Ruby 1.8.2 contains a year’s worth of bug fixes, so its release was a very welcome Christmas present from the honorable Matz. Among the many fixes and changes are the fact that Dave Thomas’
ri documentation system is now included by default. Oh so very welcome. The new release is to find in source form at ftp://ftp.ruby-lang.org/pub/ruby/ruby-1.8.2.tar.gz.
Please note, that Rails currently have one known bug when running under 1.8.2 in form of #354 — soon to be fixed.