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Bootstrap 4 Introduction – What’s New

Bootstrap is a well-known and essential platform for web developers and front-end developers. Currently, the latest version of Bootstrap is v3.3.6. The Bootstrap project has stepped into their fourth birthday on 19th August 2015 and on the same day they have announced the upcoming version of Bootstrap 4.

Currently, it’s in the alpha stage and the source code is available in a GIT branch for forks. They have not declared the final release date of Bootstrap 4 yet. However, there is a predeclared development plan of having a few “alpha” releases, then two “beta” and two “RCs” (release candidates), and then the final version will be released.

Importantly, they have also announced that, unlike withdrawing further support for v2.x after the release of v3.0, which was a mistake, they will continue the support for v3.x after the release of Bootstrap 4.

Update 12th May 2020:

The team has released the latest stable version Bootstrap 4 (v4.5.0) today.

There are major changes that have been made in Bootstrap 4 and it is a rewrite of almost the entire project. Very old browser support has been dropped, moved from LESS to SCSS, switched from the px unit system to the em based unit system, some components have been dropped, and some new components have been added. Let’s see what are the changes and new features in Bootstrap 4.