I'm trying to update my Bootstrap dependency in my Ember application to the alpha 4 version so I can access the utility classes (such as margin/padding).
I think Bootstrap is a bower dependency since it's listed in
bower install bootstrap#v4.0.0-alpha.3
You need to use
--save parameter to save bower.json:
bower install --save bootstrap#v4.0.0-alpha.3
Look at the bower_components directory, does it keep the old version of the bootstrap? If so remove it.
You should add
bootstrap.css to the
ember-cli-build.js, as you said. Have a look at this addon, check your coding against of a typo or erronous adding.
Does your client loads any version of bootstrap? (Check vendor.js)