813 changed files with 60522 additions and 104287 deletions
--- a/.babelrc.js
+++ b/.babelrc.js
@ -1,12 +1,20 @@
 module.exports = {
  presets: [
    [
-      '@babel/preset-env',
+      '@babel/env',
      {
        loose: true,
-        bugfixes: true,
-        modules: false
+        modules: false,
+        exclude: ['transform-typeof-symbol']
      }
    ]
-  ]
+  ],
+  plugins: [
+    '@babel/plugin-proposal-object-rest-spread'
+  ],
+  env: {
+    test: {
+      plugins: [ 'istanbul' ]
+    }
+  }
 };
--- a/.browserslistrc
+++ b/.browserslistrc
@ -1,15 +1,13 @@
 # https://github.com/browserslist/browserslist#readme

->= 0.5%
-last 2 major versions
+>= 1%
+last 1 major version
 not dead
-Chrome >= 60
-Firefox >= 60
-# needed since Legacy Edge still has usage; 79 was the first Chromium Edge version
-# should be removed in the future when its usage drops or when it's moved to dead browsers
-not Edge < 79
-Firefox ESR
-iOS >= 10
-Safari >= 10
-Android >= 6
-not Explorer <= 11
+Chrome >= 45
+Firefox >= 38
+Edge >= 12
+Explorer >= 10
+iOS >= 9
+Safari >= 9
+Android >= 4.4
+Opera >= 30
--- a/.bundlewatch.config.json
+++ b/.bundlewatch.config.json
@ -1,66 +0,0 @@
-{
-  "files": [
-    {
-      "path": "./dist/css/bootstrap-grid.css",
-      "maxSize": "7 kB"
-    },
-    {
-      "path": "./dist/css/bootstrap-grid.min.css",
-      "maxSize": "6 kB"
-    },
-    {
-      "path": "./dist/css/bootstrap-reboot.css",
-      "maxSize": "2.25 kB"
-    },
-    {
-      "path": "./dist/css/bootstrap-reboot.min.css",
-      "maxSize": "2 kB"
-    },
-    {
-      "path": "./dist/css/bootstrap-utilities.css",
-      "maxSize": "7.5 kB"
-    },
-    {
-      "path": "./dist/css/bootstrap-utilities.min.css",
-      "maxSize": "6.75 kB"
-    },
-    {
-      "path": "./dist/css/bootstrap.css",
-      "maxSize": "24 kB"
-    },
-    {
-      "path": "./dist/css/bootstrap.min.css",
-      "maxSize": "22 kB"
-    },
-    {
-      "path": "./dist/js/bootstrap.bundle.js",
-      "maxSize": "41 kB"
-    },
-    {
-      "path": "./dist/js/bootstrap.bundle.min.js",
-      "maxSize": "21.5 kB"
-    },
-    {
-      "path": "./dist/js/bootstrap.esm.js",
-      "maxSize": "27 kB"
-    },
-    {
-      "path": "./dist/js/bootstrap.esm.min.js",
-      "maxSize": "18 kB"
-    },
-    {
-      "path": "./dist/js/bootstrap.js",
-      "maxSize": "28 kB"
-    },
-    {
-      "path": "./dist/js/bootstrap.min.js",
-      "maxSize": "15.5 kB"
-    }
-  ],
-  "ci": {
-    "trackBranches": [
-      "main",
-      "v4-dev"
-    ]
-  }
-}
--- a/.editorconfig
+++ b/.editorconfig
@ -9,3 +9,6 @@ indent_size = 2
 indent_style = space
 insert_final_newline = true
 trim_trailing_whitespace = true
+
+[*.md]
+trim_trailing_whitespace = false
--- a/.eslintignore
+++ b/.eslintignore
@ -3,4 +3,4 @@
 **/vendor/
 /_gh_pages/
 /js/coverage/
-/site/static/sw.js
+/package.js
--- a/.eslintrc.json
+++ b/.eslintrc.json
@ -1,58 +1,233 @@
 {
  "root": true,
-  "extends": [
-    "plugin:import/errors",
-    "plugin:import/warnings",
-    "plugin:unicorn/recommended",
-    "xo/esnext",
-    "xo/browser"
-  ],
+  "parser": "babel-eslint",
+  "env": {
+    "browser": true,
+    "es6": true
+  },
+  "extends": ["eslint:recommended"],
  "rules": {
+    // Possible Errors
+    "no-await-in-loop": "error",
+    "no-extra-parens": "error",
+    "no-prototype-builtins": "error",
+    "no-template-curly-in-string": "error",
+    "valid-jsdoc": "error",
+
+    // Best Practices
+    "accessor-pairs": "error",
+    "array-callback-return": "error",
+    "block-scoped-var": "error",
+    "class-methods-use-this": "off",
+    "complexity": "error",
+    "consistent-return": "error",
+    "curly": "error",
+    "default-case": "error",
+    "dot-location": ["error", "property"],
+    "dot-notation": "error",
+    "eqeqeq": "error",
+    "guard-for-in": "error",
+    "no-alert": "error",
+    "no-caller": "error",
+    "no-div-regex": "error",
+    "no-else-return": "error",
+    "no-empty-function": "error",
+    "no-eq-null": "error",
+    "no-eval": "error",
+    "no-extend-native": "error",
+    "no-extra-bind": "error",
+    "no-extra-label": "error",
+    "no-floating-decimal": "error",
+    "no-implicit-coercion": "error",
+    "no-implicit-globals": "error",
+    "no-implied-eval": "error",
+    "no-invalid-this": "off",
+    "no-iterator": "error",
+    "no-labels": "error",
+    "no-lone-blocks": "error",
+    "no-loop-func": "error",
+    "no-magic-numbers": ["error", {
+      "ignore": [-1, 0, 1],
+      "ignoreArrayIndexes": true
+      }
+    ],
+    "no-multi-spaces": ["error", {
+      "ignoreEOLComments": true,
+      "exceptions": {
+        "AssignmentExpression": true,
+        "ArrowFunctionExpression": true,
+        "CallExpression": true,
+        "VariableDeclarator": true
+        }
+      }
+    ],
+    "no-multi-str": "error",
+    "no-new": "error",
+    "no-new-func": "error",
+    "no-new-wrappers": "error",
+    "no-octal-escape": "error",
+    "no-param-reassign": "off",
+    "no-proto": "error",
+    "no-restricted-properties": "error",
+    "no-return-assign": "error",
+    "no-return-await": "error",
+    "no-script-url": "error",
+    "no-self-compare": "error",
+    "no-sequences": "error",
+    "no-throw-literal": "error",
+    "no-unmodified-loop-condition": "error",
+    "no-unused-expressions": "error",
+    "no-useless-call": "error",
+    "no-useless-concat": "error",
+    "no-useless-return": "error",
+    "no-void": "error",
+    "no-warning-comments": "off",
+    "no-with": "error",
+    "prefer-promise-reject-errors": "error",
+    "radix": "error",
+    "require-await": "error",
+    "vars-on-top": "error",
+    "wrap-iife": "error",
+    "yoda": "error",
+
+    // Strict Mode
+    "strict": "error",
+
+    // Variables
+    "init-declarations": "off",
+    "no-catch-shadow": "error",
+    "no-label-var": "error",
+    "no-restricted-globals": "error",
+    "no-shadow": "off",
+    "no-shadow-restricted-names": "error",
+    "no-undef-init": "error",
+    "no-undefined": "error",
+    "no-use-before-define": "off",
+
+    // Node.js and CommonJS
+    "callback-return": "off",
+    "global-require": "error",
+    "handle-callback-err": "error",
+    "no-mixed-requires": "error",
+    "no-new-require": "error",
+    "no-path-concat": "error",
+    "no-process-env": "error",
+    "no-process-exit": "error",
+    "no-restricted-modules": "error",
+    "no-sync": "error",
+
+    // Stylistic Issues
+    "array-bracket-spacing": "error",
+    "block-spacing": "error",
+    "brace-style": "error",
+    "camelcase": "error",
    "capitalized-comments": "off",
-    "indent": [
-      "error",
-      2,
-      {
-        "MemberExpression": "off",
-        "SwitchCase": 1
-      }
-    ],
-    "max-params": [
-      "warn",
-      5
-    ],
-    "multiline-ternary": [
-      "error",
-      "always-multiline"
-    ],
-    "new-cap": [
-      "error",
-      {
-        "properties": false
-      }
-    ],
-    "no-console": "error",
-    "object-curly-spacing": [
-      "error",
-      "always"
-    ],
-    "prefer-named-capture-group": "off",
-    "semi": [
-      "error",
-      "never"
-    ],
-    "unicorn/consistent-function-scoping": "off",
-    "unicorn/explicit-length-check": "off",
-    "unicorn/no-array-callback-reference": "off",
-    "unicorn/no-for-loop": "off",
-    "unicorn/no-null": "off",
-    "unicorn/no-unused-properties": "error",
-    "unicorn/no-useless-undefined": "off",
-    "unicorn/prefer-dom-node-append": "off",
-    "unicorn/prefer-dom-node-dataset": "off",
-    "unicorn/prefer-dom-node-remove": "off",
-    "unicorn/prefer-optional-catch-binding": "off",
-    "unicorn/prefer-query-selector": "off",
-    "unicorn/prevent-abbreviations": "off"
+    "comma-dangle": "error",
+    "comma-spacing": "error",
+    "comma-style": "error",
+    "computed-property-spacing": "error",
+    "consistent-this": "error",
+    "eol-last": "error",
+    "func-call-spacing": "error",
+    "func-name-matching": "error",
+    "func-names": "off",
+    "func-style": ["error", "declaration"],
+    "id-blacklist": "error",
+    "id-length": "off",
+    "id-match": "error",
+    "indent": ["error", 2, { "SwitchCase": 1 }],
+    "jsx-quotes": "error",
+    "key-spacing": "off",
+    "keyword-spacing": "error",
+    "linebreak-style": ["error", "unix"],
+    "line-comment-position": "off",
+    "lines-around-comment": "off",
+    "lines-around-directive": "error",
+    "max-depth": ["error", 10],
+    "max-len": "off",
+    "max-lines": "off",
+    "max-nested-callbacks": "error",
+    "max-params": "off",
+    "max-statements": "off",
+    "max-statements-per-line": "error",
+    "multiline-ternary": "off",
+    "new-cap": ["error", { "capIsNewExceptionPattern": "$.*" }],
+    "newline-after-var": "off",
+    "newline-per-chained-call": ["error", { "ignoreChainWithDepth": 5 }],
+    "new-parens": "error",
+    "no-array-constructor": "error",
+    "no-bitwise": "error",
+    "no-continue": "off",
+    "no-inline-comments": "off",
+    "no-lonely-if": "error",
+    "no-mixed-operators": "off",
+    "no-multi-assign": "error",
+    "no-multiple-empty-lines": "error",
+    "nonblock-statement-body-position": "error",
+    "no-negated-condition": "off",
+    "no-nested-ternary": "error",
+    "no-new-object": "error",
+    "no-plusplus": "off",
+    "no-restricted-syntax": "error",
+    "no-tabs": "error",
+    "no-ternary": "off",
+    "no-trailing-spaces": "error",
+    "no-underscore-dangle": "off",
+    "no-unneeded-ternary": "error",
+    "no-whitespace-before-property": "error",
+    "object-curly-newline": ["error", { "minProperties": 1 }],
+    "object-curly-spacing": ["error", "always"],
+    "object-property-newline": "error",
+    "one-var": ["error", "never"],
+    "one-var-declaration-per-line": "error",
+    "operator-assignment": "error",
+    "operator-linebreak": "error",
+    "padded-blocks": ["error", "never"],
+    "padding-line-between-statements": "off",
+    "quote-props": ["error", "as-needed"],
+    "quotes": ["error", "single"],
+    "require-jsdoc": "off",
+    "semi": ["error", "never"],
+    "semi-spacing": "error",
+    "sort-keys": "off",
+    "sort-vars": "error",
+    "space-before-blocks": "error",
+    "space-before-function-paren": ["error", {
+      "anonymous": "always",
+      "named": "never"
+    }],
+    "space-in-parens": "error",
+    "space-infix-ops": "error",
+    "space-unary-ops": "error",
+    "spaced-comment": "error",
+    "template-tag-spacing": "error",
+    "unicode-bom": "error",
+    "wrap-regex": "off",
+
+    // ECMAScript 6
+    "arrow-body-style": ["error", "as-needed"],
+    "arrow-parens": "error",
+    "arrow-spacing": "error",
+    "generator-star-spacing": "error",
+    "no-confusing-arrow": "error",
+    "no-duplicate-imports": "error",
+    "no-restricted-imports": "error",
+    "no-useless-computed-key": "error",
+    "no-useless-constructor": "error",
+    "no-useless-rename": "error",
+    "no-var": "error",
+    "object-shorthand": "error",
+    "prefer-arrow-callback": "error",
+    "prefer-const": "error",
+    "prefer-destructuring": "off",
+    "prefer-numeric-literals": "error",
+    "prefer-rest-params": "error",
+    "prefer-spread": "error",
+    "prefer-template": "error",
+    "rest-spread-spacing": "error",
+    "sort-imports": "error",
+    "symbol-description": "error",
+    "template-curly-spacing": "error",
+    "yield-star-spacing": "error"
  }
 }
--- a/.gitattributes
+++ b/.gitattributes
@ -1,8 +1,18 @@
 # Enforce Unix newlines
-* text=auto eol=lf
+*.css   text eol=lf
+*.html  text eol=lf
+*.js    text eol=lf
+*.json  text eol=lf
+*.md    text eol=lf
+*.rb    text eol=lf
+*.scss  text eol=lf
+*.svg   text eol=lf
+*.txt   text eol=lf
+*.xml   text eol=lf
+*.yml   text eol=lf

 # Don't diff or textually merge source maps
-*.map binary
+*.map   binary

 bootstrap.css linguist-vendored=false
 bootstrap.js linguist-vendored=false
--- a/.github/CONTRIBUTING.md
+++ b/.github/CONTRIBUTING.md
@ -19,8 +19,7 @@ and [submitting pull requests](#pull-requests), but please respect the following
 restrictions:

 * Please **do not** use the issue tracker for personal support requests.  Stack
-  Overflow ([`bootstrap-5`](https://stackoverflow.com/questions/tagged/bootstrap-5) tag),
-  [Slack](https://bootstrap-slack.herokuapp.com/) or [IRC](README.md#community) are better places to get help.
+  Overflow ([`bootstrap-4`](https://stackoverflow.com/questions/tagged/bootstrap-4) tag), [Slack](https://bootstrap-slack.herokuapp.com/) or [IRC](README.md#community) are better places to get help.

 * Please **do not** derail or troll issues. Keep the discussion on topic and
  respect the opinions of others.
@ -58,14 +57,15 @@ Good bug reports are extremely helpful, so thanks!

 Guidelines for bug reports:

-0. **[Validate your HTML](https://html5.validator.nu/)** to ensure your
+0. **Validate and lint your code** &mdash; [validate your HTML](https://html5.validator.nu/)
+   and [lint your HTML](https://github.com/twbs/bootlint) to ensure your
   problem isn't caused by a simple error in your own code.

 1. **Use the GitHub issue search** &mdash; check if the issue has already been
   reported.

 2. **Check if the issue has been fixed** &mdash; try to reproduce it using the
-   latest `main` (or `v4-dev` branch if the issue is about v4) in the repository.
+   latest `master` or development branch in the repository.

 3. **Isolate the problem** &mdash; ideally create a [reduced test
   case](https://css-tricks.com/reduced-test-cases/) and a live example.
@ -100,13 +100,18 @@ Example:
 ### Reporting upstream browser bugs

 Sometimes bugs reported to us are actually caused by bugs in the browser(s) themselves, not bugs in Bootstrap per se.
+When feasible, we aim to report such upstream bugs to the relevant browser vendor(s), and then list them on our [Wall of Browser Bugs](https://getbootstrap.com/browser-bugs/) and [document them in MDN](https://developer.mozilla.org/en-US/docs/Web).

-| Vendor(s)     | Browser(s)                   | Rendering engine | Bug reporting website(s)                               | Notes                                                    |
-| ------------- | ---------------------------- | ---------------- | ------------------------------------------------------ | -------------------------------------------------------- |
-| Mozilla       | Firefox                      | Gecko            | https://bugzilla.mozilla.org/enter_bug.cgi             | "Core" is normally the right product option to choose.   |
-| Apple         | Safari                       | WebKit           | https://bugs.webkit.org/enter_bug.cgi?product=WebKit   | In Apple's bug reporter, choose "Safari" as the product. |
-| Google, Opera | Chrome, Chromium, Opera v15+ | Blink            | https://bugs.chromium.org/p/chromium/issues/list       | Click the "New issue" button.                            |
-| Microsoft     | Edge                         | Blink            | https://developer.microsoft.com/en-us/microsoft-edge/  | Go to "Help > Send Feedback" from the browser            |
+| Vendor(s)     | Browser(s)                   | Rendering engine | Bug reporting website(s)                                                              | Notes                                                    |
+| ------------- | ---------------------------- | ---------------- | ------------------------------------------------------------------------------------- | -------------------------------------------------------- |
+| Mozilla       | Firefox                      | Gecko            | https://bugzilla.mozilla.org/enter_bug.cgi                                            | "Core" is normally the right product option to choose.   |
+| Apple         | Safari                       | WebKit           | https://bugs.webkit.org/enter_bug.cgi?product=WebKit <br> https://bugreport.apple.com/ | In Apple's bug reporter, choose "Safari" as the product. |
+| Google, Opera | Chrome, Chromium, Opera v15+ | Blink            | https://bugs.chromium.org/p/chromium/issues/list                                      | Click the "New issue" button.                            |
+| Microsoft     | Edge                         | EdgeHTML         | https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/                 |                                                          |
+
+### Issues bots
+
+[@twbs-lmvtfy](https://github.com/twbs-lmvtfy) is a Bootstrap bot that hangs out in our GitHub issue tracker and automatically checks for HTML validation errors in live examples (e.g. jsFiddles, JS Bins, Bootplys, Plunks, CodePens, etc.) posted in issue comments. If it finds any errors, it will post a follow-up comment on the issue and point out the errors. If this happens with an example you've posted, please fix the errors and post an updated live example. If you opened a bug report, please check whether the bug still occurs with your revised, valid live example. If the bug no longer occurs, it was probably due to your invalid HTML rather than something in Bootstrap and we'd appreciate it if you could close out the GitHub issue.


 ## Feature requests
@ -123,25 +128,23 @@ Good pull requests—patches, improvements, new features—are a fantastic
 help. They should remain focused in scope and avoid containing unrelated
 commits.

-**Please ask first** before embarking on any **significant** pull request (e.g.
+**Please ask first** before embarking on any significant pull request (e.g.
 implementing features, refactoring code, porting to a different language),
 otherwise you risk spending a lot of time working on something that the
-project's developers might not want to merge into the project. For trivial
-things, or things that don't require a lot of your time, you can go ahead and
-make a PR.
+project's developers might not want to merge into the project.

 Please adhere to the [coding guidelines](#code-guidelines) used throughout the
 project (indentation, accurate comments, etc.) and any other requirements
 (such as test coverage).

-**Do not edit `bootstrap.css` or `bootstrap.js`, and do not commit
-any dist files (`dist/` or `js/dist`).** Those files are automatically generated by our build tools. You should
-edit the source files in [`/bootstrap/scss/`](https://github.com/twbs/bootstrap/tree/main/scss)
-and/or [`/bootstrap/js/src/`](https://github.com/twbs/bootstrap/tree/main/js/src) instead.
+**Do not edit `bootstrap.css`, or `bootstrap.js`
+directly!** Those files are automatically generated. You should edit the
+source files in [`/bootstrap/scss/`](https://github.com/twbs/bootstrap/tree/master/scss)
+and/or [`/bootstrap/js/`](https://github.com/twbs/bootstrap/tree/master/js) instead.

 Similarly, when contributing to Bootstrap's documentation, you should edit the
 documentation source files in
-[the `/bootstrap/site/content/docs/` directory of the `main` branch](https://github.com/twbs/bootstrap/tree/main/site/content/docs).
+[the `/bootstrap/docs/` directory of the `master` branch](https://github.com/twbs/bootstrap/tree/master/docs).
 **Do not edit the `gh-pages` branch.** That branch is generated from the
 documentation source files and is managed separately by the Bootstrap Core Team.

