Bootstrap4 is based on templates and snippets by Startbootstrap, mainly this one: https://startbootstrap.com/templates/modern-business/
In active development
Download and Installation
01.07.2019 update to 2.2.2 git version. No workarounds anymore, everything is supported in core. Only change against core bootstrap4 theme is not using bootswatch style, only bootstrap 4 default css
Copyright and License
e107 stuff is released under GPL licence. Startbootstrap stuff is released under MIT licence.
Many thanks to startboostrap for awesome HTML template. Many thanks to e107 for great bootstrap CMS.