Hi,

Ruby 1.6.4 was released finally.  Fetch it from

  ftp://ftp.ruby-lang.org/pub/ruby/ruby-1.6.4.tar.gz

Its md5sum is

  428690b893527bdad6a4867489bdadbd  ruby-1.6.4.tar.gz

Changes since 1.6.3 is described in

  ftp://ftp.ruby-lang.org/pub/ruby/Changes.1.6.4

Happy Rubying!

							matz.