@ -163,8 +166,8 @@ included in the project:
 2. If you cloned a while ago, get the latest changes from upstream:

   ```bash
-   git checkout main
-   git pull upstream main
+   git checkout master
+   git pull upstream master
   ```

 3. Create a new topic branch (off the main project development branch) to
@ -183,7 +186,7 @@ included in the project:
 5. Locally merge (or rebase) the upstream development branch into your topic branch:

   ```bash
-   git pull [--rebase] upstream main
+   git pull [--rebase] upstream master
   ```

 6. Push your topic branch up to your fork:
@ -193,12 +196,12 @@ included in the project:
   ```

 7. [Open a Pull Request](https://help.github.com/articles/about-pull-requests/)
-    with a clear title and description against the `main` branch.
+    with a clear title and description against the `master` branch.

 **IMPORTANT**: By submitting a patch, you agree to allow the project owners to
-license your work under the terms of the [MIT License](../LICENSE) (if it
+license your work under the terms of the [MIT License](LICENSE) (if it
 includes code changes) and under the terms of the
-[Creative Commons Attribution 3.0 Unported License](https://creativecommons.org/licenses/by/3.0/)
+[Creative Commons Attribution 3.0 Unported License](docs/LICENSE)
 (if it includes documentation changes).


@ -206,7 +209,7 @@ includes code changes) and under the terms of the

 ### HTML

-[Adhere to the Code Guide.](https://codeguide.co/#html)
+[Adhere to the Code Guide.](http://codeguide.co/#html)

 - Use tags and elements appropriate for an HTML5 doctype (e.g., self-closing tags).
 - Use CDNs and HTTPS for third-party JS when possible. We don't use protocol-relative URLs in this case because they break when viewing the page locally via `file://`.
@ -214,10 +217,10 @@ includes code changes) and under the terms of the

 ### CSS

-[Adhere to the Code Guide.](https://codeguide.co/#css)
+[Adhere to the Code Guide.](http://codeguide.co/#css)

 - When feasible, default color palettes should comply with [WCAG color contrast guidelines](https://www.w3.org/TR/WCAG20/#visual-audio-contrast).
- Except in rare cases, don't remove default `:focus` styles (via e.g. `outline: none;`) without providing alternative styles. See [this A11Y Project post](https://www.a11yproject.com/posts/2013-01-25-never-remove-css-outlines/) for more details.
+- Except in rare cases, don't remove default `:focus` styles (via e.g. `outline: none;`) without providing alternative styles. See [this A11Y Project post](https://a11yproject.com/posts/never-remove-css-outlines/) for more details.

 ### JS

@ -225,6 +228,7 @@ includes code changes) and under the terms of the
 - 2 spaces (no tabs)
 - strict mode
 - "Attractive"
+- Don't use [jQuery event alias convenience methods](https://github.com/jquery/jquery/blob/master/src/event/alias.js) (such as `$().focus()`). Instead, use [`$().trigger(eventType, ...)`](https://api.jquery.com/trigger/) or [`$().on(eventType, ...)`](https://api.jquery.com/on/), depending on whether you're firing an event or listening for an event. (For example, `$().trigger('focus')` or `$().on('focus', function (event) { /* handle focus event */ })`) We do this to be compatible with custom builds of jQuery where the event aliases module has been excluded.

 ### Checking coding style

@ -233,7 +237,7 @@ Run `npm run test` before committing to ensure your changes follow our coding st

 ## License

-By contributing your code, you agree to license your contribution under the [MIT License](../LICENSE).
-By contributing to the documentation, you agree to license your contribution under the [Creative Commons Attribution 3.0 Unported License](https://creativecommons.org/licenses/by/3.0/).
+By contributing your code, you agree to license your contribution under the [MIT License](LICENSE).
+By contributing to the documentation, you agree to license your contribution under the [Creative Commons Attribution 3.0 Unported License](docs/LICENSE).

 Prior to v3.1.0, Bootstrap's code was released under the Apache License v2.0.
--- a/.github/FUNDING.yml
+++ b/.github/FUNDING.yml
@ -1,3 +0,0 @@
-# These are supported funding model platforms
-
-open_collective: bootstrap
--- a/.github/ISSUE_TEMPLATE/bug.md
+++ b/.github/ISSUE_TEMPLATE/bug.md
@ -0,0 +1,11 @@
+Before opening:
+
+- [Search for duplicate or closed issues](https://github.com/twbs/bootstrap/issues?utf8=%E2%9C%93&q=is%3Aissue)
+- [Validate](https://html5.validator.nu/) and [lint](https://github.com/twbs/bootlint#in-the-browser) any HTML to avoid common problems
+- Read the [contributing guidelines](https://github.com/twbs/bootstrap/blob/master/CONTRIBUTING.md)
+
+Bug reports must include:
+
+- Operating system and version (Windows, macOS, Android, iOS, Win10 Mobile)
+- Browser and version (Chrome, Firefox, Safari, IE, MS Edge, Opera 15+, Android Browser)
+- [Reduced test case](https://css-tricks.com/reduced-test-cases/) and suggested fix using [CodePen](https://codepen.io/) or [JS Bin](https://jsbin.com/)
--- a/.github/ISSUE_TEMPLATE/bug_report.md
+++ b/.github/ISSUE_TEMPLATE/bug_report.md
@ -1,20 +1,17 @@
 ---
 name: Bug report
 about: Tell us about a bug you may have identified in Bootstrap.
-title: ''
-labels: ''
-assignees: ''

 ---

 Before opening:

 - [Search for duplicate or closed issues](https://github.com/twbs/bootstrap/issues?utf8=%E2%9C%93&q=is%3Aissue)
- [Validate](https://html5.validator.nu/) any HTML to avoid common problems
- Read the [contributing guidelines](https://github.com/twbs/bootstrap/blob/main/.github/CONTRIBUTING.md)
+- [Validate](https://html5.validator.nu/) and [lint](https://github.com/twbs/bootlint#in-the-browser) any HTML to avoid common problems
+- Read the [contributing guidelines](https://github.com/twbs/bootstrap/blob/master/CONTRIBUTING.md)

 Bug reports must include:

- Operating system and version (Windows, macOS, Android, iOS)
- Browser and version (Chrome, Firefox, Safari, Microsoft Edge, Opera, Android Browser)
- A [reduced test case](https://css-tricks.com/reduced-test-cases/) or suggested fix using [CodePen](https://codepen.io/) or [JS Bin](https://jsbin.com/)
+- Operating system and version (Windows, macOS, Android, iOS, Win10 Mobile)
+- Browser and version (Chrome, Firefox, Safari, IE, MS Edge, Opera 15+, Android Browser)
+- [Reduced test case](https://css-tricks.com/reduced-test-cases/) and suggested fix using [CodePen](https://codepen.io/) or [JS Bin](https://jsbin.com/)
--- a/.github/ISSUE_TEMPLATE/config.yml
+++ b/.github/ISSUE_TEMPLATE/config.yml
@ -1,4 +0,0 @@
-contact_links:
-  - name: Ask a question
-    url: https://github.com/twbs/bootstrap/discussions/new
-    about: Ask and discuss questions with other Bootstrap community members
--- a/.github/ISSUE_TEMPLATE/feature.md
+++ b/.github/ISSUE_TEMPLATE/feature.md
@ -0,0 +1,9 @@
+Before opening:
+
+- [Search for duplicate or closed issues](https://github.com/twbs/bootstrap/issues?utf8=%E2%9C%93&q=is%3Aissue)
+- Read the [contributing guidelines](https://github.com/twbs/bootstrap/blob/master/CONTRIBUTING.md)
+
+Feature requests must include:
+
+- As much detail as possible for what we should add and why it's important to Bootstrap
+- Relevant links to prior art, screenshots, or live demos whenever possible
--- a/.github/ISSUE_TEMPLATE/feature_request.md
+++ b/.github/ISSUE_TEMPLATE/feature_request.md
@ -1,16 +1,13 @@
 ---
 name: Feature request
 about: Suggest an idea for a new feature in Bootstrap.
-title: ''
-labels: feature
-assignees: ''

 ---

 Before opening:

 - [Search for duplicate or closed issues](https://github.com/twbs/bootstrap/issues?utf8=%E2%9C%93&q=is%3Aissue)
- Read the [contributing guidelines](https://github.com/twbs/bootstrap/blob/main/.github/CONTRIBUTING.md)
+- Read the [contributing guidelines](https://github.com/twbs/bootstrap/blob/master/CONTRIBUTING.md)

 Feature requests must include:

--- a/.github/SUPPORT.md
+++ b/.github/SUPPORT.md
@ -8,4 +8,4 @@ For general troubleshooting or help getting started:

 - Join [the official Slack room](https://bootstrap-slack.herokuapp.com/).
 - Chat with fellow Bootstrappers in IRC. On the `irc.freenode.net` server, in the `##bootstrap` channel.
- Ask and explore Stack Overflow with the [`bootstrap-5`](https://stackoverflow.com/questions/tagged/bootstrap-5) tag.
+- Ask and explore Stack Overflow with the [`bootstrap-4`](https://stackoverflow.com/questions/tagged/bootstrap-4) tag.
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@ -1,24 +0,0 @@
-version: 2
-updates:
-  - package-ecosystem: npm
-    directory: "/"
-    schedule:
-      interval: weekly
-      day: tuesday
-      time: "12:00"
-      timezone: Europe/Athens
-    open-pull-requests-limit: 10
-    reviewers:
-      - XhmikosR
-    labels:
-      - dependencies
-      - v5
-    versioning-strategy: increase
-    rebase-strategy: disabled
-  - package-ecosystem: "github-actions"
-    directory: "/"
-    schedule:
-      interval: weekly
-      day: tuesday
-      time: "12:00"
-      timezone: Europe/Athens
--- a/.github/release-drafter.yml
+++ b/.github/release-drafter.yml
@ -1,54 +0,0 @@
-name-template: 'v$NEXT_MAJOR_VERSION'
-tag-template: 'v$NEXT_MAJOR_VERSION'
-prerelease: true
-exclude-labels:
-  - 'skip-changelog'
-categories:
-  - title: '❗ Breaking Changes'
-    labels:
-      - 'breaking-change'
-  - title: '🚀 Features'
-    labels:
-      - 'new-feature'
-      - 'feature'
-      - 'enhancement'
-  - title: '🐛 Bug fixes'
-    labels:
-      - 'fix'
-      - 'bugfix'
-      - 'bug'
-  - title: '⚡ Performance Improvements'
-    labels:
-      - 'performance'
-  - title: '🎨 CSS'
-    labels:
-      - 'css'
-  - title: '☕️ JavaScript'
-    labels:
-      - 'js'
-  - title: '📖 Docs'
-    labels:
-      - 'docs'
-  - title: '🌎 Accessibility'
-    labels:
-      - 'accessibility'
-  - title: '🔧 Utility API'
-    labels:
-      - 'utility API'
-      - 'utilities'
-  - title: '🏭 Tests'
-    labels:
-      - 'tests'
-  - title: '🧰 Misc'
-    labels:
-      - 'build'
-      - 'meta'
-      - 'chore'
-      - 'CI'
-  - title: '📦 Dependencies'
-    labels:
-      - 'dependencies'
-change-template: '- #$NUMBER: $TITLE'
-template: |
-  ## Changes
-  $CHANGES
--- a/.github/workflows/browserstack.yml
+++ b/.github/workflows/browserstack.yml
@ -1,44 +0,0 @@
-name: BrowserStack
-
-on:
-  push:
-
-env:
-  FORCE_COLOR: 2
-  NODE: 14
-
-jobs:
-  browserstack:
-    runs-on: ubuntu-latest
-    if: github.repository == 'twbs/bootstrap' && (!contains(github.event.commits[0].message, '[ci skip]') && !contains(github.event.commits[0].message, '[skip ci]'))
-    timeout-minutes: 30
-
-    steps:
-      - name: Clone repository
-        uses: actions/checkout@v2
-
-      - name: Set up Node.js
-        uses: actions/setup-node@v2
-        with:
-          node-version: "${{ env.NODE }}"
-
-      - name: Set up npm cache
-        uses: actions/cache@v2
-        with:
-          path: ~/.npm
-          key: ${{ runner.os }}-node-v${{ env.NODE }}-${{ hashFiles('package.json') }}-${{ hashFiles('package-lock.json') }}
-          restore-keys: |
-            ${{ runner.os }}-node-v${{ env.NODE }}-${{ hashFiles('package.json') }}-${{ hashFiles('package-lock.json') }}
-            ${{ runner.os }}-node-v${{ env.NODE }}-
-
-      - name: Install npm dependencies
-        run: npm ci
-
-      - name: Run dist
-        run: npm run dist
-
-      - name: Run BrowserStack tests
-        run: npm run js-test-cloud
-        env:
-          BROWSER_STACK_ACCESS_KEY: "${{ secrets.BROWSER_STACK_ACCESS_KEY }}"
-          BROWSER_STACK_USERNAME: "${{ secrets.BROWSER_STACK_USERNAME }}"
--- a/.github/workflows/bundlewatch.yml
+++ b/.github/workflows/bundlewatch.yml
@ -1,45 +0,0 @@
-name: Bundlewatch
-
-on:
-  push:
-    branches-ignore:
-      - "dependabot/**"
-  pull_request:
-
-env:
-  FORCE_COLOR: 2
-  NODE: 14
-
-jobs:
-  bundlewatch:
-    runs-on: ubuntu-latest
-
-    steps:
-      - name: Clone repository
-        uses: actions/checkout@v2
-
-      - name: Set up Node.js
-        uses: actions/setup-node@v2
-        with:
-          node-version: "${{ env.NODE }}"
-
-      - name: Set up npm cache
-        uses: actions/cache@v2
-        with:
-          path: ~/.npm
-          key: ${{ runner.os }}-node-v${{ env.NODE }}-${{ hashFiles('package.json') }}-${{ hashFiles('package-lock.json') }}
-          restore-keys: |
-            ${{ runner.os }}-node-v${{ env.NODE }}-${{ hashFiles('package.json') }}-${{ hashFiles('package-lock.json') }}
-            ${{ runner.os }}-node-v${{ env.NODE }}-
-
-      - name: Install npm dependencies
-        run: npm ci
-
-      - name: Run dist
-        run: npm run dist
-
-      - name: Run bundlewatch
-        run: npm run bundlewatch
-        env:
-          BUNDLEWATCH_GITHUB_TOKEN: "${{ secrets.BUNDLEWATCH_GITHUB_TOKEN }}"
-          CI_BRANCH_BASE: main
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@ -1,36 +0,0 @@
-name: "CodeQL"
-
-on:
-  push:
-    branches:
-      - main
-      - v4-dev
-      - "!dependabot/**"
-  pull_request:
-    # The branches below must be a subset of the branches above
-    branches:
-      - main
-      - v4-dev
-  schedule:
-    - cron: "0 2 * * 5"
-
-jobs:
-  analyze:
-    name: Analyze
-    runs-on: ubuntu-latest
-
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v2
-
-      # Initializes the CodeQL tools for scanning.
-      - name: Initialize CodeQL
-        uses: github/codeql-action/init@v1
-        with:
-          languages: "javascript"
-
-      - name: Autobuild
-        uses: github/codeql-action/autobuild@v1
-
-      - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@v1
--- a/.github/workflows/css.yml
+++ b/.github/workflows/css.yml
@ -1,39 +0,0 @@
-name: CSS
-
-on:
-  push:
-    branches-ignore:
-      - "dependabot/**"
-  pull_request:
-
-env:
-  FORCE_COLOR: 2
-  NODE: 14
-
-jobs:
-  css:
-    runs-on: ubuntu-latest
-
-    steps:
-      - name: Clone repository
-        uses: actions/checkout@v2
-
-      - name: Set up Node.js
-        uses: actions/setup-node@v2
-        with:
-          node-version: "${{ env.NODE }}"
-
-      - name: Set up npm cache
-        uses: actions/cache@v2
-        with:
-          path: ~/.npm
-          key: ${{ runner.os }}-node-v${{ env.NODE }}-${{ hashFiles('package.json') }}-${{ hashFiles('package-lock.json') }}
-          restore-keys: |
-            ${{ runner.os }}-node-v${{ env.NODE }}-${{ hashFiles('package.json') }}-${{ hashFiles('package-lock.json') }}
-            ${{ runner.os }}-node-v${{ env.NODE }}-
-
-      - name: Install npm dependencies
-        run: npm ci
-
-      - name: Build CSS
-        run: npm run css
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@ -1,41 +0,0 @@
-name: Docs
-
-on:
-  push:
-    branches-ignore:
-      - "dependabot/**"
-  pull_request:
-
-env:
-  FORCE_COLOR: 2
-  NODE: 14
-
-jobs:
-  docs:
-    runs-on: ubuntu-latest
-
-    steps:
-      - name: Clone repository
-        uses: actions/checkout@v2
-
-      - name: Set up Node.js
-        uses: actions/setup-node@v2
-        with:
-          node-version: "${{ env.NODE }}"
-
-      - run: java -version
-
-      - name: Set up npm cache
-        uses: actions/cache@v2
-        with:
-          path: ~/.npm
-          key: ${{ runner.os }}-node-v${{ env.NODE }}-${{ hashFiles('package.json') }}-${{ hashFiles('package-lock.json') }}
-          restore-keys: |
-            ${{ runner.os }}-node-v${{ env.NODE }}-${{ hashFiles('package.json') }}-${{ hashFiles('package-lock.json') }}
-            ${{ runner.os }}-node-v${{ env.NODE }}-
-
-      - name: Install npm dependencies
-        run: npm ci
-
-      - name: Test docs
-        run: npm run docs
--- a/.github/workflows/js.yml
+++ b/.github/workflows/js.yml
@ -1,54 +0,0 @@
-name: JS Tests
-
-on:
-  push:
-    branches-ignore:
-      - "dependabot/**"
-  pull_request:
-
-env:
-  FORCE_COLOR: 2
-
-jobs:
-  run:
-    name: Node ${{ matrix.node }}
-    runs-on: ubuntu-latest
-
-    strategy:
-      fail-fast: false
-      matrix:
-        node: [10, 12, 14]
-
-    steps:
-      - name: Clone repository
-        uses: actions/checkout@v2
-
-      - name: Set up Node.js
-        uses: actions/setup-node@v2
-        with:
-          node-version: ${{ matrix.node }}
-
-      - name: Set up npm cache
-        uses: actions/cache@v2
-        with:
-          path: ~/.npm
-          key: ${{ runner.os }}-node-v${{ matrix.node }}-${{ hashFiles('package.json') }}-${{ hashFiles('package-lock.json') }}}
-          restore-keys: |
