'background-color' not respected

Bug Reports
1

Current project I’m working on - I had added some custom button styling.
I had added ‘background-color: black’ to the .btn class. This was applying a black background to my buttons. Since the update, all the button background have changed colour back to bootstrap primary colour.

background: black; this works

background-color: black; this no longer works.

2

Just guessing here, but it may be because of the new bg color utility classes that were added? Take a look at the documention at Bootstraps website to see what changed and you’ll see what I mean there.