JRuby Released

Monday, September 11 2023

The JRuby community is pleased to announce the release of JRuby

JRuby 9.3.x is compatible with Ruby 2.6.x and stays in sync with C Ruby. As always there is a mix of miscellaneous fixes so be sure to read the issue list below.

Thank you to our contributors this release, you help keep JRuby moving forward! @ahorek, @chadlwilson, @justinstoller, @k77ch7, @kares, @snoglobe

Ruby Compatibility

Standard Library

  • strscan is still built-in (not a gem) but has been updated to the 3.0.6 version. #7634, #7884, #7889
    • Along with this change, our Regexp engine joni is updated to 2.2.1 for Range optimizations.
  • Default gem updates:
    • jruby-openssl0.14.2 #7877

JVM Integration

  • Virtual thread use in Fiber can now be disabled using the jruby.fiber.vthread=false property (or JRuby flag -Xfiber.vthread=false). #7907

Build and Distribution

  • The JRuby/Maven stack of plugins used to integrate Ruby and Maven artifacts have been updated to the latest versions, now using JRuby for builds and avoiding the use of deprecated rubygems.org APIs. #7880

33 Github Issues resolved for