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 on the website: http://www.graalvm.org/ruby/
TruffleRuby comes in two standalone modes, native and jvm, for both Oracle GraalVM and Community Edition.
See the documentation for which release asset corresponds to what.

Changelog

New features:

Bug fixes:

• Fix Module#name called inside the Module#const_added callback when the module is defined in the top-level scope (#3683, @andrykonchin).
• Fix duplicated calls of a Module#const_added callback when a module with nested modules is assigned to a constant (@andrykonchin).
• Support OpenSSL 1.1-3.4 and prefer in order OpenSSL 3.0.x, 3.x and 1.1 (EOL). There was a compilation issue with OpenSSL 3.4 (#3724, @eregon).
• Fix Time{.at,.new,.now,#getlocal,#localtime} methods and validation of seconds in utc offset in String format (@andrykonchin).
• Fix ObjectSpace.undefine_finalizer and raise FrozenError when called for a frozen object (@andrykonchin).
• Fix Integer#/ when called with a bignum argument (@andrykonchin).

Compatibility:

• Fix Module#include so a module included into a reopened nested module is added into an ancestors chain (#3570, @andrykonchin).
• Fix Kernel#eval to ignore shebang with non-Ruby interpreter (#3623, @andrykonchin).
• Fix Env#delete and return value returned by a block if variable doesn't exist (@andrykonchin).
• Fix Env#update and accept multiple hashes (@andrykonchin).
• Add MAJOR, MINOR, TEENY, PATCHLEVEL, RUBY_API_VERSION, and RUBY_PROGRAM_VERSION to RbConfig::CONFIG (#3396, @rwstauner).
• Set RbConfig::CONFIG['archincludedir'] (#3396, @andrykonchin).
• Support the index/length arguments for the string argument to String#bytesplice added in 3.3 (#3656, @rwstauner).
• Implement rb_str_strlen() (#3697, @Th3-M4jor).
• Support Time.new with String argument and error when invalid (#3693, @rwstauner).
• Implement rb_enc_interned_str() (#3703, @Th3-M4jor).
• Implement rb_hash_bulk_insert() (#3705, @Th3-M4jor).
• Remove deprecated Pathname#{taint,untaint} methods (#3681, @andrykonchin).
• Add rb_category_warn function (#3710, @andrykonchin).
• Add rb_gc_mark_locations() (#3704, @andrykonchin).
• Implement rb_str_format() (#3716, @andrykonchin).
• Add IO#{pread, pwrite} methods (#3718, @andrykonchin).
• Add rb_io_closed_p() (#3681, @andrykonchin).
• Add rb_io_open_descriptor() (#3681, @andrykonchin).
• Support serializing of Data instances into Marshal format (#3726, @andrykonchin).
• Array#pack now raises ArgumentError for unknown directives (#3681, @Th3-M4jor).
• String#unpack now raises ArgumentError for unknown directives (#3681, @Th3-M4jor).
• Thread::Queue#freeze now raises TypeError when called (#3681, @Th3-M4jor).
• Thread::SizedQueue#freeze now raises TypeError when called (#3681, @Th3-M4jor).
• Add Range#reverse_each (#3681, @andrykonchin).
• Emit a warning when it call without arguments is used in a block without parameters (#3681, @andrykonchin).
• Add rb_syserr_fail_str() (#3732, @andrykonchin).
• Add Dir.for_fd (#3681, @andrykonchin).
• Add Dir.fchdir (#3681, @andrykonchin).
• Add Dir#chdir (#3681, @andrykonchin).
• Declare File::SHARE_DELETE constant (#3745, @andrykonchin).
• Support symbolize_names argument to MatchData#named_captures (#3681, @rwstauner).
• Support Proc#initialize_{dup,copy} for subclasses (#3681, @rwstauner).
• Remove deprecated Encoding#replicate method (#3681, @rwstauner).
• Add ObjectSpace::WeakMap#delete (#3681, @andrykonchin).
• Kernel#lambda with now raises ArgumentError when given a non-lambda, non-literal block (#3681, @Th3-M4jor).
• Add rb_data_define() to define Data (#3681, @andrykonchin).
• Add Refinement#target (#3681, @andrykonchin).
• Add Range#overlap? (#3681, @andrykonchin).
• Update NoMethodError#message to not use #inspect on receiver (#3681, @rwstauner).
• Socket #recv* methods ({BasicSocket,IPSocket,TCPSocket,UDPSocket,Socket}#{recv,recv_nonblock,recvmsg,recvmsg_nonblock,recvfrom,recvfrom_nonblock}) return nil instead of an empty String on closed connections (#3681, @andrykonchyn).
• Fix Marshal.dump when a Float value is dumped repeatedly (#3747, @andrykochin).
• Emit warning when Kernel#format called with excessive arguments (@andrykonchin).
• Fix Integer#ceil when self is 0 (@andrykonchin).
• Fix Module#remove_const and emit warning when constant is deprecated (@andrykonchin).
• Add Module#set_temporary_name (#3681, @andrykonchin).
• Modify Float#round to match MRI behavior (#3676, @andrykonchin).
• Support Timezone argument to Time.{new,at} and Time#{getlocal,localtime} (#1717, @patricklinpl, @manefz, @rwstauner).

Performance:

• Speedup some C extensions like sqlite3, trilogy and json by 2 to 3 times by using the Panama NFI backend for faster upcalls in JVM mode (@eregon).
• Optimize encoding negotiation for ASCII-compatible encodings (@eregon, @andrykonchin).

Changes:

• Inherit Polyglot::ForeignException from StandardError instead of Exception (#3620, @andrykonchin).