Not quite a concise summary, but looking at the documentation, the biggest changes I noticed were : - Responsive design using media queries - CSS Progress bar

Not quite a concise summary, but looking at the documentation, the biggest changes I noticed were : - Responsive design using media queries - CSS Progress bars - A few new javascript plugins (Carousel, Typehead) - Icons The documentation is online here in case you missed the link the article : http://markdotto.com/bs2/docs/index.html http://markdotto.com/bs2/docs/index.html Maybe someone has a better summary