🚀 Highlights

• #35566: Properly escape IDs in getSelector() to handle weird IDs (#35565)
• #35857: Add dark mode support
• #36854: Use explicit imports in our JavaScript source files

🚀 Features

• #36540: Add new border-radius utilities
• #36781: add font-weight-medium (500) / fw-medium
• #37317: Add z-index utilities, .z-*

🎨 CSS

• #36095: Added CSS variables for breakpoints
• #36456: Add color CSS variables for .alert-link
• #36457: Add color CSS variables for .btn-close
• #36511: Add parameters to caret-related mixins
• #36540: Add new border-radius utilities
• #36781: add font-weight-medium (500) / fw-medium
• #36815: Add new CSS variables for Offcanvas
• #36831: Rework progress bar markup and styles
• #36848: Add utilities for overflow and object fit
• #36979: Add support for customizing a card title color
• #37125: Floating labels: Add an artificial background to label
• #37252: Add $enable-important-utilities condition in colored links
• #37257: Remove duplicate CSS variable
• #37299: Fix disabled floating labels and add some examples of it in the docs
• #37317: Add z-index utilities, .z-*
• #37344: Use --bs-border-width for some components
• #37350: Prevent extraneous whitespace around date time inputs in WebKit
• #37356: fix negative border-width on inputgroup and buttongroup
• #37408: Fix disabled floating labels color
• #37413: Grid Gap Updates
• #37526: Fix var --bs-body-font-family; keep quotes in the font stack
• #37617: CSS: $prefix to the whole assets
• #37621: Fix --bs-form-check-bg definition
• #37644: list-group-border-width variables
• #37687: Fix Sass compilation when $color-mode-type is set to media-query

☕️ JavaScript

• #35566: Properly escape IDs in getSelector() to handle weird IDs
• #36027: Move getElementFromSelector & getSelectorFromElement
• #36652: Boost execute function, being able to handle arguments
• #36854: Use explicit imports in our JavaScript source files
• #37438: refactor getSelector not to be exported
• #37473: fix: change replaceAll usage introduced in #35566
• #37482: Use Object.entries in more places
• #37483: hydrateObj: use default param
• #37484: ESLint: enable prefer-template rule

📖 Docs

• #36523: Update navbars example to include a centered nav with utilities
• #36831: Rework progress bar markup and styles
• #37247: Docs: Minor grammatical fixes for Form validation page
• #37250: Fix typo in documentation for hiding elements
• #37255: Markdownlint fixes
• #37267: Rename examples CSS/JS files for consistency
• #37271: Docs: Slightly improve tooling setup description
• #37277: Doc: add Sass vars for switches
• #37279: Improve example of .flex-wrap and -reverse
• #37282: Docs: standardize usage of <kbd>
• #37299: Fix disabled floating labels and add some examples of it in the docs
• #37301: docs: fix text buttons to match behavior
• #37318: Home imports
• #37320: Organize callouts in partials
• #37341: Docs: use 'added' page information to display a tag on top of the pages
• #37354: Docs: rewrite/reorganize carousel docs page
• #37361: Font style utilities did not contain "-style-" in BS4
• #37397: Change title of color-background.md page
• #37399: Only show added in page badge if relevant
• #37406: Update input-group.md with form text example
• #37432: Docs: use <button> for dropdown/popover examples, explain preference over <a> for dropdowns, tweak collapse prose
• #37491: Make added-in badge page-level for z-index utilities
• #37492: Docs: add margin between buttons in tooltip examples
• #37493: Docs: fix margins between cards in examples
• #37498: Fix accessibility of examples buttons
• #37535: Docs: Fix Thirteenth typo on Navbars example
• #37538: Docs: Add black text/background examples
• #37553: Docs: fix "Usage -> Enable dark mode" code example
• #37568: Remove title from check2 SVG icon
• #37570: code-examples.js: switch to firstElementChild
• #37615: Add new team member to the Teams page
• #37617: CSS: $prefix to the whole assets
• #37658: docs: move color-mode script
• #37670: Docs: Fix typo in guide
• #37676: Docs: fix typo for Sass vars references in Customize > Color modes > Building with Sass

🛠 Examples

• #36523: Update navbars example to include a centered nav with utilities
• #37123: Fix button hover color in the cover example
• #37267: Rename examples CSS/JS files for consistency
• #37502: Fix grid and alignment in examples/features

🌎 Accessibility

• #36831: Rework progress bar markup and styles
• #37354: Docs: rewrite/reorganize carousel docs page
• #37432: Docs: use <button> for dropdown/popover examples, explain preference over <a> for dropdowns, tweak collapse prose
• #37498: Fix accessibility of examples buttons

🏭 Tests

• #37248: Rename some variables in tab unit tests for consistency

🧰 Misc

• #36325: CI: Add GitHub token permissions for workflows
• #37348: Update authors and copyright to match npm, add repository reference
• #37459: CI: remove git credentials after checkout
• #37461: CI: switch to Node.js 18 LTS
• #37481: Update CodeQL workflow
• #37485: Update site/.eslintrc.json
• #37486: CodeQL: ignore dist folder

📦 Dependencies

• Updated numerous devDependencies: https://github.com/twbs/bootstrap/pulls?q=is%3Apr+label%3Adependencies+project%3Atwbs%2F9+is%3Aclosed