Issues

• A runtime in a disposable class loader can't be garbage collected after tearDown

  jruby/jruby#9781 · Filter by author matrei opened on Oct 7, 2026
  4

• Implement native Win32 IO.pipe

  windows
  Feature

  jruby/jruby#9780 · Filter by author byteit101 opened on Oct 7, 2026
  1

  

• With invokedynamic, class_attribute writes can leak into the superclass after define_method on the subclass's singleton class

  jruby/jruby#9777 · Filter by author gillesbergerp opened on Oct 7, 2026 · JRuby 10.0.8.0
  1

• String#strip raises ArrayIndexOutOfBoundsException on four-byte GB18030 characters

  jruby/jruby#9776 · Filter by author n-rodriguez opened on Oct 6, 2026

• Set operations do not preserve compare_by_identity

  jruby/jruby#9772 · Filter by author evaniainbrooks opened on Oct 3, 2026

• Array#-, #&, #| call #hash on elements where MRI does not

  coreRails
  jruby/jruby#9758 · Filter by author headius opened on Oct 1, 2026 · JRuby 10.1.3.0

• Update 10.1 to latest 4.0 stdlib and tests

  jruby/jruby#9748 · Filter by author headius opened on Sep 30, 2026 · JRuby 10.1.3.0

• Update 10.0 to latest 3.4 stdlib and tests

  jruby/jruby#9747 · Filter by author headius opened on Sep 30, 2026 · JRuby 10.0.8.0

• Ruby 4.1 support

  jruby/jruby#9746 · Filter by author headius opened on Sep 30, 2026 · JRuby 10.2.0.0
  1

• Eliminate argument forwarding overhead for fast paths

  jruby/jruby#9740 · Filter by author headius opened on Sep 29, 2026 · JRuby 10.1.x

• Implement #[] optimization as in CRuby

  jruby/jruby#9732 · Filter by author headius opened on Sep 24, 2026

• jruby-jars gem build fails in snapshot builds

  jruby/jruby#9725 · Filter by author headius opened on Sep 21, 2026

• CI jobs fail on transient network errors during bootstrap and bundle install

  jruby/jruby#9715 · Filter by author aminmansuri opened on Sep 19, 2026
  1

• Address flaky concurrent-ruby tests

  jruby/jruby#9713 · Filter by author headius opened on Sep 18, 2026

• Set up additional chat services and include in docs

  jruby/jruby#9711 · Filter by author headius opened on Sep 18, 2026 · Non-Release
  1

• Fix Libera IRC bridge to Matrix

  jruby/jruby#9710 · Filter by author headius opened on Sep 18, 2026 · Non-Release
  2

• Missing TracePoint features needed by power_assert

  jruby/jruby#9704 · Filter by author headius opened on Sep 16, 2026 · JRuby 10.0.x

• Wrong union-by-value argument passing in JRuby

  jruby/jruby#9699 · Filter by author headius opened on Sep 16, 2026 · JRuby 10.1.3.0

• Native IO blocking read: jnr.posix.WindowsRawFileStat is not a struct

  windows
  Bug

  jruby/jruby#9684 · Filter by author byteit101 opened on Sep 14, 2026
  2

• Using set_temporary_name makes Class#name ignore nesting

  jruby/jruby#9680 · Filter by author rkh opened on Sep 14, 2026 · JRuby 10.1.x
  2

• Missing manual page

  jruby/jruby#9612 · Filter by author jcharaoui opened on Aug 28, 2026 · JRuby 10.1.3.0
  1

• Missing --help strings

  jruby/jruby#9611 · Filter by author jcharaoui opened on Aug 28, 2026 · JRuby 10.1.3.0
  1

• Impossible to eval with require_relative

  jruby/jruby#9606 · Filter by author Maumagnaguagno opened on Aug 26, 2026 · JRuby 10.1.3.0
  3

• Improve perf of RubyRange.begLenInt

  coreperformance
  jruby/jruby#9605 · Filter by author headius opened on Aug 25, 2026 · JRuby 10.1.x

• JRUBY_OPTS does not propagate into some rake tasks

  jruby/jruby#9597 · Filter by author headius opened on Aug 18, 2026