Remove unnecessary <form> elements, add a submit button to validation example

Add explicit title to iframe embed

Add explicit scope="col" to <th> column headers

Add `.caption-top` for tables (#30435)

* Move caption-side to <table> element in Reboot

* Add class for .caption-top

File chooser size (#30040)

Co-authored-by: David Van Doninck <david.vandoninck@intracto.com>
Co-authored-by: XhmikosR <xhmikosr@gmail.com>
Co-authored-by: Martijn Cuppens <martijn.cuppens@gmail.com>

Make form-check label customizable (#30426)

Co-authored-by: Martijn Cuppens <martijn.cuppens@gmail.com>

Update modal docs (#30325)

Added focus state to .btn-link (#30036)

Use WCAG contrast algo (#30168)

Use next dropdown menu instead of first of the parent

Simplify input groups by dropping `.input-group-prepend` and `.input-group-append`

Documentation skip links (#30073)

* docs(skip-links): add a skip to main navigation skip link

* docs(skip-links): revamp skip-links pattern

* docs(navs): use aria-label on navs

* docs(navs): use 'docs navigation' label in sidebar nav

Use a link helper instead of the text color utility

Fix wrapping bug (#30345)

Merge pull request #30389 from twbs/underline-links

v5: Underline links

Merge branch 'master' into underline-links

Remove redundant text decoration from hover states

Restore hover text decoration on toc links

Bump linkinator from 2.0.3 to 2.0.4 (#30424)

Bumps [linkinator](https://github.com/JustinBeckwith/linkinator) from 2.0.3 to 2.0.4.
- [Release notes](https://github.com/JustinBeckwith/linkinator/releases)
- [Commits](https://github.com/JustinBeckwith/linkinator/compare/v2.0.3...v2.0.4)

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Bump rollup from 2.0.6 to 2.1.0 (#30423)

Bumps [rollup](https://github.com/rollup/rollup) from 2.0.6 to 2.1.0.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rollup/rollup/compare/v2.0.6...v2.1.0)

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Fix commonmark syntax (#30276)

* Fix commonmark syntax

related https://github.com/gohugoio/hugo/issues/6553

* Fix indentation

Co-authored-by: XhmikosR <xhmikosr@gmail.com>

Update Legacy Edge support

Remove underline hack for breadcrumbs

Remove Internet Explorer leftovers

Drop IE support from Sass

Remove Internet Explorer leftovers

Remove IE compatibility JS code

Remove IE in .browserslistrc

Revert "Revert "remove `--compress typeofs=false` from terser.""

This reverts commit dd75ac6c25f6afb4075c1b9fd320de2e97b246d8.

Revert "Revert "Add information about IE 11 compatibility.""

This reverts commit bcf76ef5f0d6305bb8aa7a83ae7fdc45256f7f08.

Revert "Revert "Remove IE-specific breadcrumb CSS hack""

This reverts commit 15d242d21ad67fa5b762eb5bdfbcdfb68b9bcce1.

Update docs-navbar.html (#30418)

Open icons in a new tab like the rest of the external links

Regenerate package-lock.json (#30413)

Fixes a few npm vulnerabilities.

Change navbar GitHub link to org (#30041)

Co-authored-by: Laurens Nicolay <laurens.nicolay@intracto.com>

fix: ensure `totype` always returns stringified null/undefined when null/undefined is passed (#30383)

Tighten bundlesize JS limits.

Switch to strings constants.

This allows the minifier to mangle the constants. It also allows the linter to find unused strings properly.

While at it, remove a few unused properties.

File                        Before      After       Diff
--------------------------------------------------------
bootstrap.bundle.min.js     23.61 kB    22.61 kB    -1.00 kB (-4.23 %)
bootstrap.min.js            17.04 kB    16.08 kB    -0.96 kB (-5.63 %)

Clarify card group behavior (#30416)

Co-authored-by: Mark Otto <markd.otto@gmail.com>

Dashboard example: use the core `.position-sticky` class. (#30408)

Bump terser from 4.6.6 to 4.6.7 (#30410)

Bumps [terser](https://github.com/terser/terser) from 4.6.6 to 4.6.7.
- [Release notes](https://github.com/terser/terser/releases)
- [Changelog](https://github.com/terser/terser/blob/v4.6.7/CHANGELOG.md)
- [Commits](https://github.com/terser/terser/compare/v4.6.6...v4.6.7)

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remove dupe text-decoration

supress underline on toc

Remove links from docs sidebar

Enable underlines for links

Bump eslint-plugin-unicorn from 17.1.0 to 17.2.0 (#30405)

