The new 1.8.6 release does not appear to work with Rails (2.0.2 in our case). See several reports of errors or segfaults here: http://weblog.rubyonrails.com/2008/6/21/multiple-ruby-security-vulnerabilities So a large portion of the Ruby world will remain unpatched until ruby-core turns another release... :-( -- Posted via http://www.ruby-forum.com/.