TruffleRuby is a high-performance implementation of the Ruby programming language. TruffleRuby aims to be fully compatible with the standard implementation of Ruby, MRI. More information is available in the README. TruffleRuby comes in two standalone modes, native and jvm, each built with both Oracle GraalVM and Community Edition. See the documentation for which release asset corresponds to what.

Blog Post

https://truffleruby.dev/blog/truffleruby-33-is-released

Changelog

New features:

• Hash is now thread-safe on TruffleRuby, based on Benoit Daloze's PhD research (#3869, #3112, #2763, @eregon).
• The TruffleRuby version changed from being based on the GraalVM version to being based on the CRuby version. TruffleRuby version AB.C.D aims to be compatible with CRuby A.B. See the README for more details (#4020, @eregon).
• TruffleRuby now ships with its own libyaml and no longer needs a system libyaml (#3479, @eregon).
• TruffleRuby now ships with its own libssl and no longer needs a system libssl. It still requires CA certificates from the system. (#3479, @eregon).

Bug fixes:

• Fix Integer#% when called with a bignum argument (#3931, @andrykonchin).

Compatibility:

• Fix extra warnings for Kernel#sprintf (#3938, @eregon).
• Support using tailwindcss-ruby's native platform gems (@nirvdrum).
• Fix a TypeError when calling Kernel#warn with explicit uplevel: nil (@earlopain).
• Fix inspect output of symbols that contain non-ASCII letters (@earlopain).
• Implement rb_struct_initialize() for both Struct and Data (#3997, @eregon).
• Fix Hash#{select,slice,transform_values} and Hash.[] methods and retain compare_by_identity flag (@andrykonchin).
• Fix Hash#reject and do not retain default and default_proc values (@andrykonchin).
• Fix Comparable#clamp when the given an infinite interval (#3945, @andrykonchin).
• File.path now checks for \0 and encoding (#4047, @nobu).
• Implement MatchData#bytebegin and MatchData#byteend for Ruby 3.4 (#3883, @Schwad).
• Define Data#initialize to help deserializing Data instances (@eregon).
• Fix Rational() and arguments type conversion (#3969, #3954 @andrykonchin).
• Support Rational() with exception keyword argument (#3969, @andrykonchin).
• Ignore bom| prefix if file is not opened for reading (#4079, @rwstauner).

Incompatible Changes:

• Maven coordinates to embed TruffleRuby have changed from org.graalvm.polyglot:ruby/org.graalvm.ruby:ruby to dev.truffleruby:truffleruby (#4034, @eregon).
• The --single-threaded option now defaults to false also when embedding TruffleRuby (#3958, @eregon).

Other contributions without Changelog entries

• Add Dockerfiles and GitHub Actions to generate and publish docker images (#2405, @flavorjones).
• Fix invalid inlining usage of BooleanCastNode (#4043, @chumer).