Highlights

• Passing a percentage unit to the global abs() is deprecated since Dart Sass v1.65.0. It resulted in a deprecation warning when compiling Bootstrap with Dart Sass. This has been fixed internally by changing the values passed to the divide() function. The divide() function has not been fixed itself so that we can keep supporting node-sass cross-compatibility. In v6, this won't be an issue as we plan to drop support for node-sass.
• Using multiple ids in a collapse target wasn't working anymore and has been fixed.

Color modes

• Increased color contrast of form range track background in light and dark modes.
• Fixed table state rendering for color modes with a focus on the striped table in dark mode to increase color contrast.
• Allow <mark> color customization for color modes.

Docs

• Added alternative CDNs section in Getting started -> Download.
• Added Discord and Bootstrap subreddit links in README and Getting started -> Introduction:
  • Discord maintained by the community
  • Bootstrap subreddit

🎨 CSS

• #38816: Use box-shadow CSS variables shadow utilities
• #38955: Fix radios looking like ellipse on responsive mode
• #38976: Use box-shadow CSS vars instead of Sass vars in assets and variables
• #39030: Fix dart-sass deprecation warning
• #39033: Color mode: fix table state rendering
• #39095: Make form range track background more contrasted
• #39119: New Sass var $btn-link-focus-shadow-rgb to allow customization
• #39141: New Sass variable to handle <mark> dark mode bg color

☕️ JavaScript

• #38989: Collapse: Fix multiple ids calls
• #39046: Dropdown: reuse variable

📖 Docs

• #38873: Discord reddit bootstrap
• #38970: docs: add BootstrapVueNext to docs
• #38977: Docs: Add missing form elements in focusable elements
• #38978: Docs: Fix popover template role error
• #38995: introduction: drop details element
• #39037: Further improve image compression with oxipng and the latest jpegoptim
• #39054: Docs: Remove incorrect mention of .left- and .right- utilities from migration guide
• #39060: Migration: add back v5.0.0 heading
• #39145: Docs: add warning callout to add a workaround when jsDelivr is not available
• #39177: Fix: make theme selector tick icon visible when active in examples layout
• #39179: download: Reword CDN paragraph

🛠 Examples

• #38994: examples: update 3rd-party packages
• #39086: Correct grammar error in examples/starter-template

🌎 Accessibility

• #38978: Docs: Fix popover template role error
• #39095: Make form range track background more contrasted

🧰 Misc

• #38983: Improve change-version script
• #38984: Convert build scripts to ESM
• #39021: CI: update permissions for calibreapp-image-actions.yml

📦 Dependencies

• Updated numerous devDependencies