Bumps [eslint-plugin-unicorn](https://github.com/sindresorhus/eslint-plugin-unicorn) from 17.1.0 to 17.2.0.
- [Release notes](https://github.com/sindresorhus/eslint-plugin-unicorn/releases)
- [Commits](https://github.com/sindresorhus/eslint-plugin-unicorn/compare/v17.1.0...v17.2.0)

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Bump hugo-bin from 0.55.0 to 0.55.1 (#30403)

Bumps [hugo-bin](https://github.com/fenneclab/hugo-bin) from 0.55.0 to 0.55.1.
- [Release notes](https://github.com/fenneclab/hugo-bin/releases)
- [Commits](https://github.com/fenneclab/hugo-bin/compare/v0.55.0...v0.55.1)

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Bump rollup from 2.0.3 to 2.0.6 (#30404)

Bumps [rollup](https://github.com/rollup/rollup) from 2.0.3 to 2.0.6.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rollup/rollup/compare/v2.0.3...v2.0.6)

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Bump vnu-jar from 20.2.28 to 20.3.16 (#30402)

Bumps [vnu-jar](https://github.com/validator/validator) from 20.2.28 to 20.3.16.
- [Release notes](https://github.com/validator/validator/releases)
- [Changelog](https://github.com/validator/validator/blob/master/CHANGELOG.md)
- [Commits](https://github.com/validator/validator/compare/v20.2.28...20.3.16)

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fix(css): adds a new opacity var

Fixes beeing able to control `.is-valid` & `.is-invalid` input:focus opacity

style: applies ascending order

style: fixes indent (#30396)

Fix pseudo paddings and height

feat(css): groups hr element

Use `display: block;` for form elements

Limit to `scroll-margin-top` to elements with an id

Use `scroll-margin-top` instead of pseudo hack

Remove `.bd-example-responsive-containers`

Added in https://github.com/twbs/bootstrap/pull/29095/files#diff-d4fb29267ed3a7c27482bbeac1723ab6 but never used

.browserslistrc: bump the minimum supported version to 16.16299 (#30378)

This is what is currently supported by Microsoft https://en.wikipedia.org/wiki/Microsoft_Edge#Release_history

Change container padding to 1rem

fix indention

Co-Authored-By: Shohei Yoshida <ysds.code@gmail.com>

Add row-cols-auto and responsive variants

bootstrap-grid.css: Only apply `box-sizing: border-box` to the columns instead of using the universal selector

Remove card decks in favor of the grid

Bootstrap 5 migration guide

Bump bundlesizes

Update examples to the Bootstrap 5 grid

Bootstrap 5 grid documentation

Co-authored-by: Mark Otto <markd.otto@gmail.com>

Bootstrap 5 grid

Bump eslint-plugin-unicorn from 16.1.1 to 17.1.0 (#30373)

Bumps [eslint-plugin-unicorn](https://github.com/sindresorhus/eslint-plugin-unicorn) from 16.1.1 to 17.1.0.
- [Release notes](https://github.com/sindresorhus/eslint-plugin-unicorn/releases)
- [Commits](https://github.com/sindresorhus/eslint-plugin-unicorn/compare/v16.1.1...v17.1.0)

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Bump hugo-bin from 0.54.0 to 0.55.0 (#30371)

Bumps [hugo-bin](https://github.com/fenneclab/hugo-bin) from 0.54.0 to 0.55.0.
- [Release notes](https://github.com/fenneclab/hugo-bin/releases)
- [Commits](https://github.com/fenneclab/hugo-bin/compare/v0.54.0...v0.55.0)

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Bump rollup from 2.0.2 to 2.0.3 (#30374)

Bumps [rollup](https://github.com/rollup/rollup) from 2.0.2 to 2.0.3.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rollup/rollup/compare/v2.0.2...v2.0.3)

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Bump stylelint from 13.2.0 to 13.2.1 (#30375)

Bumps [stylelint](https://github.com/stylelint/stylelint) from 13.2.0 to 13.2.1.
- [Release notes](https://github.com/stylelint/stylelint/releases)
- [Changelog](https://github.com/stylelint/stylelint/blob/master/CHANGELOG.md)
- [Commits](https://github.com/stylelint/stylelint/compare/13.2.0...13.2.1)

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Bump lockfile-lint from 4.0.0 to 4.1.0 (#30372)

Bumps [lockfile-lint](https://github.com/lirantal/lockfile-lint) from 4.0.0 to 4.1.0.
- [Release notes](https://github.com/lirantal/lockfile-lint/releases)
- [Commits](https://github.com/lirantal/lockfile-lint/compare/lockfile-lint@4.0.0...lockfile-lint@4.1.0)

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Bump rollup-plugin-babel from 4.3.3 to 4.4.0 (#30369)

Bumps [rollup-plugin-babel](https://github.com/rollup/rollup-plugin-babel) from 4.3.3 to 4.4.0.
- [Release notes](https://github.com/rollup/rollup-plugin-babel/releases)
- [Changelog](https://github.com/rollup/rollup-plugin-babel/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rollup/rollup-plugin-babel/compare/v4.3.3...v4.4.0)

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Minor `.nav-tabs` optimization (#30288)

Improvement: harmonize usage of constants (#30285)

`prev()` function fails when non-element nodes are present (#30117)

The `prev()` function doesn't take nodes other than elements into account. Also we could simplify things a lot using the `previousElementSibling` property. This property isn't fully supported in IE, it only works for elements, but since the `element` variable is an element, we can safely use it here.

