Bootstrap framework has just released its first beta release of its new version: Bootstrap 4.

laravel bootstrap 4

Download

You can now download and integrate it into your Laravel projects.

http://getbootstrap.com/

Themes

Bootstrap 4 also comes with official themes. You can download them here:

bootstrap 4 theme

https://themes.getbootstrap.com/

Source Code

Source code (SASS) can be found at:

https://github.com/twbs/bootstrap

All books will be updated to support Bootstrap 4 in the future.