I have previously used bootstrap 3 css only with angular 2 for an application which did not require jquery dependent bootstrap components like modal, carousel etc. 

I am now considering using bootstrap 4 with Angular 2 and have looked through bootstrap 4 [documentation](http://v4-alpha.getbootstrap.com/getting-started/introduction/), but still confused on what components depend on jquery and/or tether.js and what components work if I include css alone. Any help will be appreciated!