Bootstrap 4 alpha released and includes huge changes

Bootstrap 4 is now inΒ alpha, and includes a ton of changes that will be popular.

These are my personal favorites:

  • Moved from Less to Sass.
  • Improved grid system.
  • Opt-in flexbox support is here.
  • Dropped IE8 support and moved to rem and em units.
  • Rewrote all our JavaScript plugins.

They are also launching official Bootstrap commercial themes, which I'm sure you'll start seeing absolutely everywhere. They are $99 a pop but quite nice. I imagineΒ the “WordPress versions” of these popping up quite soon, by someone.

The changes in Bootstrap 4 make me want to try it again. A few older features made it a non-starter for me but now — especially with Sass support and the switch from pixels — I'm interested again.