Yukihiro Matsumoto wrote:
> Merry Christmas,
> 
> We finally announce the release of final stable 1.8.1 at
> 
>   ftp://ftp.ruby-lang.org/pub/ruby/ruby-1.8.1.tar.gz
> 
> This is mainly a bug fix release.  You can wait for mirrors, if you
> are not in hurry.  Mirroring volunteers are welcome. 


I've mirrored it at ruby-doc.org

http://www.ruby-doc.org/downloads/ruby-1.8.1.tar.gz


James