Release v5.1.0 · twbs/bootstrap

Highlights

Added experimental, opt-in CSS Grid support
Added support for responsive offcanvas components in navbars
Added new placeholders component for skeleton loading screens
Added support for horizontal collapsing in the collapse component
Added new stack and vertical rule helpers
Added tons of new CSS variables for body styles, colors, RGB colors, and more
Updated .bg-* and .text-* utilities to use CSS variables and new RGB CSS variables for real-time customization
Added four new component examples for dropdowns, footers, list groups, and modals
Updated modal and offcanvas backdrops to make them unique to each component
Reverted ability for .col-* classes to override .row-cols-* classes for now until we can fix some critical bugs

#31813: Add optional CSS grid
#31859: Add a "skeletons" component
#32319: Add maps for all colors, document how to extend color utilities
#33403: modal: change data-dismiss so that it can be outside of a modal using bs-target
#33781: Add utility classes for opacity
#33986: New helpers: .hstack, .vstack, and .vr
#34253: Add horizontal collapse support
#34273: Offcanvas navbar
#34333: Accept argument of different types in the getInstance method

#31813: Add optional CSS grid
#32319: Add maps for all colors, document how to extend color utilities
#33781: Add utility classes for opacity
#33986: New helpers: .hstack, .vstack, and .vr
#34100: Updated utility API (css-vars utils and new bg/color utils), plus new root CSS variables
#34253: Add horizontal collapse support
#34273: Offcanvas navbar
#34432: More concise improvements for add() and subtract()
#34440: Add null $card-box-shadow variable
#34445: fix(forms): prevent color control from shrinking
#34475: Make text decoration consistent with other anchors
#34481: Make the $accordion-icon-color default value consistent with the $accordion-button-color
#34572: Clean up a couple CSS Grid issues
#34612: Revert "Allow individual grid classes to override .row-cols"
#34651: Update $input-bg to use $body-bg

#33402: Changes to Alert component to match the others
#33403: modal: change data-dismiss so that it can be outside of a modal using bs-target
#33603: Fix Manipulator.offset()
#33610: Toasts: Change showing timings and classes to keep toast display:none by default
#33865: Add shift-tab keyboard support for dialogs (modal & Offcanvas components)
#33866: Add dynamic, live alerts example to docs
#34170: Use a streamlined way to trigger component dismiss
#34205: Cleanup tooltip & popover components
#34207: Make proper use of the SelectorEngine in ScrollSpy
#34215: Use the switch statement instead of if
#34220: Do a major cleanup in Collapse.js
#34333: Accept argument of different types in the getInstance method
#34441: util.js: remove Selector.findOne() dependency
#34458: Dropdown cleanups
#34543: Fix Util.reflow function and add documentation
#34619: tooltip: move repeated strings to constants
#34620: Enable a few eslint-config-xo rules
#34628: Regression on tooltip template creation process.

#32319: Add maps for all colors, document how to extend color utilities
#33866: Add dynamic, live alerts example to docs
#34100: Updated utility API (css-vars utils and new bg/color utils), plus new root CSS variables
#34406: Fix site params variable on themes section
#34472: Added new Offcanvas file to import example
#34517: Update nav-tab.md
#34526: Add: GitHub Octicons to the list
#34557: docs: minor image compression improvements
#34573: Update the custom Sass import docs
#34574: Document change to hr in v5
#34577: Make note of _root.scss being required
#34578: Rename Build Tools page to Contribute
#34605: Collapse page: add a link to the accordion page
#34637: Improved docs describing media-breakpoint-down breakpoints

#33865: Add shift-tab keyboard support for dialogs (modal & Offcanvas components)

#34100: Updated utility API (css-vars utils and new bg/color utils), plus new root CSS variables