JRuby Released

Thursday, November 08 2018

The JRuby community is pleased to announce the release of JRuby

JRuby 9.2.x is our new major version of JRuby. It is expected to be compatible with Ruby 2.5.x and stay in sync with C Ruby. JRuby is our first release for 2.5 support.

If you do find issues then report them on using our issue tracker at https://github.com/jruby/jruby/issues. We also encourage users to join our IRC channel (#jruby on Freenode) and mailing lists. You may also follow @jruby on Twitter for updates.


  • 4 issues fixed for

Github Issues resolved for

  • #5426 - Java::JavaLang::ArrayIndexOutOfBoundsException (invalid bucket size: 0) for Set init with empty array & block
  • #5423 - Process.kill(:KILL, $$) doesn't work on Windows
  • #5421 - bundler on Windows - permission denied
  • #5420 - jruby-dist- files is missing gem lib/exe folders