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).