Release v4.4.0 (#29735)

justify-content:between ⇒ justify-content:space-between

.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' ]
+    }
+  }
 };

.browserslistrc

@@ -1,11 +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
-Firefox ESR
-iOS >= 12
-Safari >= 12
-not Explorer <= 11
+Chrome >= 45
+Firefox >= 38
+Edge >= 12
+Explorer >= 10
+iOS >= 9
+Safari >= 9
+Android >= 4.4
+Opera >= 30

.bundlewatch.config.json

@@ -1,66 +0,0 @@
-{
-  "files": [
-    {
-      "path": "./dist/css/bootstrap-grid.css",
-      "maxSize": "7.5 kB"
-    },
-    {
-      "path": "./dist/css/bootstrap-grid.min.css",
-      "maxSize": "6.5 kB"
-    },
-    {
-      "path": "./dist/css/bootstrap-reboot.css",
-      "maxSize": "2.5 kB"
-    },
-    {
-      "path": "./dist/css/bootstrap-reboot.min.css",
-      "maxSize": "2.5 kB"
-    },
-    {
-      "path": "./dist/css/bootstrap-utilities.css",
-      "maxSize": "7.75 kB"
-    },
-    {
-      "path": "./dist/css/bootstrap-utilities.min.css",
-      "maxSize": "7 kB"
-    },
-    {
-      "path": "./dist/css/bootstrap.css",
-      "maxSize": "26 kB"
-    },
-    {
-      "path": "./dist/css/bootstrap.min.css",
-      "maxSize": "24 kB"
-    },
-    {
-      "path": "./dist/js/bootstrap.bundle.js",
-      "maxSize": "42.5 kB"
-    },
-    {
-      "path": "./dist/js/bootstrap.bundle.min.js",
-      "maxSize": "22.75 kB"
-    },
-    {
-      "path": "./dist/js/bootstrap.esm.js",
-      "maxSize": "27.5 kB"
-    },
-    {
-      "path": "./dist/js/bootstrap.esm.min.js",
-      "maxSize": "18.5 kB"
-    },
-    {
-      "path": "./dist/js/bootstrap.js",
-      "maxSize": "28.25 kB"
-    },
-    {
-      "path": "./dist/js/bootstrap.min.js",
-      "maxSize": "16.25 kB"
-    }
-  ],
-  "ci": {
-    "trackBranches": [
-      "main",
-      "v4-dev"
-    ]
-  }
-}

.cspell.json

@@ -1,122 +0,0 @@
-{
-  "version": "0.2",
-  "words": [
-    "affordance",
-    "allowfullscreen",
-    "autohide",
-    "autohiding",
-    "autoplay",
-    "autoplays",
-    "blazingly",
-    "Blockquotes",
-    "Bootstrappers",
-    "borderless",
-    "Brotli",
-    "browserslist",
-    "browserslistrc",
-    "btncheck",
-    "btnradio",
-    "callout",
-    "callouts",
-    "clearfix",
-    "Codesniffer",
-    "combinator",
-    "Contentful",
-    "Cpath",
-    "Crossfade",
-    "crossfading",
-    "cssgrid",
-    "Csvg",
-    "Datalists",
-    "Deque",
-    "discoverability",
-    "docsearch",
-    "docsref",
-    "dropend",
-    "dropleft",
-    "dropright",
-    "dropstart",
-    "dropup",
-    "errorf",
-    "favicon",
-    "favicons",
-    "fieldsets",
-    "flexbox",
-    "fullscreen",
-    "getbootstrap",
-    "Grayscale",
-    "Hoverable",
-    "hreflang",
-    "hstack",
-    "jsdelivr",
-    "Jumpstart",
-    "keyframes",
-    "libera",
-    "libman",
-    "Libsass",
-    "lightboxes",
-    "Lowercased",
-    "markdownify",
-    "mediaqueries",
-    "minifiers",
-    "monospace",
-    "mouseleave",
-    "navbars",
-    "navs",
-    "Neue",
-    "noindex",
-    "Noto",
-    "offcanvas",
-    "offcanvases",
-    "Packagist",
-    "popperjs",
-    "prebuild",
-    "precompiled",
-    "prefersreducedmotion",
-    "prepended",
-    "printf",
-    "rects",
-    "relref",
-    "rgba",
-    "roboto",
-    "RTLCSS",
-    "ruleset",
-    "screenreaders",
-    "scrollbars",
-    "scrollspy",
-    "Segoe",
-    "srcset",
-    "stickied",
-    "Stylelint",
-    "subnav",
-    "tabbable",
-    "textareas",
-    "toggleable",
-    "topbar",
-    "touchend",
-    "twbs",
-    "unitless",
-    "unstylable",
-    "unstyled",
-    "Uppercased",
-    "urlize",
-    "vbtn",
-    "viewports",
-    "vstack",
-    "walkthroughs",
-    "WCAG",
-    "zindex"
-  ],
-  "language": "en-US",
-  "files": [
-    "**/*.md"
-  ],
-  "ignorePaths": [
-    ".cspell.json",
-    "dist/",
-    "*.min.*",
-    "**/*rtl*",
-    "**/tests/**"
-  ],
-  "useGitignore": true
-}

