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For most developers, using a version manager is the most efficient method: rvm install jruby-9.3.9.0 rbenv: rbenv install jruby-9.3.9.0 System Requirements & Compatibility The Power of JRuby. Ruby is a fantastic programming…
You can download JRuby 9.3.9.0 through official channels or automated version managers: 1. Official Direct Downloads
This version specifically addresses several vulnerabilities (CVEs) and stability issues:
Improved stability on Windows with fixes for jar:file:stat errors and File.symlink functionality. How to Download JRuby 9.3.9.0