Bootstrap v4.6.1

Bootstrap v4.6.1 has finally arrived! Biggest change here is a re-implementation of our Sass division functions and updates from v5, as well as some accessibility improvements and general bug fixes. Read on for the highlights or head to the v4.6.x docs to see the latest in action. What’s changed Replace Sass division with multiplication and custom divide() function fix(forms): input-group and validation icons Fix minor visual bug in FF caused by moz-focusring Adjust SAFE_URL_PATTERN regex for use with test method of regexes Add sms in the SAFE_URL_PATTERN for sanitizer Adjust feedback icon position and padding for select.form-control Carousel: use buttons, not links, for prev/next controls v4: Sass docs for default variables Handle complex expressions in add() & subtract() More concise improvements for add() and subtract() Remove aria-haspopup from dropdowns Dropdown: support .dropdown-item wrapped in <li> tags Update Node versions in JS tests (drop Node 10, add Node 16) and add variables for vertical-align in spinners Replace Freenode with Libera IRC server Fix repetition in the Navbar docs description Enable 0.x with negative margins in utilities Remove print thead rule Fix prevented show event disabling modals with fade class from being displayed again Input group validation with custom-file input Add eslint-plugin-qunit and tighten JS tests Update our tests to Node 16 and npm 8 Disabled link cleanup Review the GitHub v4.6.1 release changelog for more details.