-            ${{ runner.os }}-node-v${{ matrix.node }}-${{ hashFiles('package.json') }}-${{ hashFiles('package-lock.json') }}
-            ${{ runner.os }}-node-v${{ matrix.node }}-
-
-      - name: Install npm dependencies
-        run: npm ci
-
-      - name: Run dist
-        run: npm run js
-
-      - name: Run JS tests
-        run: npm run js-test
-
-      - name: Run Coveralls
-        uses: coverallsapp/github-action@master
-        if: matrix.node == 14
-        with:
-          github-token: "${{ secrets.GITHUB_TOKEN }}"
-          path-to-lcov: "./js/coverage/lcov.info"
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@ -1,39 +0,0 @@
-name: Lint
-
-on:
-  push:
-    branches-ignore:
-      - "dependabot/**"
-  pull_request:
-
-env:
-  FORCE_COLOR: 2
-  NODE: 14
-
-jobs:
-  lint:
-    runs-on: ubuntu-latest
-
-    steps:
-      - name: Clone repository
-        uses: actions/checkout@v2
-
-      - name: Set up Node.js
-        uses: actions/setup-node@v2
-        with:
-          node-version: "${{ env.NODE }}"
-
-      - name: Set up npm cache
-        uses: actions/cache@v2
-        with:
-          path: ~/.npm
-          key: ${{ runner.os }}-node-v${{ env.NODE }}-${{ hashFiles('package.json') }}-${{ hashFiles('package-lock.json') }}
-          restore-keys: |
-            ${{ runner.os }}-node-v${{ env.NODE }}-${{ hashFiles('package.json') }}-${{ hashFiles('package-lock.json') }}
-            ${{ runner.os }}-node-v${{ env.NODE }}-
-
-      - name: Install npm dependencies
-        run: npm ci
-
-      - name: Lint
-        run: npm run lint
--- a/.github/workflows/node-sass.yml
+++ b/.github/workflows/node-sass.yml
@ -1,30 +0,0 @@
-name: CSS (node-sass)
-
-on:
-  push:
-    branches-ignore:
-      - "dependabot/**"
-  pull_request:
-
-env:
-  FORCE_COLOR: 2
-  NODE: 14
-
-jobs:
-  css:
-    runs-on: ubuntu-latest
-
-    steps:
-      - name: Clone repository
-        uses: actions/checkout@v2
-
-      - name: Set up Node.js
-        uses: actions/setup-node@v2
-        with:
-          node-version: "${{ env.NODE }}"
-
-      - name: Build CSS with node-sass
-        run: |
-          npx --package node-sass@latest node-sass --version
-          npx --package node-sass@latest node-sass --output-style expanded --source-map true --source-map-contents true --precision 6 scss/ -o dist-sass/css/
-          ls -Al dist-sass/css
--- a/.github/workflows/release-notes.yml
+++ b/.github/workflows/release-notes.yml
@ -1,14 +0,0 @@
-name: Release notes
-
-on:
-  push:
-    branches:
-      - main
-
-jobs:
-  update_release_draft:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: release-drafter/release-drafter@v5
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
--- a/.gitignore
+++ b/.gitignore
@ -1,7 +1,12 @@
 # Ignore docs files
 /_gh_pages/
-# Hugo resources folder
-/resources/
+/site/.jekyll-metadata
+/site/docs/**/dist/
+
+# Ignore ruby/bundler files
+/.bundle/
+/vendor/
+/.ruby-version

 # Numerous always-ignore extensions
 *.diff
@ -28,9 +33,6 @@
 *.sublime-workspace
 nbproject
 Thumbs.db
-/.vscode/
-# Local Netlify folder
-.netlify

 # Komodo
 .komodotools
--- a/.stylelintignore
+++ b/.stylelintignore
@ -2,4 +2,3 @@
 **/dist/
 **/vendor/
 /_gh_pages/
-/js/coverage/
--- a/.stylelintrc
+++ b/.stylelintrc
@ -3,29 +3,13 @@
    "stylelint-config-twbs-bootstrap/scss"
  ],
  "rules": {
-    "declaration-property-value-disallowed-list": {
-      "border": "none",
-      "outline": "none"
-    },
-    "function-disallowed-list": [
-      "calc",
-      "lighten",
-      "darken"
-    ],
-    "property-disallowed-list": [
+    "property-blacklist": [
      "border-radius",
      "border-top-left-radius",
      "border-top-right-radius",
      "border-bottom-right-radius",
      "border-bottom-left-radius",
      "transition"
-    ],
-    "scss/dollar-variable-default": [
-      true,
-      {
-        "ignore": "local"
-      }
-    ],
-    "scss/selector-no-union-class-name": true
+    ]
  }
 }
--- a/.travis.yml
+++ b/.travis.yml
@ -0,0 +1,25 @@
+addons:
+  chrome: stable
+language: node_js
+git:
+  depth: 3
+node_js:
+  - "6"
+  - "8"
+install:
+  - bundle install --deployment --jobs=3 --retry=3 --clean
+  - npm install
+before_script:
+  - google-chrome-stable --product-version
+script:
+  - npm test || travis_terminate 1
+  - if [[ "$TRAVIS_NODE_VERSION" = "8" ]]; then npm run check-broken-links; fi
+  - if [[ "$TRAVIS_NODE_VERSION" = "8" && "$TRAVIS_EVENT_TYPE" = "push" && ! `git log --format=%B --no-merges -n 1 | grep '\[skip browser\]'` ]]; then npm run js-test-cloud; fi
+after_success:
+  - if [[ "$TRAVIS_NODE_VERSION" = "8" ]]; then npm run coveralls; fi
+cache:
+  directories:
+    - node_modules
+    - vendor/bundle
+notifications:
+  email: false
--- a/site/static/CNAME
+++ b/site/static/CNAME
--- a/CODE_OF_CONDUCT.md
+++ b/CODE_OF_CONDUCT.md
@ -8,19 +8,19 @@ In the interest of fostering an open and welcoming environment, we as contributo

 Examples of behavior that contributes to creating a positive environment include:

- Using welcoming and inclusive language
- Being respectful of differing viewpoints and experiences
- Gracefully accepting constructive criticism
- Focusing on what is best for the community
- Showing empathy towards other community members
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members

 Examples of unacceptable behavior by participants include:

- The use of sexualized language or imagery and unwelcome sexual attention or advances
- Trolling, insulting/derogatory comments, and personal or political attacks
- Public or private harassment
- Publishing others' private information, such as a physical or electronic address, without explicit permission
- Other conduct which could reasonably be considered inappropriate in a professional setting
+* The use of sexualized language or imagery and unwelcome sexual attention or advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a professional setting

 ## Our Responsibilities

@ -40,4 +40,7 @@ Project maintainers who do not follow or enforce the Code of Conduct in good fai

 ## Attribution

-This Code of Conduct is adapted from the [Contributor Covenant](https://www.contributor-covenant.org/), version 1.4, available at <https://www.contributor-covenant.org/version/1/4/code-of-conduct/>
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4, available at [https://www.contributor-covenant.org/version/1/4/code-of-conduct.html][version]
+
+[homepage]: https://www.contributor-covenant.org/
+[version]: https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
--- a/9
+++ b/9
@ -0,0 +1,9 @@
+source 'https://rubygems.org'
+
+group :development, :test do
+  gem 'jekyll', '~> 3.8.5'
+  gem 'jekyll-redirect-from', '~> 0.14.0'
+  gem 'jekyll-sitemap', '~> 1.2.0'
+  gem 'jekyll-toc', '~> 0.9.1'
+  gem 'wdm', '~> 0.1.1', :install_if => Gem.win_platform?
+end
--- a/Gemfile.lock
+++ b/Gemfile.lock
@ -0,0 +1,82 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    addressable (2.6.0)
+      public_suffix (>= 2.0.2, < 4.0)
+    colorator (1.1.0)
+    concurrent-ruby (1.1.4)
+    em-websocket (0.5.1)
+      eventmachine (>= 0.12.9)
+      http_parser.rb (~> 0.6.0)
+    eventmachine (1.2.7)
+    eventmachine (1.2.7-x64-mingw32)
+    ffi (1.10.0)
+    ffi (1.10.0-x64-mingw32)
+    forwardable-extended (2.6.0)
+    http_parser.rb (0.6.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
+    jekyll (3.8.5)
+      addressable (~> 2.4)
+      colorator (~> 1.0)
+      em-websocket (~> 0.5)
+      i18n (~> 0.7)
+      jekyll-sass-converter (~> 1.0)
+      jekyll-watch (~> 2.0)
+      kramdown (~> 1.14)
+      liquid (~> 4.0)
+      mercenary (~> 0.3.3)
+      pathutil (~> 0.9)
+      rouge (>= 1.7, < 4)
+      safe_yaml (~> 1.0)
+    jekyll-redirect-from (0.14.0)
+      jekyll (~> 3.3)
+    jekyll-sass-converter (1.5.2)
+      sass (~> 3.4)
+    jekyll-sitemap (1.2.0)
+      jekyll (~> 3.3)
+    jekyll-toc (0.9.1)
+      nokogiri (~> 1.8)
+    jekyll-watch (2.1.2)
+      listen (~> 3.0)
+    kramdown (1.17.0)
+    liquid (4.0.1)
+    listen (3.1.5)
+      rb-fsevent (~> 0.9, >= 0.9.4)
+      rb-inotify (~> 0.9, >= 0.9.7)
+      ruby_dep (~> 1.2)
+    mercenary (0.3.6)
+    mini_portile2 (2.4.0)
+    nokogiri (1.10.1)
+      mini_portile2 (~> 2.4.0)
+    nokogiri (1.10.1-x64-mingw32)
+      mini_portile2 (~> 2.4.0)
+    pathutil (0.16.2)
+      forwardable-extended (~> 2.6)
+    public_suffix (3.0.3)
+    rb-fsevent (0.10.3)
+    rb-inotify (0.10.0)
+      ffi (~> 1.0)
+    rouge (3.3.0)
+    ruby_dep (1.5.0)
+    safe_yaml (1.0.4)
+    sass (3.7.3)
+      sass-listen (~> 4.0.0)
+    sass-listen (4.0.0)
+      rb-fsevent (~> 0.9, >= 0.9.4)
+      rb-inotify (~> 0.9, >= 0.9.7)
+    wdm (0.1.1)
+
+PLATFORMS
+  ruby
+  x64-mingw32
+
+DEPENDENCIES
+  jekyll (~> 3.8.5)
+  jekyll-redirect-from (~> 0.14.0)
+  jekyll-sitemap (~> 1.2.0)
+  jekyll-toc (~> 0.9.1)
+  wdm (~> 0.1.1)
+
+BUNDLED WITH
+   1.17.3
--- a/4
+++ b/4
@ -1,7 +1,7 @@
 The MIT License (MIT)

-Copyright (c) 2011-2021 Twitter, Inc.
-Copyright (c) 2011-2021 The Bootstrap Authors
+Copyright (c) 2011-2019 Twitter, Inc.
+Copyright (c) 2011-2019 The Bootstrap Authors

 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
--- a/README.md
+++ b/README.md
@ -1,6 +1,6 @@
 <p align="center">
  <a href="https://getbootstrap.com/">
-    <img src="https://getbootstrap.com/docs/5.0/assets/brand/bootstrap-logo-shadow.png" alt="Bootstrap logo" width="200" height="165">
+    <img src="https://getbootstrap.com/docs/4.3/assets/brand/bootstrap-solid.svg" alt="Bootstrap logo" width="72" height="72">
  </a>
 </p>

@ -9,12 +9,12 @@
 <p align="center">
  Sleek, intuitive, and powerful front-end framework for faster and easier web development.
  <br>
-  <a href="https://getbootstrap.com/docs/5.0/"><strong>Explore Bootstrap docs »</strong></a>
+  <a href="https://getbootstrap.com/docs/4.3/"><strong>Explore Bootstrap docs »</strong></a>
  <br>
  <br>
-  <a href="https://github.com/twbs/bootstrap/issues/new?template=bug_report.md">Report bug</a>
+  <a href="https://github.com/twbs/bootstrap/issues/new?template=bug.md">Report bug</a>
  ·
-  <a href="https://github.com/twbs/bootstrap/issues/new?template=feature_request.md">Request feature</a>
+  <a href="https://github.com/twbs/bootstrap/issues/new?template=feature.md&labels=feature">Request feature</a>
  ·
  <a href="https://themes.getbootstrap.com/">Themes</a>
  ·
@ -22,11 +22,6 @@
 </p>


-## Bootstrap 4
-
-Our default branch is for development of our upcoming Bootstrap 5 release. Head to the [`v4-dev` branch](https://github.com/twbs/bootstrap/tree/v4-dev) to view the readme, documentation, and source code for Bootstrap 4.
-
-
 ## Table of contents

 - [Quick start](#quick-start)
@ -46,35 +41,33 @@ Our default branch is for development of our upcoming Bootstrap 5 release. Head

 Several quick start options are available:

- [Download the latest release](https://github.com/twbs/bootstrap/archive/v5.0.0-beta1.zip)
+- [Download the latest release.](https://github.com/twbs/bootstrap/archive/v4.3.1.zip)
 - Clone the repo: `git clone https://github.com/twbs/bootstrap.git`
- Install with [npm](https://www.npmjs.com/): `npm install bootstrap@next`
- Install with [yarn](https://yarnpkg.com/): `yarn add bootstrap@next`
- Install with [Composer](https://getcomposer.org/): `composer require twbs/bootstrap:5.0.0-beta1`
+- Install with [npm](https://www.npmjs.com/): `npm install bootstrap`
+- Install with [yarn](https://yarnpkg.com/): `yarn add bootstrap@4.3.1`
+- Install with [Composer](https://getcomposer.org/): `composer require twbs/bootstrap:4.3.1`
 - Install with [NuGet](https://www.nuget.org/): CSS: `Install-Package bootstrap` Sass: `Install-Package bootstrap.sass`

-Read the [Getting started page](https://getbootstrap.com/docs/5.0/getting-started/introduction/) for information on the framework contents, templates and examples, and more.
+Read the [Getting started page](https://getbootstrap.com/docs/4.3/getting-started/introduction/) for information on the framework contents, templates and examples, and more.


 ## Status

 [![Slack](https://bootstrap-slack.herokuapp.com/badge.svg)](https://bootstrap-slack.herokuapp.com/)
-[![Build Status](https://github.com/twbs/bootstrap/workflows/JS%20Tests/badge.svg?branch=main)](https://github.com/twbs/bootstrap/actions?query=workflow%3AJS+Tests+branch%3Amain)
-[![npm version](https://img.shields.io/npm/v/bootstrap)](https://www.npmjs.com/package/bootstrap)
-[![Gem version](https://img.shields.io/gem/v/bootstrap)](https://rubygems.org/gems/bootstrap)
-[![Meteor Atmosphere](https://img.shields.io/badge/meteor-twbs%3Abootstrap-blue)](https://atmospherejs.com/twbs/bootstrap)
-[![Packagist Prerelease](https://img.shields.io/packagist/vpre/twbs/bootstrap)](https://packagist.org/packages/twbs/bootstrap)
-[![NuGet](https://img.shields.io/nuget/vpre/bootstrap)](https://www.nuget.org/packages/bootstrap/absoluteLatest)
-[![peerDependencies Status](https://img.shields.io/david/peer/twbs/bootstrap)](https://david-dm.org/twbs/bootstrap?type=peer)
-[![devDependency Status](https://img.shields.io/david/dev/twbs/bootstrap)](https://david-dm.org/twbs/bootstrap?type=dev)
-[![Coverage Status](https://img.shields.io/coveralls/github/twbs/bootstrap/main)](https://coveralls.io/github/twbs/bootstrap?branch=main)
-[![CSS gzip size](https://img.badgesize.io/twbs/bootstrap/main/dist/css/bootstrap.min.css?compression=gzip&label=CSS%20gzip%20size)](https://github.com/twbs/bootstrap/blob/main/dist/css/bootstrap.min.css)
-[![CSS Brotli size](https://img.badgesize.io/twbs/bootstrap/main/dist/css/bootstrap.min.css?compression=brotli&label=CSS%20Brotli%20size)](https://github.com/twbs/bootstrap/blob/main/dist/css/bootstrap.min.css)
-[![JS gzip size](https://img.badgesize.io/twbs/bootstrap/main/dist/js/bootstrap.min.js?compression=gzip&label=JS%20gzip%20size)](https://github.com/twbs/bootstrap/blob/main/dist/js/bootstrap.min.js)
-[![JS Brotli size](https://img.badgesize.io/twbs/bootstrap/main/dist/js/bootstrap.min.js?compression=brotli&label=JS%20Brotli%20size)](https://github.com/twbs/bootstrap/blob/main/dist/js/bootstrap.min.js)
+[![Build Status](https://img.shields.io/travis/twbs/bootstrap/v4-dev.svg)](https://travis-ci.org/twbs/bootstrap)
+[![npm version](https://img.shields.io/npm/v/bootstrap.svg)](https://www.npmjs.com/package/bootstrap)
+[![Gem version](https://img.shields.io/gem/v/bootstrap.svg)](https://rubygems.org/gems/bootstrap)
+[![Meteor Atmosphere](https://img.shields.io/badge/meteor-twbs%3Abootstrap-blue.svg)](https://atmospherejs.com/twbs/bootstrap)
+[![Packagist Prerelease](https://img.shields.io/packagist/vpre/twbs/bootstrap.svg)](https://packagist.org/packages/twbs/bootstrap)
+[![NuGet](https://img.shields.io/nuget/vpre/bootstrap.svg)](https://www.nuget.org/packages/bootstrap/absoluteLatest)
+[![peerDependencies Status](https://img.shields.io/david/peer/twbs/bootstrap.svg)](https://david-dm.org/twbs/bootstrap?type=peer)
+[![devDependency Status](https://img.shields.io/david/dev/twbs/bootstrap.svg)](https://david-dm.org/twbs/bootstrap?type=dev)
+[![Coverage Status](https://img.shields.io/coveralls/github/twbs/bootstrap/v4-dev.svg)](https://coveralls.io/github/twbs/bootstrap?branch=v4-dev)
+[![CSS gzip size](https://img.badgesize.io/twbs/bootstrap/v4-dev/dist/css/bootstrap.min.css?compression=gzip&label=CSS+gzip+size)](https://github.com/twbs/bootstrap/tree/v4-dev/dist/css/bootstrap.min.css)
+[![JS gzip size](https://img.badgesize.io/twbs/bootstrap/v4-dev/dist/js/bootstrap.min.js?compression=gzip&label=JS+gzip+size)](https://github.com/twbs/bootstrap/tree/v4-dev/dist/js/bootstrap.min.js)
 [![BrowserStack Status](https://www.browserstack.com/automate/badge.svg?badge_key=SkxZcStBeExEdVJqQ2hWYnlWckpkNmNEY213SFp6WHFETWk2bGFuY3pCbz0tLXhqbHJsVlZhQnRBdEpod3NLSDMzaHc9PQ==--3d0b75245708616eb93113221beece33e680b229)](https://www.browserstack.com/automate/public-build/SkxZcStBeExEdVJqQ2hWYnlWckpkNmNEY213SFp6WHFETWk2bGFuY3pCbz0tLXhqbHJsVlZhQnRBdEpod3NLSDMzaHc9PQ==--3d0b75245708616eb93113221beece33e680b229)
-[![Backers on Open Collective](https://img.shields.io/opencollective/backers/bootstrap)](#backers)
-[![Sponsors on Open Collective](https://img.shields.io/opencollective/sponsors/bootstrap)](#sponsors)
+[![Backers on Open Collective](https://opencollective.com/bootstrap/backers/badge.svg)](#backers)
+[![Sponsors on Open Collective](https://opencollective.com/bootstrap/sponsors/badge.svg)](#sponsors)


 ## What's included
@ -83,91 +76,73 @@ Within the download you'll find the following directories and files, logically g

