Major overhaul for the most popular front-end component library https://getbootstrap.com
To this day, Bootstrap remains the most popular front-end component library out there, and lets you build great-looking, responsive user interfaces in no time. Bootstrap itself might not be new, but the stable version 4 dropped in January and brings a host of new features and changes.
Bootstrap 4 includes a move to favour Sass instead of LESS, utilise relative units instead of pixels, a new flexbox layout for grids, and much more. It’s also worth noting that it has now dropped support for IE8 and IE9, which for most shouldn’t be a problem.
You might be using Bootstrap with a framework such as Angular or React, and the good news is that while the stable release of version 4 is fairly new, there are already modules available to integrate it into those ecosystems.