What's New In Rails?

Hi All,
        I want to know what is the new in Ruby On Rails i.e. what is the
latest version of the Rails? what's new in it ? updates for the New Gems
and Plugins.
anything related to ruby actually i want to update myself on technology.

Thanks & Regards
Salil Gaikwad

If you're not up-to-date with technology trends, it's better to keep
your mouth shut and let people think you're a genius than to open your
mouth and remove all doubt.