Ruby MRI

Ruby
DeveloperYukihiro Matsumoto (among others)
Initial releaseAugust 4, 2003 (2003-08-04)
Final release
1.8.7 / {May 31, 2008 (2008-05-31)
Written inC
Operating systemCross-platform
SuccessorYARV
TypeRuby programming language interpreter
LicenseRuby License
Simplified BSD License
GNU General Public License (prior to 1.9.3)
Websitewww.ruby-lang.org
Repository

Matz's Ruby Interpreter or Ruby MRI (also called CRuby) is an implementation of the Ruby programming language named after Ruby creator Yukihiro Matsumoto ("Matz"). Until the specification of the Ruby language in 2012, the MRI implementation was considered the de facto reference. Starting with Ruby 1.9, and continuing with Ruby 2.x and above, the official Ruby interpreter has been YARV ("Yet Another Ruby VM").

Ruby 1.8 is the last version that uses MRI.