Ruby MRI - WikipediaYukihiro Matsumoto, the creator of Ruby. 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,[3] the MRI implementation was considered the de facto reference, especially since an independent attempt to create the specification (RubySpe
