The JRuby community is pleased to announce the release of JRuby 1.6.0.

• Homepage: https://www.jruby.org/
• Download: https://www.jruby.org/download

JRuby 1.6.0 final is out!

JRuby 1.6.0 is the largest release of JRuby to date. This release fixes hundreds of user issues and brings compatibility with Ruby 1.9.2 to a very high level. We have made Windows a primary supported platform by adding it to our continuous integration environment. JRuby 1.6 will provide Windows-based Ruby users with the best experience yet. This release integrates experimental support for C extensions based on Ruby's C API. And as with all major releases, we have improved stability and performance across the board in response to real-world user input.

Over the next month or two we plan on putting out quicker point releases in anticipation that 1.6.0 will get a new wave of feedback. Give JRuby 1.6.0 a try and let us know how things go.

• Ruby 1.9.2 language and API compatibility

  • Not implemented Encoding::Converter, ripper

• Improved Ruby call performance

• Built-in profiler (--profile, --profile.graph)

• RSpec no longer bundled

• C Extension support (experimental)

• RubyGems Maven support (preview)

• Improved compatibility and user experience on Windows

• jruby-complete.jar now includes 1.9 standard library

• Embedding API refinements

• Over 2000 commits and 270 issues resolved.