Ruby 1.8.4 preview 2 has been released. You can get it:
md5sum is e5a48054fb34f09da17e8e8f04b8c706.
Size is 4312084 byte.
Ruby 1.8.4 will be released Dec. 24 (JST). Please, please you
test your applications and libraries in Ruby 1.8.4p2, and
if you found problems, please give feedback to ruby-core ML
or ruby-talk ML (not to me; I’m not Matz :-)).