 ```text
 bootstrap/
-├── css/
-│   ├── bootstrap-grid.css
-│   ├── bootstrap-grid.css.map
-│   ├── bootstrap-grid.min.css
-│   ├── bootstrap-grid.min.css.map
-│   ├── bootstrap-grid.rtl.css
-│   ├── bootstrap-grid.rtl.css.map
-│   ├── bootstrap-grid.rtl.min.css
-│   ├── bootstrap-grid.rtl.min.css.map
-│   ├── bootstrap-reboot.css
-│   ├── bootstrap-reboot.css.map
-│   ├── bootstrap-reboot.min.css
-│   ├── bootstrap-reboot.min.css.map
-│   ├── bootstrap-reboot.rtl.css
-│   ├── bootstrap-reboot.rtl.css.map
-│   ├── bootstrap-reboot.rtl.min.css
-│   ├── bootstrap-reboot.rtl.min.css.map
-│   ├── bootstrap-utilities.css
-│   ├── bootstrap-utilities.css.map
-│   ├── bootstrap-utilities.min.css
-│   ├── bootstrap-utilities.min.css.map
-│   ├── bootstrap-utilities.rtl.css
-│   ├── bootstrap-utilities.rtl.css.map
-│   ├── bootstrap-utilities.rtl.min.css
-│   ├── bootstrap-utilities.rtl.min.css.map
-│   ├── bootstrap.css
-│   ├── bootstrap.css.map
-│   ├── bootstrap.min.css
-│   ├── bootstrap.min.css.map
-│   ├── bootstrap.rtl.css
-│   ├── bootstrap.rtl.css.map
-│   ├── bootstrap.rtl.min.css
-│   └── bootstrap.rtl.min.css.map
-└── js/
-    ├── bootstrap.bundle.js
-    ├── bootstrap.bundle.js.map
-    ├── bootstrap.bundle.min.js
-    ├── bootstrap.bundle.min.js.map
-    ├── bootstrap.esm.js
-    ├── bootstrap.esm.js.map
-    ├── bootstrap.esm.min.js
-    ├── bootstrap.esm.min.js.map
-    ├── bootstrap.js
-    ├── bootstrap.js.map
-    ├── bootstrap.min.js
-    └── bootstrap.min.js.map
+└── dist/
+    ├── css/
+    │   ├── bootstrap-grid.css
+    │   ├── bootstrap-grid.css.map
+    │   ├── bootstrap-grid.min.css
+    │   ├── bootstrap-grid.min.css.map
+    │   ├── bootstrap-reboot.css
+    │   ├── bootstrap-reboot.css.map
+    │   ├── bootstrap-reboot.min.css
+    │   ├── bootstrap-reboot.min.css.map
+    │   ├── bootstrap.css
+    │   ├── bootstrap.css.map
+    │   ├── bootstrap.min.css
+    │   └── bootstrap.min.css.map
+    └── js/
+        ├── bootstrap.bundle.js
+        ├── bootstrap.bundle.js.map
+        ├── bootstrap.bundle.min.js
+        ├── bootstrap.bundle.min.js.map
+        ├── bootstrap.js
+        ├── bootstrap.js.map
+        ├── bootstrap.min.js
+        └── bootstrap.min.js.map
 ```

-We provide compiled CSS and JS (`bootstrap.*`), as well as compiled and minified CSS and JS (`bootstrap.min.*`). [source maps](https://developers.google.com/web/tools/chrome-devtools/javascript/source-maps) (`bootstrap.*.map`) are available for use with certain browsers' developer tools. Bundled JS files (`bootstrap.bundle.js` and minified `bootstrap.bundle.min.js`) include [Popper](https://popper.js.org/).
+We provide compiled CSS and JS (`bootstrap.*`), as well as compiled and minified CSS and JS (`bootstrap.min.*`). [source maps](https://developers.google.com/web/tools/chrome-devtools/javascript/source-maps) (`bootstrap.*.map`) are available for use with certain browsers' developer tools. Bundled JS files (`bootstrap.bundle.js` and minified `bootstrap.bundle.min.js`) include [Popper](https://popper.js.org/), but not [jQuery](https://jquery.com/).


 ## Bugs and feature requests

-Have a bug or a feature request? Please first read the [issue guidelines](https://github.com/twbs/bootstrap/blob/main/.github/CONTRIBUTING.md#using-the-issue-tracker) and search for existing and closed issues. If your problem or idea is not addressed yet, [please open a new issue](https://github.com/twbs/bootstrap/issues/new).
+Have a bug or a feature request? Please first read the [issue guidelines](https://github.com/twbs/bootstrap/blob/master/CONTRIBUTING.md#using-the-issue-tracker) and search for existing and closed issues. If your problem or idea is not addressed yet, [please open a new issue](https://github.com/twbs/bootstrap/issues/new).


 ## Documentation

-Bootstrap's documentation, included in this repo in the root directory, is built with [Hugo](https://gohugo.io/) and publicly hosted on GitHub Pages at <https://getbootstrap.com/>. The docs may also be run locally.
+Bootstrap's documentation, included in this repo in the root directory, is built with [Jekyll](https://jekyllrb.com/) and publicly hosted on GitHub Pages at <https://getbootstrap.com/>. The docs may also be run locally.

-Documentation search is powered by [Algolia's DocSearch](https://community.algolia.com/docsearch/). Working on our search? Be sure to set `debug: true` in `site/assets/js/search.js`.
+Documentation search is powered by [Algolia's DocSearch](https://community.algolia.com/docsearch/). Working on our search? Be sure to set `debug: true` in `site/docs/4.3/assets/js/src/search.js` file.

 ### Running documentation locally

-1. Run `npm install` to install the Node.js dependencies, including Hugo (the site builder).
-2. Run `npm run test` (or a specific npm script) to rebuild distributed CSS and JavaScript files, as well as our docs assets.
-3. From the root `/bootstrap` directory, run `npm run docs-serve` in the command line.
-4. Open `http://localhost:9001/` in your browser, and voilà.
+1. Run through the [tooling setup](https://getbootstrap.com/docs/4.3/getting-started/build-tools/#tooling-setup) to install Jekyll (the site builder) and other Ruby dependencies with `bundle install`.
+2. Run `npm install` to install Node.js dependencies.
+3. Run `npm start` to compile CSS and JavaScript files, generate our docs, and watch for changes.
+4. Open `http://localhost:9001` in your browser, and voilà.

-Learn more about using Hugo by reading its [documentation](https://gohugo.io/documentation/).
+Learn more about using Jekyll by reading its [documentation](https://jekyllrb.com/docs/).

 ### Documentation for previous releases

-You can find all our previous releases docs on <https://getbootstrap.com/docs/versions/>.
+- For v2.3.2: <https://getbootstrap.com/2.3.2/>
+- For v3.3.x: <https://getbootstrap.com/docs/3.3/>
+- For v3.4.0: <https://getbootstrap.com/docs/3.4/>
+- For v4.0.x: <https://getbootstrap.com/docs/4.0/>
+- For v4.1.x: <https://getbootstrap.com/docs/4.1/>
+- For v4.2.x: <https://getbootstrap.com/docs/4.2/>

 [Previous releases](https://github.com/twbs/bootstrap/releases) and their documentation are also available for download.


 ## Contributing

-Please read through our [contributing guidelines](https://github.com/twbs/bootstrap/blob/main/.github/CONTRIBUTING.md). Included are directions for opening issues, coding standards, and notes on development.
+Please read through our [contributing guidelines](https://github.com/twbs/bootstrap/blob/master/CONTRIBUTING.md). Included are directions for opening issues, coding standards, and notes on development.

-Moreover, if your pull request contains JavaScript patches or features, you must include [relevant unit tests](https://github.com/twbs/bootstrap/tree/main/js/tests). All HTML and CSS should conform to the [Code Guide](https://github.com/mdo/code-guide), maintained by [Mark Otto](https://github.com/mdo).
+Moreover, if your pull request contains JavaScript patches or features, you must include [relevant unit tests](https://github.com/twbs/bootstrap/tree/master/js/tests). All HTML and CSS should conform to the [Code Guide](https://github.com/mdo/code-guide), maintained by [Mark Otto](https://github.com/mdo).

-Editor preferences are available in the [editor config](https://github.com/twbs/bootstrap/blob/main/.editorconfig) for easy use in common text editors. Read more and download plugins at <https://editorconfig.org/>.
+Editor preferences are available in the [editor config](https://github.com/twbs/bootstrap/blob/master/.editorconfig) for easy use in common text editors. Read more and download plugins at <https://editorconfig.org/>.


 ## Community
@ -178,7 +153,7 @@ Get updates on Bootstrap's development and chat with the project maintainers and
 - Read and subscribe to [The Official Bootstrap Blog](https://blog.getbootstrap.com/).
 - Join [the official Slack room](https://bootstrap-slack.herokuapp.com/).
 - Chat with fellow Bootstrappers in IRC. On the `irc.freenode.net` server, in the `##bootstrap` channel.
- Implementation help may be found at Stack Overflow (tagged [`bootstrap-5`](https://stackoverflow.com/questions/tagged/bootstrap-5)).
+- Implementation help may be found at Stack Overflow (tagged [`bootstrap-4`](https://stackoverflow.com/questions/tagged/bootstrap-4)).
 - Developers should use the keyword `bootstrap` on packages which modify or add to the functionality of Bootstrap when distributing through [npm](https://www.npmjs.com/browse/keyword/bootstrap) or similar delivery mechanisms for maximum discoverability.


@ -211,29 +186,29 @@ See [the Releases section of our GitHub project](https://github.com/twbs/bootstr
 Thanks to [BrowserStack](https://www.browserstack.com/) for providing the infrastructure that allows us to test in real browsers!


-## Sponsors
-
-Support this project by becoming a sponsor. Your logo will show up here with a link to your website. [[Become a sponsor](https://opencollective.com/bootstrap#sponsor)]
-
-[![OC sponsor 0](https://opencollective.com/bootstrap/sponsor/0/avatar.svg)](https://opencollective.com/bootstrap/sponsor/0/website)
-[![OC sponsor 1](https://opencollective.com/bootstrap/sponsor/1/avatar.svg)](https://opencollective.com/bootstrap/sponsor/1/website)
-[![OC sponsor 2](https://opencollective.com/bootstrap/sponsor/2/avatar.svg)](https://opencollective.com/bootstrap/sponsor/2/website)
-[![OC sponsor 3](https://opencollective.com/bootstrap/sponsor/3/avatar.svg)](https://opencollective.com/bootstrap/sponsor/3/website)
-[![OC sponsor 4](https://opencollective.com/bootstrap/sponsor/4/avatar.svg)](https://opencollective.com/bootstrap/sponsor/4/website)
-[![OC sponsor 5](https://opencollective.com/bootstrap/sponsor/5/avatar.svg)](https://opencollective.com/bootstrap/sponsor/5/website)
-[![OC sponsor 6](https://opencollective.com/bootstrap/sponsor/6/avatar.svg)](https://opencollective.com/bootstrap/sponsor/6/website)
-[![OC sponsor 7](https://opencollective.com/bootstrap/sponsor/7/avatar.svg)](https://opencollective.com/bootstrap/sponsor/7/website)
-[![OC sponsor 8](https://opencollective.com/bootstrap/sponsor/8/avatar.svg)](https://opencollective.com/bootstrap/sponsor/8/website)
-[![OC sponsor 9](https://opencollective.com/bootstrap/sponsor/9/avatar.svg)](https://opencollective.com/bootstrap/sponsor/9/website)
-
-
 ## Backers

 Thank you to all our backers! 🙏 [[Become a backer](https://opencollective.com/bootstrap#backer)]

-[![Backers](https://opencollective.com/bootstrap/backers.svg?width=890)](https://opencollective.com/bootstrap#backers)
+[![Bakers](https://opencollective.com/bootstrap/backers.svg?width=890)](https://opencollective.com/bootstrap#backers)
+
+
+## Sponsors
+
+Support this project by becoming a sponsor. Your logo will show up here with a link to your website. [[Become a sponsor](https://opencollective.com/bootstrap#sponsor)]
+
+[![](https://opencollective.com/bootstrap/sponsor/0/avatar.svg)](https://opencollective.com/bootstrap/sponsor/0/website)
+[![](https://opencollective.com/bootstrap/sponsor/1/avatar.svg)](https://opencollective.com/bootstrap/sponsor/1/website)
+[![](https://opencollective.com/bootstrap/sponsor/2/avatar.svg)](https://opencollective.com/bootstrap/sponsor/2/website)
+[![](https://opencollective.com/bootstrap/sponsor/3/avatar.svg)](https://opencollective.com/bootstrap/sponsor/3/website)
+[![](https://opencollective.com/bootstrap/sponsor/4/avatar.svg)](https://opencollective.com/bootstrap/sponsor/4/website)
+[![](https://opencollective.com/bootstrap/sponsor/5/avatar.svg)](https://opencollective.com/bootstrap/sponsor/5/website)
+[![](https://opencollective.com/bootstrap/sponsor/6/avatar.svg)](https://opencollective.com/bootstrap/sponsor/6/website)
+[![](https://opencollective.com/bootstrap/sponsor/7/avatar.svg)](https://opencollective.com/bootstrap/sponsor/7/website)
+[![](https://opencollective.com/bootstrap/sponsor/8/avatar.svg)](https://opencollective.com/bootstrap/sponsor/8/website)
+[![](https://opencollective.com/bootstrap/sponsor/9/avatar.svg)](https://opencollective.com/bootstrap/sponsor/9/website)


 ## Copyright and license

-Code and documentation copyright 2011–2021 the [Bootstrap Authors](https://github.com/twbs/bootstrap/graphs/contributors) and [Twitter, Inc.](https://twitter.com) Code released under the [MIT License](https://github.com/twbs/bootstrap/blob/main/LICENSE). Docs released under [Creative Commons](https://creativecommons.org/licenses/by/3.0/).
+Code and documentation copyright 2011-2019 the [Bootstrap Authors](https://github.com/twbs/bootstrap/graphs/contributors) and [Twitter, Inc.](https://twitter.com) Code released under the [MIT License](https://github.com/twbs/bootstrap/blob/master/LICENSE). Docs released under [Creative Commons](https://github.com/twbs/bootstrap/blob/master/docs/LICENSE).
--- a/SECURITY.md
+++ b/SECURITY.md
@ -1,7 +0,0 @@
-# Reporting Security Issues
-
-The Bootstrap team and community take security issues in Bootstrap seriously. We appreciate your efforts to responsibly disclose your findings, and will make every effort to acknowledge your contributions.
-
-To report a security issue, email [security@getbootstrap.com](mailto:security@getbootstrap.com) and include the word "SECURITY" in the subject line.
-
-We'll endeavor to respond quickly, and will keep you updated throughout the process.
--- a/_config.yml
+++ b/_config.yml
@ -0,0 +1,68 @@
+# Dependencies
+markdown:       kramdown
+highlighter:    rouge
+
+kramdown:
+  auto_ids:     true
+
+# Permalinks
+permalink:      pretty
+
+# Server
+source:         "site"
+destination:    ./_gh_pages
+host:           "localhost"
+port:           9001
+baseurl:        ""
+url:            "https://getbootstrap.com"
+encoding:       UTF-8
+exclude:
+  - docs/4.3/assets/scss/
+
+plugins:
+  - jekyll-redirect-from
+  - jekyll-sitemap
+  - jekyll-toc
+
+# Social
+title:              Bootstrap
+description:        "The most popular HTML, CSS, and JS library in the world."
+twitter:            getbootstrap
+authors:            "Mark Otto, Jacob Thornton, and Bootstrap contributors"
+social_image_path:  /docs/4.3/assets/brand/bootstrap-social.png
+social_logo_path:   /docs/4.3/assets/brand/bootstrap-social-logo.png
+
+# Custom variables
+current_version:      4.3.1
+current_ruby_version: 4.3.1
+docs_version:         4.3
+repo:                 "https://github.com/twbs/bootstrap"
+slack:                "https://bootstrap-slack.herokuapp.com"
+opencollective:       "https://opencollective.com/bootstrap"
+blog:                 "https://blog.getbootstrap.com"
+expo:                 "https://expo.getbootstrap.com"
+themes:               "https://themes.getbootstrap.com"
+
+download:
+  source:           "https://github.com/twbs/bootstrap/archive/v4.3.1.zip"
+  dist:             "https://github.com/twbs/bootstrap/releases/download/v4.3.1/bootstrap-4.3.1-dist.zip"
+
+cdn:
+  # See https://www.srihash.org for info on how to generate the hashes
+  css:              "https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css"
+  css_hash:         "sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T"
+  js:               "https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js"
+  js_hash:          "sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM"
+  js_bundle:        "https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.bundle.min.js"
+  js_bundle_hash:   "sha384-xrRywqdh3PHs8keKZN+8zzc5TX0GRTLCcmivcbNJWm2rs5C8PRhcEn3czEjhAO9o"
+  jquery:           "https://code.jquery.com/jquery-3.3.1.slim.min.js"
+  jquery_hash:      "sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo"
+  popper:           "https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js"
+  popper_hash:      "sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1"
+
+toc:
+  min_level:        2
+  max_level:        4
+  no_toc_section_class:
+    - "bd-callout"
+    - "bd-example"
--- a/build/.eslintrc.json
+++ b/build/.eslintrc.json
@ -8,7 +8,13 @@
  },
  "extends": "../.eslintrc.json",
  "rules": {
+    "consistent-return": "off",
+    "func-style": "off",
    "no-console": "off",
-    "strict": "error"
+    "no-magic-numbers": "off",
+    "no-process-env": "off",
+    "no-process-exit": "off",
+    "no-sync": "off",
+    "spaced-comment": "off"
  }
 }
--- a/build/banner.js
+++ b/build/banner.js
@ -7,7 +7,7 @@ function getBanner(pluginFilename) {
  return `/*!
  * Bootstrap${pluginFilename ? ` ${pluginFilename}` : ''} v${pkg.version} (${pkg.homepage})
  * Copyright 2011-${year} ${pkg.author}
-  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
+  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  */`
 }

--- a/build/build-plugins.js
+++ b/build/build-plugins.js
@ -1,35 +1,32 @@
-#!/usr/bin/env node
-
 /*!
 * Script to build our plugins to use them separately.
- * Copyright 2020-2021 The Bootstrap Authors
- * Copyright 2020-2021 Twitter, Inc.
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
+ * Copyright 2019 The Bootstrap Authors
+ * Copyright 2019 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
 */

 'use strict'

-const path = require('path')
-const rollup = require('rollup')
-const { babel } = require('@rollup/plugin-babel')
-const banner = require('./banner.js')
+const path    = require('path')
+const rollup  = require('rollup')
+const babel   = require('rollup-plugin-babel')
+const banner  = require('./banner.js')

-const rootPath = path.resolve(__dirname, '../js/dist/')
+const TEST    = process.env.NODE_ENV === 'test'
 const plugins = [
  babel({
-    // Only transpile our source code
-    exclude: 'node_modules/**',
-    // Include the helpers in each file, at most one copy of each
-    babelHelpers: 'bundled'
+    exclude: 'node_modules/**', // Only transpile our source code
+    externalHelpersWhitelist: [ // Include only required helpers
+      'defineProperties',
+      'createClass',
+      'inheritsLoose',
+      'defineProperty',
+      'objectSpread'
+    ]
  })
 ]
 const bsPlugins = {
-  Data: path.resolve(__dirname, '../js/src/dom/data.js'),
-  EventHandler: path.resolve(__dirname, '../js/src/dom/event-handler.js'),
-  Manipulator: path.resolve(__dirname, '../js/src/dom/manipulator.js'),
-  SelectorEngine: path.resolve(__dirname, '../js/src/dom/selector-engine.js'),
  Alert: path.resolve(__dirname, '../js/src/alert.js'),
-  Base: path.resolve(__dirname, '../js/src/base-component.js'),
  Button: path.resolve(__dirname, '../js/src/button.js'),
  Carousel: path.resolve(__dirname, '../js/src/carousel.js'),
  Collapse: path.resolve(__dirname, '../js/src/collapse.js'),
@ -39,150 +36,50 @@ const bsPlugins = {
  ScrollSpy: path.resolve(__dirname, '../js/src/scrollspy.js'),
  Tab: path.resolve(__dirname, '../js/src/tab.js'),
  Toast: path.resolve(__dirname, '../js/src/toast.js'),
-  Tooltip: path.resolve(__dirname, '../js/src/tooltip.js')
+  Tooltip: path.resolve(__dirname, '../js/src/tooltip.js'),
+  Util: path.resolve(__dirname, '../js/src/util.js')
 }
+const rootPath = TEST ? '../js/coverage/dist/' : '../js/dist/'

-const defaultPluginConfig = {
-  external: [
-    bsPlugins.Data,
-    bsPlugins.Base,
-    bsPlugins.EventHandler,
-    bsPlugins.SelectorEngine
-  ],
-  globals: {
-    [bsPlugins.Data]: 'Data',
-    [bsPlugins.Base]: 'Base',
-    [bsPlugins.EventHandler]: 'EventHandler',
-    [bsPlugins.SelectorEngine]: 'SelectorEngine'
-  }
-}
-
-const getConfigByPluginKey = pluginKey => {
-  if (
-    pluginKey === 'Data' ||
-    pluginKey === 'Manipulator' ||
-    pluginKey === 'EventHandler' ||
-    pluginKey === 'SelectorEngine' ||
-    pluginKey === 'Util' ||
-    pluginKey === 'Sanitizer'
-  ) {
-    return {
-      external: []
-    }
-  }
-
-  if (pluginKey === 'Alert' || pluginKey === 'Tab') {
-    return defaultPluginConfig
-  }
-
-  if (
-    pluginKey === 'Base' ||