.editorconfig

@@ -9,3 +9,6 @@ indent_size = 2
 indent_style = space
 insert_final_newline = true
 trim_trailing_whitespace = true
+
+[*.md]
+trim_trailing_whitespace = false

.eslintignore

@@ -1,6 +1,6 @@
 **/*.min.js
 **/dist/
 **/vendor/
-/_site/
+/_gh_pages/
 /js/coverage/
-/site/static/sw.js
+/package.js

.eslintrc.json

@@ -1,65 +1,234 @@
 {
   "root": true,
-  "extends": [
-    "plugin:import/errors",
-    "plugin:import/warnings",
-    "plugin:unicorn/recommended",
-    "xo",
-    "xo/browser"
-  ],
+  "parser": "babel-eslint",
+  "env": {
+    "browser": true,
+    "es6": true
+  },
+  "extends": ["eslint:recommended"],
   "rules": {
-    "arrow-body-style": "off",
-    "capitalized-comments": "off",
-    "comma-dangle": [
-      "error",
-      "never"
-    ],
-    "indent": [
-      "error",
-      2,
-      {
-        "MemberExpression": "off",
-        "SwitchCase": 1
-      }
-    ],
-    "max-params": [
-      "warn",
-      5
-    ],
-    "multiline-ternary": [
-      "error",
-      "always-multiline"
-    ],
-    "new-cap": [
-      "error",
-      {
-        "properties": false
-      }
-    ],
+    // 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-console": "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",
+    "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",
-    "object-curly-spacing": [
-      "error",
-      "always"
-    ],
-    "operator-linebreak": [
-      "error",
-      "after"
-    ],
-    "semi": [
-      "error",
-      "never"
-    ],
-    "unicorn/explicit-length-check": "off",
-    "unicorn/no-array-callback-reference": "off",
-    "unicorn/no-array-method-this-argument": "off",
-    "unicorn/no-null": "off",
-    "unicorn/no-unused-properties": "error",
-    "unicorn/prefer-array-flat": "off",
-    "unicorn/prefer-dom-node-dataset": "off",
-    "unicorn/prefer-module": "off",
-    "unicorn/prefer-query-selector": "off",
-    "unicorn/prefer-spread": "off",
-    "unicorn/prevent-abbreviations": "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"
   }
 }

.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

.github/CONTRIBUTING.md

@@ -19,8 +19,8 @@ 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 +58,14 @@ 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 your HTML](https://html5.validator.nu/)** to ensure your
    problem isn't caused by a simple error in your own code.
 
 1. **Use the GitHub issue search** — check if the issue has already been
    reported.
 
 2. **Check if the issue has been fixed** — 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** — ideally create a [reduced test
    case](https://css-tricks.com/reduced-test-cases/) and a live example.
@@ -100,13 +100,14 @@ 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/                 |                                                          |
 
 
 ## Feature requests
@@ -123,25 +124,23 @@ 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/src/`](https://github.com/twbs/bootstrap/tree/master/js/src) 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/site/docs/` directory of the `master` branch](https://github.com/twbs/bootstrap/tree/master/site/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 +162,8 @@ 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 +182,7 @@ 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:
@@ -193,7 +192,7 @@ 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
@@ -217,7 +216,7 @@ includes code changes) and under the terms of the
 [Adhere to the Code Guide.](https://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 +224,7 @@ 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
 

.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/.github/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/)

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,17 @@
+---
+name: Bug report
+about: Tell us about a bug you may have identified in Bootstrap.
+
+---
+
+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/.github/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/)

