Designmodo has a quick overview of what to expect in Bootstrap 4. My initial thoughts:
- Moving from Less to Sass. Crap, now I gotta learn Sass and set up my development environment to support it.
- Grid System based on ems instead of pixels. Nice.
- Dropped support for IE8. OK, whatever…
- Dropped Glyphicons. Uh… please announce a replacement.
- Optional Flexbox. Yesssssss…
- Cards as a new component. Nice.
My biggest gripe is easily having to switch to Sass. Ah well, I’ll live.