-    pluginKey === 'Button' ||
-    pluginKey === 'Carousel' ||
-    pluginKey === 'Collapse' ||
-    pluginKey === 'Modal' ||
-    pluginKey === 'ScrollSpy'
-  ) {
-    const config = Object.assign(defaultPluginConfig)
-    config.external.push(bsPlugins.Manipulator)
-    config.globals[bsPlugins.Manipulator] = 'Manipulator'
-    return config
-  }
-
-  if (pluginKey === 'Dropdown' || pluginKey === 'Tooltip') {
-    const config = Object.assign(defaultPluginConfig)
-    config.external.push(bsPlugins.Manipulator, '@popperjs/core')
-    config.globals[bsPlugins.Manipulator] = 'Manipulator'
-    config.globals['@popperjs/core'] = 'Popper'
-    return config
-  }
-
-  if (pluginKey === 'Popover') {
-    return {
-      external: [
-        bsPlugins.Data,
-        bsPlugins.SelectorEngine,
-        bsPlugins.Tooltip
-      ],
-      globals: {
-        [bsPlugins.Data]: 'Data',
-        [bsPlugins.SelectorEngine]: 'SelectorEngine',
-        [bsPlugins.Tooltip]: 'Tooltip'
-      }
-    }
-  }
-
-  if (pluginKey === 'Toast') {
-    return {
-      external: [
-        bsPlugins.Data,
-        bsPlugins.Base,
-        bsPlugins.EventHandler,
-        bsPlugins.Manipulator
-      ],
-      globals: {
-        [bsPlugins.Data]: 'Data',
-        [bsPlugins.Base]: 'Base',
-        [bsPlugins.EventHandler]: 'EventHandler',
-        [bsPlugins.Manipulator]: 'Manipulator'
-      }
-    }
-  }
-}
-
-const utilObjects = new Set([
-  'Util',
-  'Sanitizer'
-])
-
-const domObjects = new Set([
-  'Data',
-  'EventHandler',
-  'Manipulator',
-  'SelectorEngine'
-])
-
-const build = async plugin => {
+function build(plugin) {
  console.log(`Building ${plugin} plugin...`)

-  const { external, globals } = getConfigByPluginKey(plugin)
-  const pluginFilename = path.basename(bsPlugins[plugin])
-  let pluginPath = rootPath
-
-  if (utilObjects.has(plugin)) {
-    pluginPath = `${rootPath}/util/`
+  const external = ['jquery', 'popper.js']
+  const globals = {
+    jquery: 'jQuery', // Ensure we use jQuery which is always available even in noConflict mode
+    'popper.js': 'Popper'
  }

-  if (domObjects.has(plugin)) {
-    pluginPath = `${rootPath}/dom/`
+  // Do not bundle Util in plugins
+  if (plugin !== 'Util') {
+    external.push(bsPlugins.Util)
+    globals[bsPlugins.Util] = 'Util'
  }

-  const bundle = await rollup.rollup({
+  // Do not bundle Tooltip in Popover
+  if (plugin === 'Popover') {
+    external.push(bsPlugins.Tooltip)
+    globals[bsPlugins.Tooltip] = 'Tooltip'
+  }
+
+  const pluginFilename = `${plugin.toLowerCase()}.js`
+
+  rollup.rollup({
    input: bsPlugins[plugin],
    plugins,
    external
+  }).then((bundle) => {
+    bundle.write({
+      banner: banner(pluginFilename),
+      format: 'umd',
+      name: plugin,
+      sourcemap: true,
+      globals,
+      file: path.resolve(__dirname, `${rootPath}${pluginFilename}`)
+    })
+      .then(() => console.log(`Building ${plugin} plugin... Done!`))
+      .catch((err) => console.error(`${plugin}: ${err}`))
  })
-
-  await bundle.write({
-    banner: banner(pluginFilename),
-    format: 'umd',
-    name: plugin,
-    sourcemap: true,
-    globals,
-    file: path.resolve(__dirname, `${pluginPath}/${pluginFilename}`)
-  })
-
-  console.log(`Building ${plugin} plugin... Done!`)
 }

-const main = async () => {
-  try {
-    await Promise.all(Object.keys(bsPlugins).map(plugin => build(plugin)))
-  } catch (error) {
-    console.error(error)
-
-    process.exit(1)
-  }
-}
-
-main()
+Object.keys(bsPlugins).forEach((plugin) => build(plugin))
--- a/build/change-version.js
+++ b/build/change-version.js
@ -2,9 +2,9 @@

 /*!
 * Script to update version number references in the project.
- * Copyright 2017-2021 The Bootstrap Authors
- * Copyright 2017-2021 Twitter, Inc.
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
+ * Copyright 2017-2019 The Bootstrap Authors
+ * Copyright 2017-2019 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
 */

 'use strict'
@ -17,11 +17,11 @@ sh.config.fatal = true

 // Blame TC39... https://github.com/benjamingr/RegExp.escape/issues/37
 function regExpQuote(string) {
-  return string.replace(/[$()*+-.?[\\\]^{|}]/g, '\\$&')
+  return string.replace(/[-\\^$*+?.()|[\]{}]/g, '\\$&')
 }

 function regExpQuoteReplacement(string) {
-  return string.replace(/\$/g, '$$')
+  return string.replace(/[$]/g, '$$')
 }

 const DRY_RUN = false
@ -30,21 +30,18 @@ function walkAsync(directory, excludedDirectories, fileCallback, errback) {
  if (excludedDirectories.has(path.parse(directory).base)) {
    return
  }
-
  fs.readdir(directory, (err, names) => {
    if (err) {
      errback(err)
      return
    }
-
-    names.forEach(name => {
+    names.forEach((name) => {
      const filepath = path.join(directory, name)
      fs.lstat(filepath, (err, stats) => {
        if (err) {
          process.nextTick(errback, err)
          return
        }
-
        if (stats.isDirectory()) {
          process.nextTick(walkAsync, filepath, excludedDirectories, fileCallback, errback)
        } else if (stats.isFile()) {
@ -58,21 +55,18 @@ function walkAsync(directory, excludedDirectories, fileCallback, errback) {
 function replaceRecursively(directory, excludedDirectories, allowedExtensions, original, replacement) {
  original = new RegExp(regExpQuote(original), 'g')
  replacement = regExpQuoteReplacement(replacement)
-  const updateFile = DRY_RUN ?
-    filepath => {
-      if (allowedExtensions.has(path.parse(filepath).ext)) {
-        console.log(`FILE: ${filepath}`)
-      } else {
-        console.log(`EXCLUDED:${filepath}`)
-      }
-    } :
-    filepath => {
-      if (allowedExtensions.has(path.parse(filepath).ext)) {
-        sh.sed('-i', original, replacement, filepath)
-      }
+  const updateFile = DRY_RUN ? (filepath) => {
+    if (allowedExtensions.has(path.parse(filepath).ext)) {
+      console.log(`FILE: ${filepath}`)
+    } else {
+      console.log(`EXCLUDED:${filepath}`)
    }
-
-  walkAsync(directory, excludedDirectories, updateFile, err => {
+  } : (filepath) => {
+    if (allowedExtensions.has(path.parse(filepath).ext)) {
+      sh.sed('-i', original, replacement, filepath)
+    }
+  }
+  walkAsync(directory, excludedDirectories, updateFile, (err) => {
    console.error('ERROR while traversing directory!:')
    console.error(err)
    process.exit(1)
@ -85,17 +79,15 @@ function main(args) {
    console.error('Got arguments:', args)
    process.exit(1)
  }
-
  const oldVersion = args[0]
  const newVersion = args[1]
  const EXCLUDED_DIRS = new Set([
    '.git',
-    '_gh_pages',
    'node_modules',
    'vendor'
  ])
  const INCLUDED_EXTENSIONS = new Set([
-    // This extension allowlist is how we avoid modifying binary files
+    // This extension whitelist is how we avoid modifying binary files
    '',
    '.css',
    '.html',
--- a/build/generate-sri.js
+++ b/build/generate-sri.js
@ -5,9 +5,9 @@
 * Remember to use the same vendor files as the CDN ones,
 * otherwise the hashes won't match!
 *
- * Copyright 2017-2021 The Bootstrap Authors
- * Copyright 2017-2021 Twitter, Inc.
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
+ * Copyright 2017-2019 The Bootstrap Authors
+ * Copyright 2017-2019 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
 */

 'use strict'
@ -17,22 +17,20 @@ const fs = require('fs')
 const path = require('path')
 const sh = require('shelljs')

+const pkg = require('../package.json')
+
 sh.config.fatal = true

-const configFile = path.join(__dirname, '../config.yml')
+const configFile = path.join(__dirname, '../_config.yml')

 // Array of objects which holds the files to generate SRI hashes for.
 // `file` is the path from the root folder
-// `configPropertyName` is the config.yml variable's name of the file
+// `configPropertyName` is the _config.yml variable's name of the file
 const files = [
  {
    file: 'dist/css/bootstrap.min.css',
    configPropertyName: 'css_hash'
  },
-  {
-    file: 'dist/css/bootstrap.rtl.min.css',
-    configPropertyName: 'css_rtl_hash'
-  },
  {
    file: 'dist/js/bootstrap.min.js',
    configPropertyName: 'js_hash'
@ -42,12 +40,16 @@ const files = [
    configPropertyName: 'js_bundle_hash'
  },
  {
-    file: 'node_modules/@popperjs/core/dist/umd/popper.min.js',
+    file: `site/docs/${pkg.version_short}/assets/js/vendor/jquery-slim.min.js`,
+    configPropertyName: 'jquery_hash'
+  },
+  {
+    file: 'node_modules/popper.js/dist/umd/popper.min.js',
    configPropertyName: 'popper_hash'
  }
 ]

-files.forEach(file => {
+files.forEach((file) => {
  fs.readFile(file.file, 'utf8', (err, data) => {
    if (err) {
      throw err
@ -59,6 +61,6 @@ files.forEach(file => {

    console.log(`${file.configPropertyName}: ${integrity}`)

-    sh.sed('-i', new RegExp(`^(\\s+${file.configPropertyName}:\\s+["'])\\S*(["'])`), `$1${integrity}$2`, configFile)
+    sh.sed('-i', new RegExp(`(\\s${file.configPropertyName}:\\s+"|')(\\S+)("|')`), `$1${integrity}$3`, configFile)
  })
 })
--- a/build/postcss.config.js
+++ b/build/postcss.config.js
@ -1,19 +1,14 @@
 'use strict'

-module.exports = ctx => {
-  return {
-    map: ctx.file.dirname.includes('examples') ?
-      false :
-      {
-        inline: false,
-        annotation: true,
-        sourcesContent: true
-      },
-    plugins: {
-      autoprefixer: {
-        cascade: false
-      },
-      rtlcss: ctx.env === 'RTL' ? {} : false
+module.exports = (ctx) => ({
+  map: ctx.file.dirname.includes('examples') ? false : {
+    inline: false,
+    annotation: true,
+    sourcesContent: true
+  },
+  plugins: {
+    autoprefixer: {
+      cascade: false
    }
  }
-}
+})
--- a/build/rollup.config.js
+++ b/build/rollup.config.js
@ -1,50 +1,48 @@
 'use strict'

-const path = require('path')
-const { babel } = require('@rollup/plugin-babel')
-const { nodeResolve } = require('@rollup/plugin-node-resolve')
-const replace = require('@rollup/plugin-replace')
-const banner = require('./banner.js')
+const path    = require('path')
+const babel   = require('rollup-plugin-babel')
+const resolve = require('rollup-plugin-node-resolve')
+const banner  = require('./banner.js')

-const BUNDLE = process.env.BUNDLE === 'true'
-const ESM = process.env.ESM === 'true'
+const BUNDLE  = process.env.BUNDLE === 'true'

-let fileDest = `bootstrap${ESM ? '.esm' : ''}`
-const external = ['@popperjs/core']
+let fileDest  = 'bootstrap.js'
+const external = ['jquery', 'popper.js']
 const plugins = [
  babel({
-    // Only transpile our source code
-    exclude: 'node_modules/**',
-    // Include the helpers in the bundle, at most one copy of each
-    babelHelpers: 'bundled'
+    exclude: 'node_modules/**', // Only transpile our source code
+    externalHelpersWhitelist: [ // Include only required helpers
+      'defineProperties',
+      'createClass',
+      'inheritsLoose',
+      'defineProperty',
+      'objectSpread'
+    ]
  })
 ]
 const globals = {
-  '@popperjs/core': 'Popper'
+  jquery: 'jQuery', // Ensure we use jQuery which is always available even in noConflict mode
+  'popper.js': 'Popper'
 }

 if (BUNDLE) {
-  fileDest += '.bundle'
+  fileDest = 'bootstrap.bundle.js'
  // Remove last entry in external array to bundle Popper
  external.pop()
-  delete globals['@popperjs/core']
-  plugins.push(replace({ 'process.env.NODE_ENV': '"production"' }), nodeResolve())
+  delete globals['popper.js']
+  plugins.push(resolve())
 }

-const rollupConfig = {
-  input: path.resolve(__dirname, `../js/index.${ESM ? 'esm' : 'umd'}.js`),
+module.exports = {
+  input: path.resolve(__dirname, '../js/src/index.js'),
  output: {
    banner,
-    file: path.resolve(__dirname, `../dist/js/${fileDest}.js`),
-    format: ESM ? 'esm' : 'umd',
-    globals
+    file: path.resolve(__dirname, `../dist/js/${fileDest}`),
+    format: 'umd',
+    globals,
+    name: 'bootstrap'
  },
  external,
  plugins
 }
-
-if (!ESM) {
-  rollupConfig.output.name = 'bootstrap'
-}
-
-module.exports = rollupConfig
--- a/build/ship.sh
+++ b/build/ship.sh
@ -1,7 +1,4 @@
 #!/usr/bin/env bash
-
-set -e
-
 #
 # Usage
 # ---------------
@ -21,35 +18,35 @@ end=$'\e[0m'
 current_version=$(node -p "require('./package.json').version")

 if [[ $# -lt 1 ]]; then
-  printf "\n%s⚠️  Shipping aborted. You must specify a version.\n%s" "$red" "$end"
+  printf "\n%s⚠️  Shipping aborted. You must specify a version.\n%s" $red $end
  exit 1
 fi

 # Pulling latest changes, just to be sure
-printf "\n%s=======================================================%s" "$magenta" "$end"
-printf "\n%sPulling latest changes...%s" "$magenta" "$end"
-printf "\n%s=======================================================\n\n%s" "$magenta" "$end"
-git pull origin main
+printf "\n%s=======================================================%s" $magenta $end
+printf "\n%sPulling latest changes...%s" $magenta $end
+printf "\n%s=======================================================\n\n%s" $magenta $end
+git pull origin v4-dev

 # Update version number
-printf "\n%s=======================================================%s" "$magenta" "$end"
-printf "\n%sUpdating version number...%s" "$magenta" "$end"
-printf "\n%s=======================================================\n%s" "$magenta" "$end"
+printf "\n%s=======================================================%s" $magenta $end
+printf "\n%sUpdating version number...%s" $magenta $end
+printf "\n%s=======================================================\n%s" $magenta $end
 npm run release-version "$current_version" "$1"

 # Build release
-printf "\n%s=======================================================%s" "$magenta" "$end"
-printf "\n%sBuilding release...%s" "$magenta" "$end"
-printf "\n%s=======================================================\n%s" "$magenta" "$end"
+printf "\n%s=======================================================%s" $magenta $end
+printf "\n%sBuilding release...%s" $magenta $end
+printf "\n%s=======================================================\n%s" $magenta $end
 npm run release

 # Copy the contents of the built docs site over to `bs-docs` repo
-printf "\n%s=======================================================%s" "$magenta" "$end"
-printf "\n%sCopy it over...%s" "$magenta" "$end"
-printf "\n%s=======================================================\n%s" "$magenta" "$end"
+printf "\n%s=======================================================%s" $magenta $end
+printf "\n%sCopy it over...%s" $magenta $end
+printf "\n%s=======================================================\n%s" $magenta $end
 cp -rf _gh_pages/. ../bs-docs/
 printf "\nDone!\n"

-printf "\n%s=======================================================%s" "$green" "$end"
-printf "\n%sSuccess, $1 is ready to review and publish.%s" "$green" "$end"
-printf "\n%s=======================================================\n\n%s" "$green" "$end"
+printf "\n%s=======================================================%s" $green $end
+printf "\n%sSuccess, $1 is ready to review and publish.%s" $green $end
+printf "\n%s=======================================================\n\n%s" $green $end
--- a/build/svgo.yml
+++ b/build/svgo.yml
@ -15,9 +15,10 @@ js2svg:
  indent: 2

 plugins:
-#  - addAttributesToSVGElement:
-#      attributes:
-#        - focusable: false
+  # remove this with IE 11 is no longer supported
+  - addAttributesToSVGElement:
+      attributes:
+        - focusable: false
  - cleanupAttrs: true
  - cleanupEnableBackground: true
  - cleanupIDs: true
@ -34,9 +35,6 @@ plugins:
  - minifyStyles: true
  - moveElemsAttrsToGroup: true
  - moveGroupAttrsToElems: true
-  - removeAttrs:
-      attrs:
-        - "data-name"
  - removeComments: true
  - removeDesc: true
  - removeDoctype: true
--- a/build/vnu-jar.js
+++ b/build/vnu-jar.js
@ -2,9 +2,9 @@

 /*!
 * Script to run vnu-jar if Java is available.
- * Copyright 2017-2021 The Bootstrap Authors
- * Copyright 2017-2021 Twitter, Inc.
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
+ * Copyright 2017-2019 The Bootstrap Authors
+ * Copyright 2017-2019 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
 */

 'use strict'
@ -18,7 +18,7 @@ childProcess.exec('java -version', (error, stdout, stderr) => {
    return
  }

-  const is32bitJava = !/64-Bit/.test(stderr)
+  const is32bitJava = !stderr.match(/64-Bit/)

  // vnu-jar accepts multiple ignores joined with a `|`.
  // Also note that the ignores are regular expressions.
@ -33,11 +33,12 @@ childProcess.exec('java -version', (error, stdout, stderr) => {
    // Content → Reboot uses various date/time inputs as a visual example.
    // Documentation does not rely on them being usable.
    'The “date” input type is not supported in all browsers.*',
-    'The “week” input type is not supported in all browsers.*',
-    'The “month” input type is not supported in all browsers.*',
-    'The “color” input type is not supported in all browsers.*',
-    'The “datetime-local” input type is not supported in all browsers.*',
-    'The “time” input type is not supported in all browsers.*'
+    'The “time” input type is not supported in all browsers.*',
+    // IE11 doesn't recognise <main> / give the element an implicit "main" landmark.
+    // Explicit role="main" is redundant for other modern browsers, but still valid.
+    'The “main” role is unnecessary for element “main”.',
+    // Ignore the wrong lanuage code warnings for now; they happen randomly.
+    'This document appears to be written in.*'
  ].join('|')

  const args = [
@ -45,8 +46,6 @@ childProcess.exec('java -version', (error, stdout, stderr) => {
    vnu,
    '--asciiquotes',
    '--skip-non-html',
-    // Ignore the language code warnings
-    '--no-langdetect',
    '--Werror',
    `--filterpattern "${ignores}"`,
    '_gh_pages/',
--- a/build/zip-examples.js
+++ b/build/zip-examples.js
@ -1,90 +0,0 @@
-#!/usr/bin/env node
-
-/*!
- * Script to create the built examples zip archive;
- * requires the `zip` command to be present!
- * Copyright 2020-2021 The Bootstrap Authors
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
- */
-
-'use strict'
-
-const path = require('path')
-const sh = require('shelljs')
-
-const pkg = require('../package.json')
-
-const versionShort = pkg.config.version_short
-const distFolder = `bootstrap-${pkg.version}-examples`
-const rootDocsDir = '_gh_pages'
-const docsDir = `${rootDocsDir}/docs/${versionShort}/`
-
-// these are the files we need in the examples
-const cssFiles = [
-  'bootstrap.min.css',
-  'bootstrap.min.css.map',
-  'bootstrap.rtl.min.css',
-  'bootstrap.rtl.min.css.map'
-]
-const jsFiles = [
-  'bootstrap.bundle.min.js',
-  'bootstrap.bundle.min.js.map'
-]
-const imgFiles = [
-  'bootstrap-logo.svg',
-  'bootstrap-logo-white.svg'
-]
-
-sh.config.fatal = true
-
-if (!sh.test('-d', rootDocsDir)) {
-  throw new Error(`The "${rootDocsDir}" folder does not exist, did you forget building the docs?`)
-}
-
-// switch to the root dir
-sh.cd(path.join(__dirname, '..'))
-
-// remove any previously created folder/zip with the same name
-sh.rm('-rf', [distFolder, `${distFolder}.zip`])
-
-// create any folders so that `cp` works
-sh.mkdir('-p', [
-  distFolder,
-  `${distFolder}/assets/brand/`,
-  `${distFolder}/assets/dist/css/`,
-  `${distFolder}/assets/dist/js/`
-])
-
-sh.cp('-Rf', `${docsDir}/examples/*`, distFolder)
-
-cssFiles.forEach(file => {
-  sh.cp('-f', `${docsDir}/dist/css/${file}`, `${distFolder}/assets/dist/css/`)
-})
-
-jsFiles.forEach(file => {
-  sh.cp('-f', `${docsDir}/dist/js/${file}`, `${distFolder}/assets/dist/js/`)
-})
-
-imgFiles.forEach(file => {
-  sh.cp('-f', `${docsDir}/assets/brand/${file}`, `${distFolder}/assets/brand/`)
-})
-
-sh.rm(`${distFolder}/index.html`)
-
-// get all examples' HTML files
-sh.find(`${distFolder}/**/*.html`).forEach(file => {
-  const fileContents = sh.cat(file)
-    .toString()
-    .replace(new RegExp(`"/docs/${versionShort}/`, 'g'), '"../')
