Changes

• #31728: Switch to dart-sass
• #31972: Drop Legacy Edge support.
• #32012: Remove obsolete prefixes

🚀 Features

• #30449: v5: Floating labels
• #30571: v5: Add .fs-* utilities for font-size and rename font-weight/-style utilities
• #31343: Adding overflow visible and scroll as utilities
• #31995: Replace .btn-block with utilities
• #32013: Add dedicated accordion component
• #32066: Add .d-grid to our display utilities
• #32074: Add .gap utilities

🎨 CSS

• #30449: v5: Floating labels
• #30571: v5: Add .fs-* utilities for font-size and rename font-weight/-style utilities
• #30622: Colors rewrite
• #31343: Adding overflow visible and scroll as utilities
• #31651: Fix disabled checkbox toggle buttons
• #31657: Handle the Ubuntu sans-serif case
• #31684: Add Sass variable for CSS variable prefix
• #31687: Updated .rounded utilities
• #31700: Suppress flexbox side effects in breadcrumb
• #31826: Alert: Add z-index for close button
• #31839: docs: fix contrast color against .bg-info
• #31877: Apply smooth-scroll when prefers-reduced-motion: no-preference
• #31882: Slow down spinners when prefers-reduced-motion: reduce
• #31953: Fix input group border radii
• #31955: Drop custom file upload plugin in favor of CSS solution
• #31964: Remove background-clip from .btn-close
• #31993: Remove explicit heights on form elements
• #31995: Replace .btn-block with utilities
• #32013: Add dedicated accordion component
• #32020: Add cursor:pointer to color inputs
• #32023: Fix color input heights
• #32031: Fix .fw utilities
• #32064: Remove firefox workaround for ::file-selector-button margin
• #32066: Add .d-grid to our display utilities
• #32074: Add .gap utilities
• #32085: Add checks to fix color contrast issues
• #32121: Use correct value order

☕️ JavaScript

• #30740: karma: stop excluding polyfill.js from istanbul
• #31818: Check for data-interval on the first slide of carousel
• #31842: Remove Manipulator.toggleClass
• #31951: Update anchor-js to v4.3.0.
• #32011: polyfill.js minor tweaks
• #32016: Streamline jQuery comment.
• #32021: Lint: stop ignoring package.js
• #32024: Fix TypeError when Bootstrap is included in head
• #32026: toast.spec.js: fix typo
• #32036: ESLint: enable new-cap rule but ignore properties
• #32043: tests: switch to using toContain() to check for substring presence
• #32045: tests: fix sanitizer test.
• #32046: tests: tweak Jasmine usage
• #32055: dropdown.js: simplify code
• #32093: karma.conf.js: break lines
• #32100: search.js: check for search-input element early
• #32101: modal.html: use textContent

📖 Docs

• #30044: Contrast colors added to theme-colors
• #30838: Explain the "dispose" method appropriately
• #31111: Update docs example on how to optimize JavaScript bundle
• #31583: docs(Modal): Add xxl fullscreen example
• #31679: Don't wrap the code snippets in our docs
• #31686: v5: Add disabled examples for .form-control, .form-select, and .form-range
• #31702: Add keyboard shortcut to focus search field
• #31775: Update social.html: use article og:type when it's a page
• #31791: docs: remove pixels from SVGs
• #31794: webpack.md: Replace "both of them" with "it"
• #31795: validation.md: fix _validation.scss file reference
• #31796: Update .btn-close-white docs to filter (not backdrop-filter)
• #31802: Improve callout shortcode.
• #31803: Update bs-table shortcode
• #31806: docs: switch to fenced codeblocks
• #31809: carousel: add missing to description and fix nextwhenvisible description
• #31828: docs: Add Russian translation
• #31835: Move href attribute first
• #31839: docs: fix contrast color against .bg-info
• #31861: Split up dropdown sizing docs to improve rendering
• #31871: Revert "Improve callout shortcode."
• #31892: Remove redundant visually hidden "(current)" from pagination controls
• #31893: Update manifest.json
• #31894: docs: switch to suggesting jsDelivr as a CDN
• #31904: Drop useless text faking a label in horizontal forms example
• #31929: Mention spinners slow down in migration guide
• #31932: Small typo - remove the unnecessary "the"
• #31951: Update anchor-js to v4.3.0.
• #31960: Docs: Explicitly mention emoji fonts, tweak sentence in typography
• #31965: Rename Navs to Navs and Tabs
• #31981: Update list-group.md
• #31982: Fix git conflicts after #30571
• #31984: Add example with input group between two inputs
• #32009: Minor Markdown fixes
• #32015: Fix redirects
• #32031: Fix .fw utilities
• #32040: Add callouts about using light colors ideally on a dark background
• #32049: Update utilities API docs
• #32050: Make docs anchorjs links darker on keyboard focus
• #32058: Form file docs and overrides
• #32076: Partially revert "Move this to a partial to work around the stray p…
• #32084: reboot.md: mention "Liberation Sans"
• #32086: config.yml: remove the unused "expo" parameter
• #32087: download.md: link to JS files comparison too
• #32090: [Docs] Changes to navbar documentation/explanation
• #32099: search.js: use the current v5.getbootstrap.com URL
• #32100: search.js: check for search-input element early
• #32102: docs.html: replace backslashes with forward slashes
• #32105: Clarify JS bundle docs one more time
• #32116: browsers-devices: add chomp
• #32126: Minor improvements to the Alpha 3 changelog
• #32129: masthead: add newlines in the snippets and reindent

🌎 Accessibility

• #30550: Bump $dark to $gray-900
• #31839: docs: fix contrast color against .bg-info
• #31877: Apply smooth-scroll when prefers-reduced-motion: no-preference
• #31882: Slow down spinners when prefers-reduced-motion: reduce
• #31892: Remove redundant visually hidden "(current)" from pagination controls
• #31904: Drop useless text faking a label in horizontal forms example
• #32058: Form file docs and overrides
• #32090: [Docs] Changes to navbar documentation/explanation

🧰 Misc

• #30740: karma: stop excluding polyfill.js from istanbul
• #31728: Switch to dart-sass
• #31783: Update .gitignore
• #31878: CI: Allow skipping BrowserStack
• #31930: Update CodeQL action
• #32003: CI: switch to Node.js 14.
• #32005: Remove bugreport.apple.com url
• #32006: CI: Skip dependabot PR branches.
• #32008: Update Edge's Rendering Engine on CONTRIBUTING.md
• #32027: Clarify PRs section
• #32033: CODE_OF_CONDUCT.md: fix redirect
• #32036: ESLint: enable new-cap rule but ignore properties
• #32056: deps: move sirv-cli to npx
• #32063: stylelint: pass the --rd flag
• #32097: package.json: fix clean-css level switch

📦 Dependencies

• Updated numerous devDependencies https://github.com/twbs/bootstrap/pulls?q=is%3Apr+is%3Aclosed+label%3Adependencies+project%3Atwbs%2Fbootstrap%2F22