Bootstrap: v5.0.0-beta3 Release

Highlights

• Added new offcanvas component for left, right, and bottom-aligned hidden content
• Added four new snippet-based examples: headers, heroes, features, and sidebars
• Updated the starter template example and a few other examples
• Added new Sass docs section to nearly every page to show variables, mixins, loops, and keyframes from our source code
• Added new .list-group-numbered variation to list groups that uses pseudo-elements for numbering list group items.
• Removed explicit focus state suppression in Reboot
• Improved carousel swipe behaviors for RTL
• Updated accordions to improve transitions and borders when animating
• Updated Sass customization docs to show how to properly override default variables
• Fixed tooltips not appearing after rapid focus in and out
• Fixed dropdown events not bubbling and forms inside dropdowns not propagating
• Removed flip option from dropdowns
• Disabled select now render consistently in Chrome
• Button elements now grow in .nav-fill and .nav-justified
• JavaScript plugin constructors now accept CSS selectors
• De-duped the .border-0 utility
• Fixed event handler removal in dropdown/carousel dispose
• Added new Parcel guide to the docs
• Added input focus blur Sass variable
• Updated .browserslistrc to drop Android and add Safari/iOS 12 as the new minimum version (completing our two latest major releases guideline for supported browsers).

🚀 Features

• #29017: Offcanvas as component
• #32245: Allow constructors to accept a CSS selector
• #33068: Add ol.list-group with pseudo-element numbers

🎨 CSS

• #32747: Add Sass docs (variables, mixins, and loops) to most pages
• #32925: Clear duplicated class border-0
• #33029: Remove explicit suppression of focus outline
• #33031: Add input focus blur variable
• #33068: Add ol.list-group with pseudo-element numbers
• #33127: Reset select:disabled opacity for Chrome
• #33149: Revamp accordion borders to fix pixel jumping
• #33154: Fix sibling card links in RTL
• #33210: Properly set .list-group-item color
• #33211: Validated controls border in input-group
• #33213: Buttons should grow in nav-fill & nav-justified
• #33325: Remove duplicate text-decoration style for abbr[title]
• #33426: Fix flush accordion styles

☕️ JavaScript

• #30621: modal: don't add margin & padding when sticky is not full width
• #32180: refactor: use a Map instead of an Object in dom/data
• #32245: Allow constructors to accept a CSS selector
• #32446: util: change isRTL to a function
• #32913: Fix carousel RTL and refactor code, fix rtl swipe issues
• #33000: Fix event handler removal in dropdown/carousel dispose
• #33056: modal: move common code to a new isAnimated method
• #33120: Remove the default positioning from .dropup
• #33136: Adjust SAFE_URL_PATTERN regex for use with test method of regexes.
• #33198: Dropdown — Drop flip option
• #33248: Accept data-bs-body option in the configuration object as well
• #33257: Dynamic tab should not show when triggered on disabled element
• #33261: Change the name of the Offcanvas constructor
• #33289: fix tooltips disappearing after trying to interact during their fade out animation
• #33382: Allow offcanvas to be initialized in open state
• #33385: Use more safe check for 'isDisabled' helper
• #33442: Allow data-toggle="dropdown" and form click events to bubble

📖 Docs

• #30909: Add Parcel Bundler doc
• #32747: Add Sass docs (variables, mixins, and loops) to most pages
• #33006: docs: add bootstrap5 zh-tw in translations
• #33049: Docs improvements after beta2
• #33081: Fix typo in nav-tabs docs
• #33123: Clarify docs around .navbar-brand
• #33207: Add an example of v4's media component in the flex utils docs
• #33246: Update the "Nonblocking files" section in the docs
• #33267: Grammatically update the doc
• #33300: Update modal's show method to accept relatedTarget as an argument
• #33301: Add example: toggle modal dialogs
• #33322: Fix Flex utilities documentation to add vertical space in example
• #33332: Mention .no-gutters removal in migration guide
• #33333: Fixes some copy around inline forms
• #33380: Utilities to Utilities API (Borders doc page)
• #33386: Update Customize > Sass docs to properly place default variable overrides
• #33430: Add link to new Parcel guide in starter template
• #33443: offcanvas-navbar: add missing redirect

🏭 Tests

• #32662: Unit tests for Popper V2
• #33045: Simplify karma.conf.js
• #33060: Add the missing expectations for touch events
• #33090: Add tests for DATA_KEY
• #33167: visual tests: add missing base-component dist file
• #33398: BrowserStack: test on iPhone 12

🧰 Misc

• #33067: CI: skip release drafter if we are not on our repo
• #33100: linkinator: replace --silent with --verbosity
• #33129: Rename _gh_pages to _site.
• #33130: CodeQL: skip dependabot PRs too
• #33148: Improve change-version script
• #33192: Bundlewatch: stop ignoring dependabot branches
• #33326: Delete the unused build/ship.sh
• #33329: @rollup/plugin-replace: specify preventAssignment: true
• #33397: .browserslistrc: remove the Edge workaround.
• #33399: .browserslistrc: remove Android and make Safari/iOS 12 the minimum
• #33401: README.md: use shields.io for the tests badge too

📦 Dependencies

Updated numerous devDependencies https://github.com/twbs/bootstrap/pulls?q=is%3Apr+is%3Aclosed+label%3Adependencies+project%3Atwbs%2Fbootstrap%2F34