So Bootstrap 3.0 has been released, so now what? If you haven’t been keeping up with the project and the release candidates, I would highly suggest taking a look at the documentation on migrating from 2.x to 3.0. It does a great job of walking through the differences in the classes along with highlighting what is new, updated, or removed.
While you are in the area, I would also suggest looking at the browser support. There are a number of things you need to know for IE browsers including dropping support for IE7 and requiring respond.js for media queries in IE8 and IE9.
I’m really excited to learn more about how the grid works and the new customizer. I’m also a huge fan of the new justify classes like I’m using on my child themes page.
What are you most excited about?