JRuby Released

Monday, April 29 2024

The JRuby community is pleased to announce the release of JRuby

JRuby 9.4.x targets Ruby 3.1 compatibility.

Thank you to our contributors this release, you help keep JRuby moving forward! @kares, @ryannevell, @jsvd

Ruby Compatibility

Standard Library

  • jruby-openssl is updated to 0.14.5
  • rdoc is updated to
  • Warnings due to method aliasing in the ostruct library have been mitigated. #8200, #8206

JVM Integration

  • Ruby classes that are “reified” into a Java class and later redefined can be “re-reified” to a new Java class with an incrementing version number. #8141, #8185
  • Java objects from other classloaders can pollute the Java:: namespace. This behavior can be disabled now, and will be disabled by default in JRuby 10. #8156, #8208

53 Github Issues resolved for