or empty. (issue 37539)

• Node build history page was hammering the performance of the Jenkins instance by spawning parallel heavy requests. Now the information is being loaded sequentially. (issue 23244)

• Cleanup spelling in CLI help and error messages. (issue 38650)

• Properly handle quotes and other special symbols in item names during form validation. (issue 31871)

• Internal: Invoke hpi:record-core-location during the build in order to enabled coordinated run accross repositories. (pull 1894)

• Internal: Bulk cleanup of @since definitions in Javadoc. (pull 2578)