In both `1.9.3` and `2.0` documentation, the Regexp#== documentation contains invalid examples http://www.ruby-doc.org/core-1.9.3/Regexp.html#method-i-3D-3D http://www.ruby-doc.org/core-2.0/Regexp.html#method-i-3D-3D ``` /abc/ == /abc/ #=> false /abc/ == /abc/ #=> false /abc/ == /abc/ #=> false /abc/ == /abc/ #=> false ``` The examples appear to be correct on github however https://github.com/documenting-ruby/ruby/blob/trunk/re.c#L2609