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -1,62 +0,0 @@
-name: Report a bug
-description: Tell us about a bug or issue you may have identified in Bootstrap.
-title: "Provide a general summary of the issue"
-labels: [bug]
-assignees: "-"
-body:
-  - type: checkboxes
-    attributes:
-      label: Prerequisites
-      description: Take a couple minutes to help our maintainers work faster.
-      options:
-        - label: I have [searched](https://github.com/twbs/bootstrap/issues?utf8=%E2%9C%93&q=is%3Aissue) for duplicate or closed issues
-          required: true
-        - label: I have [validated](https://html5.validator.nu/) any HTML to avoid common problems
-          required: true
-        - label: I have read the [contributing guidelines](https://github.com/twbs/bootstrap/blob/main/.github/CONTRIBUTING.md)
-          required: true
-  - type: textarea
-    id: what-happened
-    attributes:
-      label: Describe the issue
-      description: Provide a summary of the issue and what you expected to happen, including specific steps to reproduce.
-    validations:
-      required: true
-  - type: textarea
-    id: reduced-test-case
-    attributes:
-      label: Reduced test cases
-      description: Include links [reduced test case](https://css-tricks.com/reduced-test-cases/) links or suggested fixes using CodePen ([v4 template](https://codepen.io/team/bootstrap/pen/yLabNQL) or [v5 template](https://codepen.io/team/bootstrap/pen/qBamdLj)).
-    validations:
-      required: true
-  - type: dropdown
-    id: os
-    attributes:
-      label: What operating system(s) are you seeing the problem on?
-      multiple: true
-      options:
-        - Windows
-        - macOS
-        - Android
-        - iOS
-        - Linux
-    validations:
-      required: true
-  - type: dropdown
-    id: browser
-    attributes:
-      label: What browser(s) are you seeing the problem on?
-      multiple: true
-      options:
-        - Chrome
-        - Safari
-        - Firefox
-        - Microsoft Edge
-        - Opera
-  - type: input
-    id: version
-    attributes:
-      label: What version of Bootstrap are you using?
-      placeholder: "e.g., v5.1.0 or v4.5.2"
-    validations:
-      required: true

.github/ISSUE_TEMPLATE/config.yml

@@ -1,4 +0,0 @@
-contact_links:
-  - name: Ask the community
-    url: https://github.com/twbs/bootstrap/discussions/new
-    about: Ask and discuss questions with other Bootstrap community members.

.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/.github/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

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,15 @@
+---
+name: Feature request
+about: Suggest an idea for a new feature in Bootstrap.
+
+---
+
+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/.github/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

.github/ISSUE_TEMPLATE/feature_request.yml

@@ -1,29 +0,0 @@
-name: Feature request
-description: Suggest new or updated features to include in Bootstrap.
-title: "Suggest a new feature"
-labels: [feature]
-assignees: []
-body:
-  - type: checkboxes
-    attributes:
-      label: Prerequisites
-      description: Take a couple minutes to help our maintainers work faster.
-      options:
-        - label: I have [searched](https://github.com/twbs/bootstrap/issues?utf8=%E2%9C%93&q=is%3Aissue) for duplicate or closed feature requests
-          required: true
-        - label: I have read the [contributing guidelines](https://github.com/twbs/bootstrap/blob/main/.github/CONTRIBUTING.md)
-          required: true
-  - type: textarea
-    id: proposal
-    attributes:
-      label: Proposal
-      description: Provide detailed information for what we should add, including relevant links to prior art, screenshots, or live demos whenever possible.
-    validations:
-      required: true
-  - type: textarea
-    id: motivation
-    attributes:
-      label: Motivation and context
-      description: Tell us why this change is needed or helpful, and what problems it may help solve.
-    validations:
-      required: true

.github/SUPPORT.md

@@ -7,5 +7,5 @@ See the [contributing guidelines](CONTRIBUTING.md) for sharing bug reports.
 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.libera.chat` server, in the `#bootstrap` channel.
-- Ask and explore Stack Overflow with the [`bootstrap-5`](https://stackoverflow.com/questions/tagged/bootstrap-5) tag.
+- Chat with fellow Bootstrappers in IRC. On the `irc.freenode.net` server, in the `##bootstrap` channel.
+- Ask and explore Stack Overflow with the [`bootstrap-4`](https://stackoverflow.com/questions/tagged/bootstrap-4) tag.

