http://blog.getbootstrap.com/2018/04/09/bootstrap-4-1/

Highlights

Here’s what’s new in addition to our bug fixes and docs updates:

• Added new custom range form control.

• Added new .carousel-fade modifier to switch carousel from horizontal sliding to crossfade.

• Added new .dropdown-item-text for plaintext dropdown items.

• Added new .flex-fill, .flex-grow-*, and .flex-shrink-* utilities.

• Added new .table-borderless variant for tables.

• Added new .text-monospace utility.

• Added new .text-body (default body color), .text-black-50 (50% opacity black), and .text-white-50 (50% opacity white) utilities.

• Added new .shadow-* utilities for quickly adding box-shadows.

• Added ability to disable Popper’s positioning in dropdowns.

• Updated our Theming docs to confirm you cannot use CSS variables in media queries (sorry folks!).

• Fixed longstanding issue with Chrome rendering CSS columns incorrectly for cards.

• Deprecated .text-hide—you’ll see a warning during compilation—as it’s a dated and undocumented feature.

• Fixed up Dashboard and Offcanvas examples across Firefox and IE.

• Breadcrumbs can now use non-string values as dividers.