-    .replace(/"..\/dist\//g, '"../assets/dist/')
-    .replace(/(<link href="\.\.\/.*) integrity=".*>/g, '$1>')
-    .replace(/(<script src="\.\.\/.*) integrity=".*>/g, '$1></script>')
-    .replace(/( +)<!-- favicons(.|\n)+<style>/i, '    <style>')
-  new sh.ShellString(fileContents).to(file)
-})
-
-// create the zip file
-sh.exec(`zip -r9 "${distFolder}.zip" "${distFolder}"`)
-
-// remove the folder we created
-sh.rm('-rf', distFolder)
--- a/composer.json
+++ b/composer.json
@ -26,6 +26,11 @@
    "issues": "https://github.com/twbs/bootstrap/issues"
  },
  "license": "MIT",
+  "extra": {
+    "branch-alias": {
+      "dev-master": "3.3.x-dev"
+    }
+  },
  "replace": {
    "twitter/bootstrap": "self.version"
  }
--- a/config.yml
+++ b/config.yml
@ -1,79 +0,0 @@
-languageCode:           "en"
-title:                  "Bootstrap"
-baseURL:                "https://getbootstrap.com"
-enableInlineShortcodes: true
-
-markup:
-  goldmark:
-    renderer:
-      unsafe:           true
-  highlight:
-    noClasses:          false
-  tableOfContents:
-    startLevel:         2
-    endLevel:           6
-
-buildDrafts:            true
-buildFuture:            true
-
-enableRobotsTXT:        true
-metaDataFormat:         "yaml"
-disableKinds:           ["404", "taxonomy", "taxonomyTerm", "RSS"]
-
-publishDir:             "_gh_pages"
-
-module:
-  mounts:
-    - source:           dist
-      target:           static/docs/5.0/dist
-    - source:           site/assets
-      target:           assets
-    - source:           site/content
-      target:           content
-    - source:           site/data
-      target:           data
-    - source:           site/layouts
-      target:           layouts
-    - source:           site/static
-      target:           static
-    - source:           site/static/docs/5.0/assets/img/favicons/apple-touch-icon.png
-      target:           static/apple-touch-icon.png
-    - source:           site/static/docs/5.0/assets/img/favicons/favicon.ico
-      target:           static/favicon.ico
-
-params:
-  description:          "The most popular HTML, CSS, and JS library in the world."
-  authors:              "Mark Otto, Jacob Thornton, and Bootstrap contributors"
-  social_image_path:    /docs/5.0/assets/brand/bootstrap-social.png
-  social_logo_path:     /docs/5.0/assets/brand/bootstrap-social-logo.png
-
-  current_version:      "5.0.0-beta1"
-  current_ruby_version: "5.0.0.beta1"
-  docs_version:         "5.0"
-  rfs_version:          "9.0.3"
-  github_org:           "https://github.com/twbs"
-  repo:                 "https://github.com/twbs/bootstrap"
-  twitter:              "getbootstrap"
-  slack:                "https://bootstrap-slack.herokuapp.com/"
-  opencollective:       "https://opencollective.com/bootstrap"
-  blog:                 "https://blog.getbootstrap.com/"
-  themes:               "https://themes.getbootstrap.com/"
-  icons:                "https://icons.getbootstrap.com/"
-
-  download:
-    source:             "https://github.com/twbs/bootstrap/archive/v5.0.0-beta1.zip"
-    dist:               "https://github.com/twbs/bootstrap/releases/download/v5.0.0-beta1/bootstrap-5.0.0-beta1-dist.zip"
-    dist_examples:      "https://github.com/twbs/bootstrap/releases/download/v5.0.0-beta1/bootstrap-5.0.0-beta1-examples.zip"
-
-  cdn:
-    # See https://www.srihash.org for info on how to generate the hashes
-    css:              "https://cdn.jsdelivr.net/npm/bootstrap@5.0.0-beta1/dist/css/bootstrap.min.css"
-    css_hash:         "sha384-giJF6kkoqNQ00vy+HMDP7azOuL0xtbfIcaT9wjKHr8RbDVddVHyTfAAsrekwKmP1"
-    css_rtl:          "https://cdn.jsdelivr.net/npm/bootstrap@5.0.0-beta1/dist/css/bootstrap.rtl.min.css"
-    css_rtl_hash:     "sha384-mUkCBeyHPdg0tqB6JDd+65Gpw5h/l8DKcCTV2D2UpaMMFd7Jo8A+mDAosaWgFBPl"
-    js:               "https://cdn.jsdelivr.net/npm/bootstrap@5.0.0-beta1/dist/js/bootstrap.min.js"
-    js_hash:          "sha384-pQQkAEnwaBkjpqZ8RU1fF1AKtTcHJwFl3pblpTlHXybJjHpMYo79HY3hIi4NKxyj"
-    js_bundle:        "https://cdn.jsdelivr.net/npm/bootstrap@5.0.0-beta1/dist/js/bootstrap.bundle.min.js"
-    js_bundle_hash:   "sha384-ygbV9kiqUc6oa4msXn9868pTtWMgiQaeYH7/t7LECLbyPA2x65Kgf80OJFdroafW"
-    popper:           "https://cdn.jsdelivr.net/npm/@popperjs/core@2.6.0/dist/umd/popper.min.js"
-    popper_hash:      "sha384-KsvD1yqQ1/1+IA7gi3P0tyJcT3vR+NdBTt13hSJ2lnve8agRGXTTyNaBYmCR/Nwi"
--- a/dist/css/bootstrap-grid.css
+++ b/dist/css/bootstrap-grid.css
--- a/dist/css/bootstrap-grid.css.map
+++ b/dist/css/bootstrap-grid.css.map
--- a/dist/css/bootstrap-grid.min.css
+++ b/dist/css/bootstrap-grid.min.css
--- a/dist/css/bootstrap-grid.min.css.map
+++ b/dist/css/bootstrap-grid.min.css.map
--- a/dist/css/bootstrap-grid.rtl.css
+++ b/dist/css/bootstrap-grid.rtl.css
--- a/dist/css/bootstrap-grid.rtl.css.map
+++ b/dist/css/bootstrap-grid.rtl.css.map
--- a/dist/css/bootstrap-grid.rtl.min.css
+++ b/dist/css/bootstrap-grid.rtl.min.css
--- a/dist/css/bootstrap-grid.rtl.min.css.map
+++ b/dist/css/bootstrap-grid.rtl.min.css.map
--- a/dist/css/bootstrap-reboot.css
+++ b/dist/css/bootstrap-reboot.css
@ -1,8 +1,8 @@
 /*!
- * Bootstrap Reboot v5.0.0-beta1 (https://getbootstrap.com/)
- * Copyright 2011-2020 The Bootstrap Authors
- * Copyright 2011-2020 Twitter, Inc.
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
+ * Bootstrap Reboot v4.3.1 (https://getbootstrap.com/)
+ * Copyright 2011-2019 The Bootstrap Authors
+ * Copyright 2011-2019 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
 * Forked from Normalize.css, licensed MIT (https://github.com/necolas/normalize.css/blob/master/LICENSE.md)
 */
 *,
@ -11,89 +11,41 @@
  box-sizing: border-box;
 }

-@media (prefers-reduced-motion: no-preference) {
-  :root {
-    scroll-behavior: smooth;
-  }
-}
-
-body {
-  margin: 0;
-  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
-  font-size: 1rem;
-  font-weight: 400;
-  line-height: 1.5;
-  color: #212529;
-  background-color: #fff;
+html {
+  font-family: sans-serif;
+  line-height: 1.15;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
 }

-[tabindex="-1"]:focus:not(:focus-visible) {
+article, aside, figcaption, figure, footer, header, hgroup, main, nav, section {
+  display: block;
+}
+
+body {
+  margin: 0;
+  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
+  font-size: 1rem;
+  font-weight: 400;
+  line-height: 1.5;
+  color: #212529;
+  text-align: left;
+  background-color: #fff;
+}
+
+[tabindex="-1"]:focus {
  outline: 0 !important;
 }

 hr {
-  margin: 1rem 0;
-  color: inherit;
-  background-color: currentColor;
-  border: 0;
-  opacity: 0.25;
+  box-sizing: content-box;
+  height: 0;
+  overflow: visible;
 }

-hr:not([size]) {
-  height: 1px;
-}
-
-h6, h5, h4, h3, h2, h1 {
+h1, h2, h3, h4, h5, h6 {
  margin-top: 0;
  margin-bottom: 0.5rem;
-  font-weight: 500;
-  line-height: 1.2;
-}
-
-h1 {
-  font-size: calc(1.375rem + 1.5vw);
-}
-@media (min-width: 1200px) {
-  h1 {
-    font-size: 2.5rem;
-  }
-}
-
-h2 {
-  font-size: calc(1.325rem + 0.9vw);
-}
-@media (min-width: 1200px) {
-  h2 {
-    font-size: 2rem;
-  }
-}
-
-h3 {
-  font-size: calc(1.3rem + 0.6vw);
-}
-@media (min-width: 1200px) {
-  h3 {
-    font-size: 1.75rem;
-  }
-}
-
-h4 {
-  font-size: calc(1.275rem + 0.3vw);
-}
-@media (min-width: 1200px) {
-  h4 {
-    font-size: 1.5rem;
-  }
-}
-
-h5 {
-  font-size: 1.25rem;
-}
-
-h6 {
-  font-size: 1rem;
 }

 p {
@ -102,11 +54,12 @@ p {
 }

 abbr[title],
-abbr[data-bs-original-title] {
+abbr[data-original-title] {
  text-decoration: underline;
  -webkit-text-decoration: underline dotted;
  text-decoration: underline dotted;
  cursor: help;
+  border-bottom: 0;
  -webkit-text-decoration-skip-ink: none;
  text-decoration-skip-ink: none;
 }
@ -117,11 +70,6 @@ address {
  line-height: inherit;
 }

-ol,
-ul {
-  padding-left: 2rem;
-}
-
 ol,
 ul,
 dl {
@ -141,7 +89,7 @@ dt {
 }

 dd {
-  margin-bottom: 0.5rem;
+  margin-bottom: .5rem;
  margin-left: 0;
 }

@ -155,127 +103,97 @@ strong {
 }

 small {
-  font-size: 0.875em;
-}
-
-mark {
-  padding: 0.2em;
-  background-color: #fcf8e3;
+  font-size: 80%;
 }

 sub,
 sup {
  position: relative;
-  font-size: 0.75em;
+  font-size: 75%;
  line-height: 0;
  vertical-align: baseline;
 }

 sub {
-  bottom: -0.25em;
+  bottom: -.25em;
 }

 sup {
-  top: -0.5em;
+  top: -.5em;
 }

 a {
-  color: #0d6efd;
-  text-decoration: underline;
-}
-a:hover {
-  color: #0a58ca;
+  color: #007bff;
+  text-decoration: none;
+  background-color: transparent;
 }

-a:not([href]):not([class]), a:not([href]):not([class]):hover {
+a:hover {
+  color: #0056b3;
+  text-decoration: underline;
+}
+
+a:not([href]):not([tabindex]) {
  color: inherit;
  text-decoration: none;
 }

+a:not([href]):not([tabindex]):hover, a:not([href]):not([tabindex]):focus {
+  color: inherit;
+  text-decoration: none;
+}
+
+a:not([href]):not([tabindex]):focus {
+  outline: 0;
+}
+
 pre,
 code,
 kbd,
 samp {
  font-family: SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 1em;
-  direction: ltr /* rtl:ignore */;
-  unicode-bidi: bidi-override;
 }

 pre {
-  display: block;
  margin-top: 0;
  margin-bottom: 1rem;
  overflow: auto;
-  font-size: 0.875em;
-}
-pre code {
-  font-size: inherit;
-  color: inherit;
-  word-break: normal;
-}
-
-code {
-  font-size: 0.875em;
-  color: #d63384;
-  word-wrap: break-word;
-}
-a > code {
-  color: inherit;
-}
-
-kbd {
-  padding: 0.2rem 0.4rem;
-  font-size: 0.875em;
-  color: #fff;
-  background-color: #212529;
-  border-radius: 0.2rem;
-}
-kbd kbd {
-  padding: 0;
-  font-size: 1em;
-  font-weight: 700;
 }

 figure {
  margin: 0 0 1rem;
 }

-img,
+img {
+  vertical-align: middle;
+  border-style: none;
+}
+
 svg {
+  overflow: hidden;
  vertical-align: middle;
 }

 table {
-  caption-side: bottom;
  border-collapse: collapse;
 }

 caption {
-  padding-top: 0.5rem;
-  padding-bottom: 0.5rem;
+  padding-top: 0.75rem;
+  padding-bottom: 0.75rem;
  color: #6c757d;
  text-align: left;
+  caption-side: bottom;
 }

 th {
  text-align: inherit;
-  text-align: -webkit-match-parent;
-}
-
-thead,
-tbody,
-tfoot,
-tr,
-td,
-th {
-  border-color: inherit;
-  border-style: solid;
-  border-width: 0;
 }

 label {
  display: inline-block;
+  margin-bottom: 0.5rem;
 }

 button {
@ -283,8 +201,8 @@ button {
 }

 button:focus {
-  outline: dotted 1px;
-  outline: -webkit-focus-ring-color auto 5px;
+  outline: 1px dotted;
+  outline: 5px auto -webkit-focus-ring-color;
 }

 input,
@ -299,41 +217,56 @@ textarea {
 }

 button,
-select {
-  text-transform: none;
+input {
+  overflow: visible;
 }

-[role=button] {
-  cursor: pointer;
+button,
+select {
+  text-transform: none;
 }

 select {
  word-wrap: normal;
 }

-[list]::-webkit-calendar-picker-indicator {
-  display: none;
-}
-
 button,
-[type=button],
-[type=reset],
-[type=submit] {
+[type="button"],
+[type="reset"],
+[type="submit"] {
  -webkit-appearance: button;
 }
+
 button:not(:disabled),
-[type=button]:not(:disabled),
-[type=reset]:not(:disabled),
-[type=submit]:not(:disabled) {
+[type="button"]:not(:disabled),
+[type="reset"]:not(:disabled),
+[type="submit"]:not(:disabled) {
  cursor: pointer;
 }

-::-moz-focus-inner {
+button::-moz-focus-inner,
+[type="button"]::-moz-focus-inner,
+[type="reset"]::-moz-focus-inner,
+[type="submit"]::-moz-focus-inner {
  padding: 0;
  border-style: none;
 }

+input[type="radio"],
+input[type="checkbox"] {
+  box-sizing: border-box;
+  padding: 0;
+}
+
+input[type="date"],
+input[type="time"],
+input[type="datetime-local"],
+input[type="month"] {
+  -webkit-appearance: listbox;
+}
+
 textarea {
+  overflow: auto;
  resize: vertical;
 }

@ -345,59 +278,33 @@ fieldset {
 }

 legend {
-  float: left;
+  display: block;
  width: 100%;
+  max-width: 100%;
  padding: 0;
-  margin-bottom: 0.5rem;
-  font-size: calc(1.275rem + 0.3vw);
+  margin-bottom: .5rem;
+  font-size: 1.5rem;
  line-height: inherit;
-}
-@media (min-width: 1200px) {
-  legend {
-    font-size: 1.5rem;
-  }
-}
-legend + * {
-  clear: left;
+  color: inherit;
+  white-space: normal;
 }

-::-webkit-datetime-edit-fields-wrapper,
-::-webkit-datetime-edit-text,
-::-webkit-datetime-edit-minute,
-::-webkit-datetime-edit-hour-field,
-::-webkit-datetime-edit-day-field,
-::-webkit-datetime-edit-month-field,
-::-webkit-datetime-edit-year-field {
-  padding: 0;
+progress {
+  vertical-align: baseline;
 }

-::-webkit-inner-spin-button {
+[type="number"]::-webkit-inner-spin-button,
+[type="number"]::-webkit-outer-spin-button {
  height: auto;
 }

-[type=search] {
+[type="search"] {
  outline-offset: -2px;
-  -webkit-appearance: textfield;
-}
-
-/* rtl:raw:
-[type="tel"],
-[type="url"],
-[type="email"],
-[type="number"] {
-  direction: ltr;
-}
-*/
-::-webkit-search-decoration {
  -webkit-appearance: none;
 }

-::-webkit-color-swatch-wrapper {
-  padding: 0;
-}
-
-::file-selector-button {
-  font: inherit;
+[type="search"]::-webkit-search-decoration {
+  -webkit-appearance: none;
 }

 ::-webkit-file-upload-button {
@ -409,21 +316,16 @@ output {
  display: inline-block;
 }

-iframe {
-  border: 0;
-}
-
 summary {
  display: list-item;
  cursor: pointer;
 }

-progress {
-  vertical-align: baseline;
+template {
+  display: none;
 }

 [hidden] {
  display: none !important;
 }
-
 /*# sourceMappingURL=bootstrap-reboot.css.map */
--- a/dist/css/bootstrap-reboot.css.map
+++ b/dist/css/bootstrap-reboot.css.map
--- a/dist/css/bootstrap-reboot.min.css
+++ b/dist/css/bootstrap-reboot.min.css
@ -1,8 +1,8 @@
 /*!
- * Bootstrap Reboot v5.0.0-beta1 (https://getbootstrap.com/)
- * Copyright 2011-2020 The Bootstrap Authors
- * Copyright 2011-2020 Twitter, Inc.
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
+ * Bootstrap Reboot v4.3.1 (https://getbootstrap.com/)
+ * Copyright 2011-2019 The Bootstrap Authors
+ * Copyright 2011-2019 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
 * Forked from Normalize.css, licensed MIT (https://github.com/necolas/normalize.css/blob/master/LICENSE.md)
- */*,::after,::before{box-sizing:border-box}@media (prefers-reduced-motion:no-preference){:root{scroll-behavior:smooth}}body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans","Liberation Sans",sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji";font-size:1rem;font-weight:400;line-height:1.5;color:#212529;background-color:#fff;-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent}[tabindex="-1"]:focus:not(:focus-visible){outline:0!important}hr{margin:1rem 0;color:inherit;background-color:currentColor;border:0;opacity:.25}hr:not([size]){height:1px}h1,h2,h3,h4,h5,h6{margin-top:0;margin-bottom:.5rem;font-weight:500;line-height:1.2}h1{font-size:calc(1.375rem + 1.5vw)}@media (min-width:1200px){h1{font-size:2.5rem}}h2{font-size:calc(1.325rem + .9vw)}@media (min-width:1200px){h2{font-size:2rem}}h3{font-size:calc(1.3rem + .6vw)}@media (min-width:1200px){h3{font-size:1.75rem}}h4{font-size:calc(1.275rem + .3vw)}@media (min-width:1200px){h4{font-size:1.5rem}}h5{font-size:1.25rem}h6{font-size:1rem}p{margin-top:0;margin-bottom:1rem}abbr[data-bs-original-title],abbr[title]{text-decoration:underline;-webkit-text-decoration:underline dotted;text-decoration:underline dotted;cursor:help;-webkit-text-decoration-skip-ink:none;text-decoration-skip-ink:none}address{margin-bottom:1rem;font-style:normal;line-height:inherit}ol,ul{padding-left:2rem}dl,ol,ul{margin-top:0;margin-bottom:1rem}ol ol,ol ul,ul ol,ul ul{margin-bottom:0}dt{font-weight:700}dd{margin-bottom:.5rem;margin-left:0}blockquote{margin:0 0 1rem}b,strong{font-weight:bolder}small{font-size:.875em}mark{padding:.2em;background-color:#fcf8e3}sub,sup{position:relative;font-size:.75em;line-height:0;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}a{color:#0d6efd;text-decoration:underline}a:hover{color:#0a58ca}a:not([href]):not([class]),a:not([href]):not([class]):hover{color:inherit;text-decoration:none}code,kbd,pre,samp{font-family:SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace;font-size:1em;direction:ltr;unicode-bidi:bidi-override}pre{display:block;margin-top:0;margin-bottom:1rem;overflow:auto;font-size:.875em}pre code{font-size:inherit;color:inherit;word-break:normal}code{font-size:.875em;color:#d63384;word-wrap:break-word}a>code{color:inherit}kbd{padding:.2rem .4rem;font-size:.875em;color:#fff;background-color:#212529;border-radius:.2rem}kbd kbd{padding:0;font-size:1em;font-weight:700}figure{margin:0 0 1rem}img,svg{vertical-align:middle}table{caption-side:bottom;border-collapse:collapse}caption{padding-top:.5rem;padding-bottom:.5rem;color:#6c757d;text-align:left}th{text-align:inherit;text-align:-webkit-match-parent}tbody,td,tfoot,th,thead,tr{border-color:inherit;border-style:solid;border-width:0}label{display:inline-block}button{border-radius:0}button:focus{outline:dotted 1px;outline:-webkit-focus-ring-color auto 5px}button,input,optgroup,select,textarea{margin:0;font-family:inherit;font-size:inherit;line-height:inherit}button,select{text-transform:none}[role=button]{cursor:pointer}select{word-wrap:normal}[list]::-webkit-calendar-picker-indicator{display:none}[type=button],[type=reset],[type=submit],button{-webkit-appearance:button}[type=button]:not(:disabled),[type=reset]:not(:disabled),[type=submit]:not(:disabled),button:not(:disabled){cursor:pointer}::-moz-focus-inner{padding:0;border-style:none}textarea{resize:vertical}fieldset{min-width:0;padding:0;margin:0;border:0}legend{float:left;width:100%;padding:0;margin-bottom:.5rem;font-size:calc(1.275rem + .3vw);line-height:inherit}@media (min-width:1200px){legend{font-size:1.5rem}}legend+*{clear:left}::-webkit-datetime-edit-day-field,::-webkit-datetime-edit-fields-wrapper,::-webkit-datetime-edit-hour-field,::-webkit-datetime-edit-minute,::-webkit-datetime-edit-month-field,::-webkit-datetime-edit-text,::-webkit-datetime-edit-year-field{padding:0}::-webkit-inner-spin-button{height:auto}[type=search]{outline-offset:-2px;-webkit-appearance:textfield}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-color-swatch-wrapper{padding:0}::file-selector-button{font:inherit}::-webkit-file-upload-button{font:inherit;-webkit-appearance:button}output{display:inline-block}iframe{border:0}summary{display:list-item;cursor:pointer}progress{vertical-align:baseline}[hidden]{display:none!important}
