Probably if you are updated with the news abroad the front-end community you know that Bootstrap 4.0-alpha6 was released. But what actually was changed for us developers?
There are a ton of major changes to Bootstrap and it’s impossible to cover them all in detail here, so here are some of our favorite highlights:
Moved from Less to Sass. Bootstrap now compiles faster than ever thanks to Libsass, and we join an increasingly large community of Sass developers.
Improved grid system. We’ve added a new grid tier to better target mobile devices and completely overhauled our semantic mixins.
Opt-in flexbox support is here. The future is now—switch a boolean variable and recompile your CSS to take advantage of a flexbox-based grid system and components.
Dropped wells, thumbnails, and panels for cards. Cards are a brand new component to Bootstrap, but they’ll feel super familiar as they do nearly everything wells, thumbnails, and panels did, only better.
Consolidated all our HTML resets into a new module, Reboot. Reboot steps in where Normalize.css stops, giving you more opinionated resets like box-sizing: border-box, margin tweaks, and more all in a single Sass file.
Brand new customization options. Instead of relegating style embellishments like gradients, transitions, shadows, and more to a separate stylesheet like v3, we’ve moved all those options into Sass variables. Want default transitions on everything or to disable rounded corners? Simply update a variable and recompile.
Dropped IE8 support and moved to rem and em units. Dropping support for IE8 means we can take advantage of the best parts of CSS without being held back with CSS hacks or fallbacks. Pixels have been swapped for rems and ems where appropriate to make responsive typography and component sizing even easier. If you need IE8 support, keep using Bootstrap 3.
Improved auto-placement of tooltips and popovers thanks to the help of a library called Tether.
Improved documentation. We rewrote it all in Markdown and added a few handy plugins to streamline examples and code snippets to make working with our docs way easier. Improved search is also on its way.
And tons more! Custom form controls, margin and padding classes, new utility classes, and more have also been included.
Bootstrap is back again with extreme version.
In a way, Bootstrap has shaped and driven standards over the years – especially mobile development. It enabled developers to either prototype quick and dirty sites or extend and build completely custom, rock-solid websites.
It’s a little crazy to think about, but just 4 years ago when Bootstrap 1.0 first came out, it wasn’t even responsive and had gradients for their gradients.
With the release of Bootstrap 2.0, they went fully responsive (but still technically optional), and they slowly started phasing out Internet Explorer 7 support.
They then released Bootstrap 3.0, finally killing off Internet Explorer support and slowly phasing out Internet Explorer 8. They also went “flat” and removed gradients, added a ton of new features, and upgraded their grid to be insanely more powerful:
Now, we’ve arrived at Bootstrap 4.0 which completely drops Internet Explorer 8 support. This means the front-end framework is no longer held back by legacy browsers and they can use better CSS3 techniques.
You can find the new Bootstrap 4 themes here click here.