Ruby on Rail (RoR), the popular web application framework, had an upgrade to version 2.2 last Friday. This version features better internationalization (i18n) framework and stronger HTTP validators.

RoR now supports i18n by default - the feature developers have desired for long to create multi-language websites easier. The framework adds better supports for etag and last-modifed validators freeing expensive server-side processing if the client the client already has the latest contents.

Also featured are thread safety and a connection pool for the Active Record capability in Rails, according to RoR’s blog:

Josh Peek has added thread safety to Rails and Nick Sieger from JRuby worked on getting Active Record a proper connection pool. So now all elements of Rails are thread safe, which is a big boon for the JRuby guys in particular. For C Ruby, we still need a bunch of dependent libraries to go non-blocking before it’ll make much of a difference, but work on that is forth coming.

RoR 2.2 is compatible with the previous version 1.9 and JRuby as well. Besides, development community has released improved API docs and created a whole new guides section for it.

RoR was created by David Hansson and has attracted a huge buzz for its revolutionary approach to web application development.