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.

Changelog

Bug fixes:

• Fix Integer#ceil and Float#ceil with negative precision (#3911, @trinistr).

Compatibility:

• Fix mkmf.rb to use host's RbConfig for $ruby when --target-rbconfig is used (#4097, @panozzaj).
• Implement Fiber.[], Fiber.[]=, and Fiber#{storage,storage=} (#4007, @nirvdrum).
• Fix Symbol#inspect to handle incompatible encodings (#4106, @eregon).
• The dummy Encoding::UTF_16 and Encoding::UTF_32 encodings are now regular single-byte dummy encodings (#4083, @eregon).