+ */*,::after,::before{box-sizing:border-box}html{font-family:sans-serif;line-height:1.15;-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent}article,aside,figcaption,figure,footer,header,hgroup,main,nav,section{display:block}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji";font-size:1rem;font-weight:400;line-height:1.5;color:#212529;text-align:left;background-color:#fff}[tabindex="-1"]:focus{outline:0!important}hr{box-sizing:content-box;height:0;overflow:visible}h1,h2,h3,h4,h5,h6{margin-top:0;margin-bottom:.5rem}p{margin-top:0;margin-bottom:1rem}abbr[data-original-title],abbr[title]{text-decoration:underline;-webkit-text-decoration:underline dotted;text-decoration:underline dotted;cursor:help;border-bottom:0;-webkit-text-decoration-skip-ink:none;text-decoration-skip-ink:none}address{margin-bottom:1rem;font-style:normal;line-height:inherit}dl,ol,ul{margin-top:0;margin-bottom:1rem}ol ol,ol ul,ul ol,ul ul{margin-bottom:0}dt{font-weight:700}dd{margin-bottom:.5rem;margin-left:0}blockquote{margin:0 0 1rem}b,strong{font-weight:bolder}small{font-size:80%}sub,sup{position:relative;font-size:75%;line-height:0;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}a{color:#007bff;text-decoration:none;background-color:transparent}a:hover{color:#0056b3;text-decoration:underline}a:not([href]):not([tabindex]){color:inherit;text-decoration:none}a:not([href]):not([tabindex]):focus,a:not([href]):not([tabindex]):hover{color:inherit;text-decoration:none}a:not([href]):not([tabindex]):focus{outline:0}code,kbd,pre,samp{font-family:SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace;font-size:1em}pre{margin-top:0;margin-bottom:1rem;overflow:auto}figure{margin:0 0 1rem}img{vertical-align:middle;border-style:none}svg{overflow:hidden;vertical-align:middle}table{border-collapse:collapse}caption{padding-top:.75rem;padding-bottom:.75rem;color:#6c757d;text-align:left;caption-side:bottom}th{text-align:inherit}label{display:inline-block;margin-bottom:.5rem}button{border-radius:0}button:focus{outline:1px dotted;outline:5px auto -webkit-focus-ring-color}button,input,optgroup,select,textarea{margin:0;font-family:inherit;font-size:inherit;line-height:inherit}button,input{overflow:visible}button,select{text-transform:none}select{word-wrap:normal}[type=button],[type=reset],[type=submit],button{-webkit-appearance:button}[type=button]:not(:disabled),[type=reset]:not(:disabled),[type=submit]:not(:disabled),button:not(:disabled){cursor:pointer}[type=button]::-moz-focus-inner,[type=reset]::-moz-focus-inner,[type=submit]::-moz-focus-inner,button::-moz-focus-inner{padding:0;border-style:none}input[type=checkbox],input[type=radio]{box-sizing:border-box;padding:0}input[type=date],input[type=datetime-local],input[type=month],input[type=time]{-webkit-appearance:listbox}textarea{overflow:auto;resize:vertical}fieldset{min-width:0;padding:0;margin:0;border:0}legend{display:block;width:100%;max-width:100%;padding:0;margin-bottom:.5rem;font-size:1.5rem;line-height:inherit;color:inherit;white-space:normal}progress{vertical-align:baseline}[type=number]::-webkit-inner-spin-button,[type=number]::-webkit-outer-spin-button{height:auto}[type=search]{outline-offset:-2px;-webkit-appearance:none}[type=search]::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{font:inherit;-webkit-appearance:button}output{display:inline-block}summary{display:list-item;cursor:pointer}template{display:none}[hidden]{display:none!important}
 /*# sourceMappingURL=bootstrap-reboot.min.css.map */
--- a/dist/css/bootstrap-reboot.min.css.map
+++ b/dist/css/bootstrap-reboot.min.css.map
--- a/dist/css/bootstrap-reboot.rtl.css
+++ b/dist/css/bootstrap-reboot.rtl.css
@ -1,426 +0,0 @@
-/*!
- * Bootstrap Reboot v5.0.0-beta1 (https://getbootstrap.com/)
- * Copyright 2011-2020 The Bootstrap Authors
- * Copyright 2011-2020 Twitter, Inc.
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
- * Forked from Normalize.css, licensed MIT (https://github.com/necolas/normalize.css/blob/master/LICENSE.md)
- */
-*,
-*::before,
-*::after {
-  box-sizing: border-box;
-}
-
-@media (prefers-reduced-motion: no-preference) {
-  :root {
-    scroll-behavior: smooth;
-  }
-}
-
-body {
-  margin: 0;
-  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
-  font-size: 1rem;
-  font-weight: 400;
-  line-height: 1.5;
-  color: #212529;
-  background-color: #fff;
-  -webkit-text-size-adjust: 100%;
-  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
-}
-
-[tabindex="-1"]:focus:not(:focus-visible) {
-  outline: 0 !important;
-}
-
-hr {
-  margin: 1rem 0;
-  color: inherit;
-  background-color: currentColor;
-  border: 0;
-  opacity: 0.25;
-}
-
-hr:not([size]) {
-  height: 1px;
-}
-
-h6, h5, h4, h3, h2, h1 {
-  margin-top: 0;
-  margin-bottom: 0.5rem;
-  font-weight: 500;
-  line-height: 1.2;
-}
-
-h1 {
-  font-size: calc(1.375rem + 1.5vw);
-}
-@media (min-width: 1200px) {
-  h1 {
-    font-size: 2.5rem;
-  }
-}
-
-h2 {
-  font-size: calc(1.325rem + 0.9vw);
-}
-@media (min-width: 1200px) {
-  h2 {
-    font-size: 2rem;
-  }
-}
-
-h3 {
-  font-size: calc(1.3rem + 0.6vw);
-}
-@media (min-width: 1200px) {
-  h3 {
-    font-size: 1.75rem;
-  }
-}
-
-h4 {
-  font-size: calc(1.275rem + 0.3vw);
-}
-@media (min-width: 1200px) {
-  h4 {
-    font-size: 1.5rem;
-  }
-}
-
-h5 {
-  font-size: 1.25rem;
-}
-
-h6 {
-  font-size: 1rem;
-}
-
-p {
-  margin-top: 0;
-  margin-bottom: 1rem;
-}
-
-abbr[title],
-abbr[data-bs-original-title] {
-  text-decoration: underline;
-  -webkit-text-decoration: underline dotted;
-  text-decoration: underline dotted;
-  cursor: help;
-  -webkit-text-decoration-skip-ink: none;
-  text-decoration-skip-ink: none;
-}
-
-address {
-  margin-bottom: 1rem;
-  font-style: normal;
-  line-height: inherit;
-}
-
-ol,
-ul {
-  padding-right: 2rem;
-}
-
-ol,
-ul,
-dl {
-  margin-top: 0;
-  margin-bottom: 1rem;
-}
-
-ol ol,
-ul ul,
-ol ul,
-ul ol {
-  margin-bottom: 0;
-}
-
-dt {
-  font-weight: 700;
-}
-
-dd {
-  margin-bottom: 0.5rem;
-  margin-right: 0;
-}
-
-blockquote {
-  margin: 0 0 1rem;
-}
-
-b,
-strong {
-  font-weight: bolder;
-}
-
-small {
-  font-size: 0.875em;
-}
-
-mark {
-  padding: 0.2em;
-  background-color: #fcf8e3;
-}
-
-sub,
-sup {
-  position: relative;
-  font-size: 0.75em;
-  line-height: 0;
-  vertical-align: baseline;
-}
-
-sub {
-  bottom: -0.25em;
-}
-
-sup {
-  top: -0.5em;
-}
-
-a {
-  color: #0d6efd;
-  text-decoration: underline;
-}
-a:hover {
-  color: #0a58ca;
-}
-
-a:not([href]):not([class]), a:not([href]):not([class]):hover {
-  color: inherit;
-  text-decoration: none;
-}
-
-pre,
-code,
-kbd,
-samp {
-  font-family: SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
-  font-size: 1em;
-  direction: ltr ;
-  unicode-bidi: bidi-override;
-}
-
-pre {
-  display: block;
-  margin-top: 0;
-  margin-bottom: 1rem;
-  overflow: auto;
-  font-size: 0.875em;
-}
-pre code {
-  font-size: inherit;
-  color: inherit;
-  word-break: normal;
-}
-
-code {
-  font-size: 0.875em;
-  color: #d63384;
-  word-wrap: break-word;
-}
-a > code {
-  color: inherit;
-}
-
-kbd {
-  padding: 0.2rem 0.4rem;
-  font-size: 0.875em;
-  color: #fff;
-  background-color: #212529;
-  border-radius: 0.2rem;
-}
-kbd kbd {
-  padding: 0;
-  font-size: 1em;
-  font-weight: 700;
-}
-
-figure {
-  margin: 0 0 1rem;
-}
-
-img,
-svg {
-  vertical-align: middle;
-}
-
-table {
-  caption-side: bottom;
-  border-collapse: collapse;
-}
-
-caption {
-  padding-top: 0.5rem;
-  padding-bottom: 0.5rem;
-  color: #6c757d;
-  text-align: right;
-}
-
-th {
-  text-align: inherit;
-  text-align: -webkit-match-parent;
-}
-
-thead,
-tbody,
-tfoot,
-tr,
-td,
-th {
-  border-color: inherit;
-  border-style: solid;
-  border-width: 0;
-}
-
-label {
-  display: inline-block;
-}
-
-button {
-  border-radius: 0;
-}
-
-button:focus {
-  outline: dotted 1px;
-  outline: -webkit-focus-ring-color auto 5px;
-}
-
-input,
-button,
-select,
-optgroup,
-textarea {
-  margin: 0;
-  font-family: inherit;
-  font-size: inherit;
-  line-height: inherit;
-}
-
-button,
-select {
-  text-transform: none;
-}
-
-[role=button] {
-  cursor: pointer;
-}
-
-select {
-  word-wrap: normal;
-}
-
-[list]::-webkit-calendar-picker-indicator {
-  display: none;
-}
-
-button,
-[type=button],
-[type=reset],
-[type=submit] {
-  -webkit-appearance: button;
-}
-button:not(:disabled),
-[type=button]:not(:disabled),
-[type=reset]:not(:disabled),
-[type=submit]:not(:disabled) {
-  cursor: pointer;
-}
-
-::-moz-focus-inner {
-  padding: 0;
-  border-style: none;
-}
-
-textarea {
-  resize: vertical;
-}
-
-fieldset {
-  min-width: 0;
-  padding: 0;
-  margin: 0;
-  border: 0;
-}
-
-legend {
-  float: right;
-  width: 100%;
-  padding: 0;
-  margin-bottom: 0.5rem;
-  font-size: calc(1.275rem + 0.3vw);
-  line-height: inherit;
-}
-@media (min-width: 1200px) {
-  legend {
-    font-size: 1.5rem;
-  }
-}
-legend + * {
-  clear: right;
-}
-
-::-webkit-datetime-edit-fields-wrapper,
-::-webkit-datetime-edit-text,
-::-webkit-datetime-edit-minute,
-::-webkit-datetime-edit-hour-field,
-::-webkit-datetime-edit-day-field,
-::-webkit-datetime-edit-month-field,
-::-webkit-datetime-edit-year-field {
-  padding: 0;
-}
-
-::-webkit-inner-spin-button {
-  height: auto;
-}
-
-[type=search] {
-  outline-offset: -2px;
-  -webkit-appearance: textfield;
-}
-
-[type="tel"],
-[type="url"],
-[type="email"],
-[type="number"] {
-  direction: ltr;
-}
-::-webkit-search-decoration {
-  -webkit-appearance: none;
-}
-
-::-webkit-color-swatch-wrapper {
-  padding: 0;
-}
-
-::file-selector-button {
-  font: inherit;
-}
-
-::-webkit-file-upload-button {
-  font: inherit;
-  -webkit-appearance: button;
-}
-
-output {
-  display: inline-block;
-}
-
-iframe {
-  border: 0;
-}
-
-summary {
-  display: list-item;
-  cursor: pointer;
-}
-
-progress {
-  vertical-align: baseline;
-}
-
-[hidden] {
-  display: none !important;
-}
-/*# sourceMappingURL=bootstrap-reboot.rtl.css.map */
--- a/dist/css/bootstrap-reboot.rtl.css.map
+++ b/dist/css/bootstrap-reboot.rtl.css.map
--- a/dist/css/bootstrap-reboot.rtl.min.css
+++ b/dist/css/bootstrap-reboot.rtl.min.css
@ -1,8 +0,0 @@
-/*!
- * Bootstrap Reboot v5.0.0-beta1 (https://getbootstrap.com/)
- * Copyright 2011-2020 The Bootstrap Authors
- * Copyright 2011-2020 Twitter, Inc.
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
- * Forked from Normalize.css, licensed MIT (https://github.com/necolas/normalize.css/blob/master/LICENSE.md)
- */*,::after,::before{box-sizing:border-box}@media (prefers-reduced-motion:no-preference){:root{scroll-behavior:smooth}}body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans","Liberation Sans",sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji";font-size:1rem;font-weight:400;line-height:1.5;color:#212529;background-color:#fff;-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent}[tabindex="-1"]:focus:not(:focus-visible){outline:0!important}hr{margin:1rem 0;color:inherit;background-color:currentColor;border:0;opacity:.25}hr:not([size]){height:1px}h1,h2,h3,h4,h5,h6{margin-top:0;margin-bottom:.5rem;font-weight:500;line-height:1.2}h1{font-size:calc(1.375rem + 1.5vw)}@media (min-width:1200px){h1{font-size:2.5rem}}h2{font-size:calc(1.325rem + .9vw)}@media (min-width:1200px){h2{font-size:2rem}}h3{font-size:calc(1.3rem + .6vw)}@media (min-width:1200px){h3{font-size:1.75rem}}h4{font-size:calc(1.275rem + .3vw)}@media (min-width:1200px){h4{font-size:1.5rem}}h5{font-size:1.25rem}h6{font-size:1rem}p{margin-top:0;margin-bottom:1rem}abbr[data-bs-original-title],abbr[title]{text-decoration:underline;-webkit-text-decoration:underline dotted;text-decoration:underline dotted;cursor:help;-webkit-text-decoration-skip-ink:none;text-decoration-skip-ink:none}address{margin-bottom:1rem;font-style:normal;line-height:inherit}ol,ul{padding-right:2rem}dl,ol,ul{margin-top:0;margin-bottom:1rem}ol ol,ol ul,ul ol,ul ul{margin-bottom:0}dt{font-weight:700}dd{margin-bottom:.5rem;margin-right:0}blockquote{margin:0 0 1rem}b,strong{font-weight:bolder}small{font-size:.875em}mark{padding:.2em;background-color:#fcf8e3}sub,sup{position:relative;font-size:.75em;line-height:0;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}a{color:#0d6efd;text-decoration:underline}a:hover{color:#0a58ca}a:not([href]):not([class]),a:not([href]):not([class]):hover{color:inherit;text-decoration:none}code,kbd,pre,samp{font-family:SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace;font-size:1em;direction:ltr;unicode-bidi:bidi-override}pre{display:block;margin-top:0;margin-bottom:1rem;overflow:auto;font-size:.875em}pre code{font-size:inherit;color:inherit;word-break:normal}code{font-size:.875em;color:#d63384;word-wrap:break-word}a>code{color:inherit}kbd{padding:.2rem .4rem;font-size:.875em;color:#fff;background-color:#212529;border-radius:.2rem}kbd kbd{padding:0;font-size:1em;font-weight:700}figure{margin:0 0 1rem}img,svg{vertical-align:middle}table{caption-side:bottom;border-collapse:collapse}caption{padding-top:.5rem;padding-bottom:.5rem;color:#6c757d;text-align:right}th{text-align:inherit;text-align:-webkit-match-parent}tbody,td,tfoot,th,thead,tr{border-color:inherit;border-style:solid;border-width:0}label{display:inline-block}button{border-radius:0}button:focus{outline:dotted 1px;outline:-webkit-focus-ring-color auto 5px}button,input,optgroup,select,textarea{margin:0;font-family:inherit;font-size:inherit;line-height:inherit}button,select{text-transform:none}[role=button]{cursor:pointer}select{word-wrap:normal}[list]::-webkit-calendar-picker-indicator{display:none}[type=button],[type=reset],[type=submit],button{-webkit-appearance:button}[type=button]:not(:disabled),[type=reset]:not(:disabled),[type=submit]:not(:disabled),button:not(:disabled){cursor:pointer}::-moz-focus-inner{padding:0;border-style:none}textarea{resize:vertical}fieldset{min-width:0;padding:0;margin:0;border:0}legend{float:right;width:100%;padding:0;margin-bottom:.5rem;font-size:calc(1.275rem + .3vw);line-height:inherit}@media (min-width:1200px){legend{font-size:1.5rem}}legend+*{clear:right}::-webkit-datetime-edit-day-field,::-webkit-datetime-edit-fields-wrapper,::-webkit-datetime-edit-hour-field,::-webkit-datetime-edit-minute,::-webkit-datetime-edit-month-field,::-webkit-datetime-edit-text,::-webkit-datetime-edit-year-field{padding:0}::-webkit-inner-spin-button{height:auto}[type=search]{outline-offset:-2px;-webkit-appearance:textfield}[type=email],[type=number],[type=tel],[type=url]{direction:ltr}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-color-swatch-wrapper{padding:0}::file-selector-button{font:inherit}::-webkit-file-upload-button{font:inherit;-webkit-appearance:button}output{display:inline-block}iframe{border:0}summary{display:list-item;cursor:pointer}progress{vertical-align:baseline}[hidden]{display:none!important}
-/*# sourceMappingURL=bootstrap-reboot.rtl.min.css.map */
--- a/dist/css/bootstrap-reboot.rtl.min.css.map
+++ b/dist/css/bootstrap-reboot.rtl.min.css.map
--- a/dist/css/bootstrap-utilities.css
+++ b/dist/css/bootstrap-utilities.css
--- a/dist/css/bootstrap-utilities.css.map
+++ b/dist/css/bootstrap-utilities.css.map
--- a/dist/css/bootstrap-utilities.min.css
+++ b/dist/css/bootstrap-utilities.min.css
--- a/dist/css/bootstrap-utilities.min.css.map
+++ b/dist/css/bootstrap-utilities.min.css.map
--- a/dist/css/bootstrap-utilities.rtl.css
+++ b/dist/css/bootstrap-utilities.rtl.css
--- a/dist/css/bootstrap-utilities.rtl.css.map
+++ b/dist/css/bootstrap-utilities.rtl.css.map
--- a/dist/css/bootstrap-utilities.rtl.min.css
+++ b/dist/css/bootstrap-utilities.rtl.min.css
--- a/dist/css/bootstrap-utilities.rtl.min.css.map
+++ b/dist/css/bootstrap-utilities.rtl.min.css.map
--- a/dist/css/bootstrap.css
+++ b/dist/css/bootstrap.css
--- a/dist/css/bootstrap.css.map
+++ b/dist/css/bootstrap.css.map
--- a/dist/css/bootstrap.min.css
+++ b/dist/css/bootstrap.min.css
--- a/dist/css/bootstrap.min.css.map
+++ b/dist/css/bootstrap.min.css.map
--- a/dist/css/bootstrap.rtl.css
+++ b/dist/css/bootstrap.rtl.css
--- a/dist/css/bootstrap.rtl.css.map
+++ b/dist/css/bootstrap.rtl.css.map
--- a/dist/css/bootstrap.rtl.min.css
+++ b/dist/css/bootstrap.rtl.min.css
--- a/dist/css/bootstrap.rtl.min.css.map
+++ b/dist/css/bootstrap.rtl.min.css.map
--- a/dist/js/bootstrap.bundle.js
+++ b/dist/js/bootstrap.bundle.js
--- a/dist/js/bootstrap.bundle.js.map
+++ b/dist/js/bootstrap.bundle.js.map
--- a/dist/js/bootstrap.bundle.min.js
+++ b/dist/js/bootstrap.bundle.min.js
--- a/dist/js/bootstrap.bundle.min.js.map
+++ b/dist/js/bootstrap.bundle.min.js.map
--- a/dist/js/bootstrap.esm.js
+++ b/dist/js/bootstrap.esm.js
--- a/dist/js/bootstrap.esm.js.map
+++ b/dist/js/bootstrap.esm.js.map
--- a/dist/js/bootstrap.esm.min.js
+++ b/dist/js/bootstrap.esm.min.js
--- a/dist/js/bootstrap.esm.min.js.map
+++ b/dist/js/bootstrap.esm.min.js.map
--- a/dist/js/bootstrap.js
+++ b/dist/js/bootstrap.js
--- a/dist/js/bootstrap.js.map
+++ b/dist/js/bootstrap.js.map
--- a/dist/js/bootstrap.min.js
+++ b/dist/js/bootstrap.min.js
--- a/dist/js/bootstrap.min.js.map
+++ b/dist/js/bootstrap.min.js.map
--- a/js/dist/alert.js
+++ b/js/dist/alert.js
@ -1,159 +1,33 @@
 /*!
-  * Bootstrap alert.js v5.0.0-beta1 (https://getbootstrap.com/)
-  * Copyright 2011-2020 The Bootstrap Authors (https://github.com/twbs/bootstrap/graphs/contributors)
-  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
+  * Bootstrap alert.js v4.3.1 (https://getbootstrap.com/)
+  * Copyright 2011-2019 The Bootstrap Authors (https://github.com/twbs/bootstrap/graphs/contributors)
+  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  */
 (function (global, factory) {
-  typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory(require('./dom/data.js'), require('./dom/event-handler.js')) :
-  typeof define === 'function' && define.amd ? define(['./dom/data', './dom/event-handler'], factory) :
-  (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.Alert = factory(global.Data, global.EventHandler));
-}(this, (function (Data, EventHandler) { 'use strict';
+  typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory(require('jquery'), require('./util.js')) :
+  typeof define === 'function' && define.amd ? define(['jquery', './util.js'], factory) :
+  (global = global || self, global.Alert = factory(global.jQuery, global.Util));
+}(this, function ($, Util) { 'use strict';

-  function _interopDefaultLegacy (e) { return e && typeof e === 'object' && 'default' in e ? e : { 'default': e }; }
+  $ = $ && $.hasOwnProperty('default') ? $['default'] : $;
+  Util = Util && Util.hasOwnProperty('default') ? Util['default'] : Util;

-  var Data__default = /*#__PURE__*/_interopDefaultLegacy(Data);
-  var EventHandler__default = /*#__PURE__*/_interopDefaultLegacy(EventHandler);
-
-  /**
-   * --------------------------------------------------------------------------
-   * Bootstrap (v5.0.0-beta1): util/index.js
-   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
-   * --------------------------------------------------------------------------
-   */
-  var MILLISECONDS_MULTIPLIER = 1000;
-  var TRANSITION_END = 'transitionend'; // Shoutout AngusCroll (https://goo.gl/pxwQGp)
-
-  var getSelector = function getSelector(element) {
-    var selector = element.getAttribute('data-bs-target');
-
-    if (!selector || selector === '#') {
-      var hrefAttr = element.getAttribute('href');
-      selector = hrefAttr && hrefAttr !== '#' ? hrefAttr.trim() : null;
+  function _defineProperties(target, props) {
+    for (var i = 0; i < props.length; i++) {
+      var descriptor = props[i];
+      descriptor.enumerable = descriptor.enumerable || false;
+      descriptor.configurable = true;
+      if ("value" in descriptor) descriptor.writable = true;
+      Object.defineProperty(target, descriptor.key, descriptor);
    }
+  }

-    return selector;
-  };
+  function _createClass(Constructor, protoProps, staticProps) {
+    if (protoProps) _defineProperties(Constructor.prototype, protoProps);
+    if (staticProps) _defineProperties(Constructor, staticProps);
+    return Constructor;
+  }

-  var getElementFromSelector = function getElementFromSelector(element) {
-    var selector = getSelector(element);
-    return selector ? document.querySelector(selector) : null;
-  };
-
-  var getTransitionDurationFromElement = function getTransitionDurationFromElement(element) {
-    if (!element) {
-      return 0;
-    } // Get transition-duration of the element
-
-
-    var _window$getComputedSt = window.getComputedStyle(element),
-        transitionDuration = _window$getComputedSt.transitionDuration,
-        transitionDelay = _window$getComputedSt.transitionDelay;
-
-    var floatTransitionDuration = Number.parseFloat(transitionDuration);
-    var floatTransitionDelay = Number.parseFloat(transitionDelay); // Return 0 if element or transition duration is not found
-
-    if (!floatTransitionDuration && !floatTransitionDelay) {
-      return 0;
-    } // If multiple durations are defined, take the first
-
-
-    transitionDuration = transitionDuration.split(',')[0];
-    transitionDelay = transitionDelay.split(',')[0];
-    return (Number.parseFloat(transitionDuration) + Number.parseFloat(transitionDelay)) * MILLISECONDS_MULTIPLIER;
-  };
-
-  var triggerTransitionEnd = function triggerTransitionEnd(element) {
-    element.dispatchEvent(new Event(TRANSITION_END));
-  };
-
-  var emulateTransitionEnd = function emulateTransitionEnd(element, duration) {
-    var called = false;
-    var durationPadding = 5;