I've also added an additional test.

I don't think we had this issue in v4, since we relied on jQuery back then.

Ref. https://developer.mozilla.org/en-US/docs/Web/API/NonDocumentTypeChildNode/nextElementSibling

Remove babel-eslint (#30355)

Update rollup to v2.0.2 (#30356)

style(css): removes `&-*` scss pattern

Remove unneeded og:image:secure_url from social.html (#30362)

The image is always available over HTTPS anyway

Co-authored-by: XhmikosR <xhmikosr@gmail.com>

Update browsers + devices support page to remove IE10, IE11 Mobile (#30363)

This PR removes unsupported browsers from supported tables based on the current `.browserlistrc` config

Align navbar in docs (#30359)

Regenerate package-lock.json (#30352)

Bump hugo-bin from 0.53.3 to 0.54.0 (#30351)

Bumps [hugo-bin](https://github.com/fenneclab/hugo-bin) from 0.53.3 to 0.54.0.
- [Release notes](https://github.com/fenneclab/hugo-bin/releases)
- [Commits](https://github.com/fenneclab/hugo-bin/compare/v0.53.3...v0.54.0)

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Bump terser from 4.6.4 to 4.6.6 (#30350)

Bumps [terser](https://github.com/terser/terser) from 4.6.4 to 4.6.6.
- [Release notes](https://github.com/terser/terser/releases)
- [Changelog](https://github.com/terser/terser/blob/master/CHANGELOG.md)
- [Commits](https://github.com/terser/terser/compare/v4.6.4...v4.6.6)

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Bump cross-env from 7.0.0 to 7.0.2 (#30349)

Bumps [cross-env](https://github.com/kentcdodds/cross-env) from 7.0.0 to 7.0.2.
- [Release notes](https://github.com/kentcdodds/cross-env/releases)
- [Changelog](https://github.com/kentcdodds/cross-env/blob/master/CHANGELOG.md)
- [Commits](https://github.com/kentcdodds/cross-env/compare/v7.0.0...v7.0.2)

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Bump @babel/preset-env from 7.8.6 to 7.8.7 (#30348)

Bumps [@babel/preset-env](https://github.com/babel/babel) from 7.8.6 to 7.8.7.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/master/CHANGELOG.md)
- [Commits](https://github.com/babel/babel/compare/v7.8.6...v7.8.7)

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Bump @babel/core from 7.8.6 to 7.8.7 (#30347)

Bumps [@babel/core](https://github.com/babel/babel) from 7.8.6 to 7.8.7.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/master/CHANGELOG.md)
- [Commits](https://github.com/babel/babel/compare/v7.8.6...v7.8.7)

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Bump rollup from 1.32.0 to 1.32.1 (#30346)

Bumps [rollup](https://github.com/rollup/rollup) from 1.32.0 to 1.32.1.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rollup/rollup/compare/v1.32.0...v1.32.1)

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Update clipboard.js to v2.0.6 (#30341)

build/ship.sh: shellcheck fixes. (#30197)

Also add `set -e` so that if a command fails the whole script fails too.

$link-decoration: underline affects some components (#30262)

Co-authored-by: Shohei Yoshida <fellows3@gmail.com>
Co-authored-by: Martijn Cuppens <martijn.cuppens@gmail.com>

reboot file: adds some grouping and comments standardizations (#30340)

* style: groups sections

- adds two nl before any section
- extract elements from wrong section ex: `mark` from `form`

* style: format comments

* style: sticks all `see`s with the description

- sticks
- renames

* style: removes not needed spaces

* style: removes not needed number like other cases

* style: stick credits with description

* style: adds missing number

Add `loading="lazy"` in images (#30199)

Switch versions & docs search (#30336)

CSS & alignment tweaks

Example dashboard: fix menu disappearing on small viewport

Embedded examples cleanup (#30330)

* Thin out embedded examples borders, rounded their corners
* Fix busted class
* Adjust nesting of .bd-example styles, tweak padding while I'm at it
* combine selectors
* cleanup some margins that always cancel each other out
* Remove redundant universal selector

Co-authored-by: Martijn Cuppens <martijn.cuppens@gmail.com>

Fix `th` alignment for Safari (#30323)