-    var emulatedDuration = duration + durationPadding;
-
-    function listener() {
-      called = true;
-      element.removeEventListener(TRANSITION_END, listener);
-    }
-
-    element.addEventListener(TRANSITION_END, listener);
-    setTimeout(function () {
-      if (!called) {
-        triggerTransitionEnd(element);
-      }
-    }, emulatedDuration);
-  };
-
-  var getjQuery = function getjQuery() {
-    var _window = window,
-        jQuery = _window.jQuery;
-
-    if (jQuery && !document.body.hasAttribute('data-bs-no-jquery')) {
-      return jQuery;
-    }
-
-    return null;
-  };
-
-  var onDOMContentLoaded = function onDOMContentLoaded(callback) {
-    if (document.readyState === 'loading') {
-      document.addEventListener('DOMContentLoaded', callback);
-    } else {
-      callback();
-    }
-  };
-
-  var isRTL = document.documentElement.dir === 'rtl';
-
-  function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
-
-  function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
-  /**
-   * ------------------------------------------------------------------------
-   * Constants
-   * ------------------------------------------------------------------------
-   */
-
-  var VERSION = '5.0.0-beta1';
-
-  var BaseComponent = /*#__PURE__*/function () {
-    function BaseComponent(element) {
-      if (!element) {
-        return;
-      }
-
-      this._element = element;
-      Data__default['default'].setData(element, this.constructor.DATA_KEY, this);
-    }
-
-    var _proto = BaseComponent.prototype;
-
-    _proto.dispose = function dispose() {
-      Data__default['default'].removeData(this._element, this.constructor.DATA_KEY);
-      this._element = null;
-    }
-    /** Static */
-    ;
-
-    BaseComponent.getInstance = function getInstance(element) {
-      return Data__default['default'].getData(element, this.DATA_KEY);
-    };
-
-    _createClass(BaseComponent, null, [{
-      key: "VERSION",
-      get: function get() {
-        return VERSION;
-      }
-    }]);
-
-    return BaseComponent;
-  }();
-
-  function _defineProperties$1(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
-
-  function _createClass$1(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties$1(Constructor.prototype, protoProps); if (staticProps) _defineProperties$1(Constructor, staticProps); return Constructor; }
-
-  function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }
  /**
   * ------------------------------------------------------------------------
   * Constants
@ -161,86 +35,115 @@
   */

  var NAME = 'alert';
+  var VERSION = '4.3.1';
  var DATA_KEY = 'bs.alert';
  var EVENT_KEY = "." + DATA_KEY;
  var DATA_API_KEY = '.data-api';
-  var SELECTOR_DISMISS = '[data-bs-dismiss="alert"]';
-  var EVENT_CLOSE = "close" + EVENT_KEY;
-  var EVENT_CLOSED = "closed" + EVENT_KEY;
-  var EVENT_CLICK_DATA_API = "click" + EVENT_KEY + DATA_API_KEY;
-  var CLASSNAME_ALERT = 'alert';
-  var CLASSNAME_FADE = 'fade';
-  var CLASSNAME_SHOW = 'show';
-  /**
-   * ------------------------------------------------------------------------
-   * Class Definition
-   * ------------------------------------------------------------------------
-   */
+  var JQUERY_NO_CONFLICT = $.fn[NAME];
+  var Selector = {
+    DISMISS: '[data-dismiss="alert"]'
+  };
+  var Event = {
+    CLOSE: "close" + EVENT_KEY,
+    CLOSED: "closed" + EVENT_KEY,
+    CLICK_DATA_API: "click" + EVENT_KEY + DATA_API_KEY
+  };
+  var ClassName = {
+    ALERT: 'alert',
+    FADE: 'fade',
+    SHOW: 'show'
+    /**
+     * ------------------------------------------------------------------------
+     * Class Definition
+     * ------------------------------------------------------------------------
+     */

-  var Alert = /*#__PURE__*/function (_BaseComponent) {
-    _inheritsLoose(Alert, _BaseComponent);
+  };
+
+  var Alert =
+  /*#__PURE__*/
+  function () {
+    function Alert(element) {
+      this._element = element;
+    } // Getters

-    function Alert() {
-      return _BaseComponent.apply(this, arguments) || this;
-    }

    var _proto = Alert.prototype;

    // Public
    _proto.close = function close(element) {
-      var rootElement = element ? this._getRootElement(element) : this._element;
+      var rootElement = this._element;
+
+      if (element) {
+        rootElement = this._getRootElement(element);
+      }

      var customEvent = this._triggerCloseEvent(rootElement);

-      if (customEvent === null || customEvent.defaultPrevented) {
+      if (customEvent.isDefaultPrevented()) {
        return;
      }

      this._removeElement(rootElement);
+    };
+
+    _proto.dispose = function dispose() {
+      $.removeData(this._element, DATA_KEY);
+      this._element = null;
    } // Private
    ;

    _proto._getRootElement = function _getRootElement(element) {
-      return getElementFromSelector(element) || element.closest("." + CLASSNAME_ALERT);
+      var selector = Util.getSelectorFromElement(element);
+      var parent = false;
+
+      if (selector) {
+        parent = document.querySelector(selector);
+      }
+
+      if (!parent) {
+        parent = $(element).closest("." + ClassName.ALERT)[0];
+      }
+
+      return parent;
    };

    _proto._triggerCloseEvent = function _triggerCloseEvent(element) {
-      return EventHandler__default['default'].trigger(element, EVENT_CLOSE);
+      var closeEvent = $.Event(Event.CLOSE);
+      $(element).trigger(closeEvent);
+      return closeEvent;
    };

    _proto._removeElement = function _removeElement(element) {
      var _this = this;

-      element.classList.remove(CLASSNAME_SHOW);
+      $(element).removeClass(ClassName.SHOW);

-      if (!element.classList.contains(CLASSNAME_FADE)) {
+      if (!$(element).hasClass(ClassName.FADE)) {
        this._destroyElement(element);

        return;
      }

-      var transitionDuration = getTransitionDurationFromElement(element);
-      EventHandler__default['default'].one(element, TRANSITION_END, function () {
-        return _this._destroyElement(element);
-      });
-      emulateTransitionEnd(element, transitionDuration);
+      var transitionDuration = Util.getTransitionDurationFromElement(element);
+      $(element).one(Util.TRANSITION_END, function (event) {
+        return _this._destroyElement(element, event);
+      }).emulateTransitionEnd(transitionDuration);
    };

    _proto._destroyElement = function _destroyElement(element) {
-      if (element.parentNode) {
-        element.parentNode.removeChild(element);
-      }
-
-      EventHandler__default['default'].trigger(element, EVENT_CLOSED);
+      $(element).detach().trigger(Event.CLOSED).remove();
    } // Static
    ;

-    Alert.jQueryInterface = function jQueryInterface(config) {
+    Alert._jQueryInterface = function _jQueryInterface(config) {
      return this.each(function () {
-        var data = Data__default['default'].getData(this, DATA_KEY);
+        var $element = $(this);
+        var data = $element.data(DATA_KEY);

        if (!data) {
          data = new Alert(this);
+          $element.data(DATA_KEY, data);
        }

        if (config === 'close') {
@ -249,7 +152,7 @@
      });
    };

-    Alert.handleDismiss = function handleDismiss(alertInstance) {
+    Alert._handleDismiss = function _handleDismiss(alertInstance) {
      return function (event) {
        if (event) {
          event.preventDefault();
@ -259,16 +162,15 @@
      };
    };

-    _createClass$1(Alert, null, [{
-      key: "DATA_KEY",
-      // Getters
+    _createClass(Alert, null, [{
+      key: "VERSION",
      get: function get() {
-        return DATA_KEY;
+        return VERSION;
      }
    }]);

    return Alert;
-  }(BaseComponent);
+  }();
  /**
   * ------------------------------------------------------------------------
   * Data Api implementation
@ -276,31 +178,22 @@
   */


-  EventHandler__default['default'].on(document, EVENT_CLICK_DATA_API, SELECTOR_DISMISS, Alert.handleDismiss(new Alert()));
+  $(document).on(Event.CLICK_DATA_API, Selector.DISMISS, Alert._handleDismiss(new Alert()));
  /**
   * ------------------------------------------------------------------------
   * jQuery
   * ------------------------------------------------------------------------
-   * add .Alert to jQuery only if jQuery is present
   */

-  onDOMContentLoaded(function () {
-    var $ = getjQuery();
-    /* istanbul ignore if */
+  $.fn[NAME] = Alert._jQueryInterface;
+  $.fn[NAME].Constructor = Alert;

-    if ($) {
-      var JQUERY_NO_CONFLICT = $.fn[NAME];
-      $.fn[NAME] = Alert.jQueryInterface;
-      $.fn[NAME].Constructor = Alert;
-
-      $.fn[NAME].noConflict = function () {
-        $.fn[NAME] = JQUERY_NO_CONFLICT;
-        return Alert.jQueryInterface;
-      };
-    }
-  });
+  $.fn[NAME].noConflict = function () {
+    $.fn[NAME] = JQUERY_NO_CONFLICT;
+    return Alert._jQueryInterface;
+  };

  return Alert;

-})));
+}));
 //# sourceMappingURL=alert.js.map
--- a/js/dist/alert.js.map
+++ b/js/dist/alert.js.map
--- a/js/dist/button.js
+++ b/js/dist/button.js
@ -1,96 +1,32 @@
 /*!
-  * Bootstrap button.js v5.0.0-beta1 (https://getbootstrap.com/)
-  * Copyright 2011-2020 The Bootstrap Authors (https://github.com/twbs/bootstrap/graphs/contributors)
-  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
+  * Bootstrap button.js v4.3.1 (https://getbootstrap.com/)
+  * Copyright 2011-2019 The Bootstrap Authors (https://github.com/twbs/bootstrap/graphs/contributors)
+  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  */
 (function (global, factory) {
-  typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory(require('./dom/data.js'), require('./dom/event-handler.js')) :
-  typeof define === 'function' && define.amd ? define(['./dom/data', './dom/event-handler'], factory) :
-  (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.Button = factory(global.Data, global.EventHandler));
-}(this, (function (Data, EventHandler) { 'use strict';
+  typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory(require('jquery')) :
+  typeof define === 'function' && define.amd ? define(['jquery'], factory) :
+  (global = global || self, global.Button = factory(global.jQuery));
+}(this, function ($) { 'use strict';

-  function _interopDefaultLegacy (e) { return e && typeof e === 'object' && 'default' in e ? e : { 'default': e }; }
+  $ = $ && $.hasOwnProperty('default') ? $['default'] : $;

-  var Data__default = /*#__PURE__*/_interopDefaultLegacy(Data);
-  var EventHandler__default = /*#__PURE__*/_interopDefaultLegacy(EventHandler);
-
-  /**
-   * --------------------------------------------------------------------------
-   * Bootstrap (v5.0.0-beta1): util/index.js
-   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
-   * --------------------------------------------------------------------------
-   */
-
-  var getjQuery = function getjQuery() {
-    var _window = window,
-        jQuery = _window.jQuery;
-
-    if (jQuery && !document.body.hasAttribute('data-bs-no-jquery')) {
-      return jQuery;
+  function _defineProperties(target, props) {
+    for (var i = 0; i < props.length; i++) {
+      var descriptor = props[i];
+      descriptor.enumerable = descriptor.enumerable || false;
+      descriptor.configurable = true;
+      if ("value" in descriptor) descriptor.writable = true;
+      Object.defineProperty(target, descriptor.key, descriptor);
    }
+  }

-    return null;
-  };
+  function _createClass(Constructor, protoProps, staticProps) {
+    if (protoProps) _defineProperties(Constructor.prototype, protoProps);
+    if (staticProps) _defineProperties(Constructor, staticProps);
+    return Constructor;
+  }

-  var onDOMContentLoaded = function onDOMContentLoaded(callback) {
-    if (document.readyState === 'loading') {
-      document.addEventListener('DOMContentLoaded', callback);
-    } else {
-      callback();
-    }
-  };
-
-  var isRTL = document.documentElement.dir === 'rtl';
-
-  function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
-
-  function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
-  /**
-   * ------------------------------------------------------------------------
-   * Constants
-   * ------------------------------------------------------------------------
-   */
-
-  var VERSION = '5.0.0-beta1';
-
-  var BaseComponent = /*#__PURE__*/function () {
-    function BaseComponent(element) {
-      if (!element) {
-        return;
-      }
-
-      this._element = element;
-      Data__default['default'].setData(element, this.constructor.DATA_KEY, this);
-    }
-
-    var _proto = BaseComponent.prototype;
-
-    _proto.dispose = function dispose() {
-      Data__default['default'].removeData(this._element, this.constructor.DATA_KEY);
-      this._element = null;
-    }
-    /** Static */
-    ;
-
-    BaseComponent.getInstance = function getInstance(element) {
-      return Data__default['default'].getData(element, this.DATA_KEY);
-    };
-
-    _createClass(BaseComponent, null, [{
-      key: "VERSION",
-      get: function get() {
-        return VERSION;
-      }
-    }]);
-
-    return BaseComponent;
-  }();
-
-  function _defineProperties$1(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
-
-  function _createClass$1(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties$1(Constructor.prototype, protoProps); if (staticProps) _defineProperties$1(Constructor, staticProps); return Constructor; }
-
-  function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }
  /**
   * ------------------------------------------------------------------------
   * Constants
@ -98,40 +34,102 @@
   */

  var NAME = 'button';
+  var VERSION = '4.3.1';
  var DATA_KEY = 'bs.button';
  var EVENT_KEY = "." + DATA_KEY;
  var DATA_API_KEY = '.data-api';
-  var CLASS_NAME_ACTIVE = 'active';
-  var SELECTOR_DATA_TOGGLE = '[data-bs-toggle="button"]';
-  var EVENT_CLICK_DATA_API = "click" + EVENT_KEY + DATA_API_KEY;
-  /**
-   * ------------------------------------------------------------------------
-   * Class Definition
-   * ------------------------------------------------------------------------
-   */
+  var JQUERY_NO_CONFLICT = $.fn[NAME];
+  var ClassName = {
+    ACTIVE: 'active',
+    BUTTON: 'btn',
+    FOCUS: 'focus'
+  };
+  var Selector = {
+    DATA_TOGGLE_CARROT: '[data-toggle^="button"]',
+    DATA_TOGGLE: '[data-toggle="buttons"]',
+    INPUT: 'input:not([type="hidden"])',
+    ACTIVE: '.active',
+    BUTTON: '.btn'
+  };
+  var Event = {
+    CLICK_DATA_API: "click" + EVENT_KEY + DATA_API_KEY,
+    FOCUS_BLUR_DATA_API: "focus" + EVENT_KEY + DATA_API_KEY + " " + ("blur" + EVENT_KEY + DATA_API_KEY)
+    /**
+     * ------------------------------------------------------------------------
+     * Class Definition
+     * ------------------------------------------------------------------------
+     */

-  var Button = /*#__PURE__*/function (_BaseComponent) {
-    _inheritsLoose(Button, _BaseComponent);
+  };
+
+  var Button =
+  /*#__PURE__*/
+  function () {
+    function Button(element) {
+      this._element = element;
+    } // Getters

-    function Button() {
-      return _BaseComponent.apply(this, arguments) || this;
-    }

    var _proto = Button.prototype;

    // Public
    _proto.toggle = function toggle() {
-      // Toggle class and sync the `aria-pressed` attribute with the return value of the `.toggle()` method
-      this._element.setAttribute('aria-pressed', this._element.classList.toggle(CLASS_NAME_ACTIVE));
+      var triggerChangeEvent = true;
+      var addAriaPressed = true;
+      var rootElement = $(this._element).closest(Selector.DATA_TOGGLE)[0];
+
+      if (rootElement) {
+        var input = this._element.querySelector(Selector.INPUT);
+
+        if (input) {
+          if (input.type === 'radio') {
+            if (input.checked && this._element.classList.contains(ClassName.ACTIVE)) {
+              triggerChangeEvent = false;
+            } else {
+              var activeElement = rootElement.querySelector(Selector.ACTIVE);
+
+              if (activeElement) {
+                $(activeElement).removeClass(ClassName.ACTIVE);
+              }
+            }
+          }
+
+          if (triggerChangeEvent) {
+            if (input.hasAttribute('disabled') || rootElement.hasAttribute('disabled') || input.classList.contains('disabled') || rootElement.classList.contains('disabled')) {
+              return;
+            }
+
+            input.checked = !this._element.classList.contains(ClassName.ACTIVE);
+            $(input).trigger('change');
+          }
+
+          input.focus();
+          addAriaPressed = false;
+        }
+      }
+
+      if (addAriaPressed) {
+        this._element.setAttribute('aria-pressed', !this._element.classList.contains(ClassName.ACTIVE));
+      }
+
+      if (triggerChangeEvent) {
+        $(this._element).toggleClass(ClassName.ACTIVE);
+      }
+    };
+
+    _proto.dispose = function dispose() {
+      $.removeData(this._element, DATA_KEY);
+      this._element = null;
    } // Static
    ;

-    Button.jQueryInterface = function jQueryInterface(config) {
+    Button._jQueryInterface = function _jQueryInterface(config) {
      return this.each(function () {
-        var data = Data__default['default'].getData(this, DATA_KEY);
+        var data = $(this).data(DATA_KEY);

        if (!data) {
          data = new Button(this);
+          $(this).data(DATA_KEY, data);
        }

        if (config === 'toggle') {
@ -140,16 +138,15 @@
      });
    };

-    _createClass$1(Button, null, [{
-      key: "DATA_KEY",
-      // Getters
+    _createClass(Button, null, [{
+      key: "VERSION",
      get: function get() {
-        return DATA_KEY;
+        return VERSION;
      }
    }]);

    return Button;
-  }(BaseComponent);
+  }();
  /**
   * ------------------------------------------------------------------------
   * Data Api implementation
@ -157,41 +154,34 @@
   */


-  EventHandler__default['default'].on(document, EVENT_CLICK_DATA_API, SELECTOR_DATA_TOGGLE, function (event) {
+  $(document).on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE_CARROT, function (event) {
    event.preventDefault();
-    var button = event.target.closest(SELECTOR_DATA_TOGGLE);
-    var data = Data__default['default'].getData(button, DATA_KEY);
+    var button = event.target;

-    if (!data) {
-      data = new Button(button);
+    if (!$(button).hasClass(ClassName.BUTTON)) {
+      button = $(button).closest(Selector.BUTTON);
    }

-    data.toggle();
+    Button._jQueryInterface.call($(button), 'toggle');
+  }).on(Event.FOCUS_BLUR_DATA_API, Selector.DATA_TOGGLE_CARROT, function (event) {
+    var button = $(event.target).closest(Selector.BUTTON)[0];
+    $(button).toggleClass(ClassName.FOCUS, /^focus(in)?$/.test(event.type));
  });
  /**
   * ------------------------------------------------------------------------
   * jQuery
   * ------------------------------------------------------------------------
-   * add .Button to jQuery only if jQuery is present
   */

-  onDOMContentLoaded(function () {
-    var $ = getjQuery();
-    /* istanbul ignore if */
+  $.fn[NAME] = Button._jQueryInterface;
+  $.fn[NAME].Constructor = Button;

-    if ($) {
-      var JQUERY_NO_CONFLICT = $.fn[NAME];
-      $.fn[NAME] = Button.jQueryInterface;
-      $.fn[NAME].Constructor = Button;
-
-      $.fn[NAME].noConflict = function () {
-        $.fn[NAME] = JQUERY_NO_CONFLICT;
-        return Button.jQueryInterface;
-      };
-    }
-  });
+  $.fn[NAME].noConflict = function () {
+    $.fn[NAME] = JQUERY_NO_CONFLICT;
+    return Button._jQueryInterface;
+  };

  return Button;

-})));
+}));
 //# sourceMappingURL=button.js.map
--- a/js/dist/button.js.map
+++ b/js/dist/button.js.map
--- a/js/dist/carousel.js
+++ b/js/dist/carousel.js
--- a/Show more
+++ b/Show more