.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

.github/release-drafter.yml

@@ -1,57 +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: '🛠 Examples'
-    labels:
-      - 'examples'
-  - 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

.github/workflows/browserstack.yml

@@ -1,38 +0,0 @@
-name: BrowserStack
-
-on:
-  push:
-  workflow_dispatch:
-
-env:
-  FORCE_COLOR: 2
-  NODE: 16
-
-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: "${{ env.NODE }}"
-          cache: npm
-
-      - name: Install npm dependencies
-        run: npm ci
-
-      - name: Run dist
-        run: npm run dist
-
-      - name: Run BrowserStack tests
-        run: npm run js-test-cloud
-        env:
-          BROWSER_STACK_ACCESS_KEY: "${{ secrets.BROWSER_STACK_ACCESS_KEY }}"
-          BROWSER_STACK_USERNAME: "${{ secrets.BROWSER_STACK_USERNAME }}"
-          GITHUB_SHA: "${{ github.sha }}"

.github/workflows/bundlewatch.yml

@@ -1,38 +0,0 @@
-name: Bundlewatch
-
-on:
-  push:
-    branches-ignore:
-      - "dependabot/**"
-  pull_request:
-  workflow_dispatch:
-
-env:
-  FORCE_COLOR: 2
-  NODE: 16
-
-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: "${{ env.NODE }}"
-          cache: npm
-
-      - name: Install npm dependencies
-        run: npm ci
-
-      - name: Run dist
-        run: npm run dist
-
-      - name: Run bundlewatch
-        run: npm run bundlewatch
-        env:
-          BUNDLEWATCH_GITHUB_TOKEN: "${{ secrets.BUNDLEWATCH_GITHUB_TOKEN }}"
-          CI_BRANCH_BASE: main

.github/workflows/codeql.yml

@@ -1,38 +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
-      - "!dependabot/**"
-  schedule:
-    - cron: "0 2 * * 5"
-  workflow_dispatch:
-
-jobs:
-  analyze:
-    name: Analyze
-    runs-on: ubuntu-latest
-    permissions:
-      actions: read
-      contents: read
-      security-events: write
-
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v2
-
-      - name: Initialize CodeQL
-        uses: github/codeql-action/init@v1
-        with:
-          languages: "javascript"
-
-      - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@v1

.github/workflows/cspell.yml

@@ -1,28 +0,0 @@
-name: cspell
-
-on:
-  push:
-    branches-ignore:
-      - "dependabot/**"
-  pull_request:
-  workflow_dispatch:
-
-env:
-  FORCE_COLOR: 2
-  NODE: 16
-
-jobs:
-  cspell:
-    runs-on: ubuntu-latest
-
-    steps:
-      - name: Clone repository
-        uses: actions/checkout@v2
-
-      - name: Run cspell
-        uses: streetsidesoftware/cspell-action@v1
-        with:
-          config: ".cspell.json"
-          files: "**/*.md"
-          inline: error
-          incremental_files_only: false

.github/workflows/css.yml

@@ -1,32 +0,0 @@
-name: CSS
-
-on:
-  push:
-    branches-ignore:
-      - "dependabot/**"
-  pull_request:
-  workflow_dispatch:
-
-env:
-  FORCE_COLOR: 2
-  NODE: 16
-
-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 }}"
-          cache: npm
-
-      - name: Install npm dependencies
-        run: npm ci
-
-      - name: Build CSS
-        run: npm run css

.github/workflows/docs.yml

@@ -1,45 +0,0 @@
-name: Docs
-
-on:
-  push:
-    branches-ignore:
-      - "dependabot/**"
-  pull_request:
-  workflow_dispatch:
-
-env:
-  FORCE_COLOR: 2
-  NODE: 16
-
-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 }}"
-          cache: npm
-
-      - run: java -version
-
-      - name: Install npm dependencies
-        run: npm ci
-
-      - name: Build docs
-        run: npm run docs-build
-
-      - name: Validate HTML
-        run: npm run docs-vnu
-
-      - name: Run linkinator
-        uses: JustinBeckwith/linkinator-action@v1
-        with:
-          paths: _site
-          recurse: true
-          verbosity: error
-          skip: "^(?!http://localhost)"

.github/workflows/issue-close-require.yml

@@ -1,19 +0,0 @@
-name: Close Issue Awaiting Reply
-
-on:
-  schedule:
-    - cron: "0 0 * * *"
-
-jobs:
-  issue-close-require:
-    runs-on: ubuntu-latest
-    if: github.repository == 'twbs/bootstrap'
-    steps:
-      - name: awaiting reply
-        uses: actions-cool/issues-helper@v3
-        with:
-          actions: "close-issues"
-          labels: "awaiting-reply"
-          inactive-day: 14
-          body: |
-            As the issue was labeled with `awaiting-reply`, but there has been no response in 14 days, this issue will be closed. If you have any questions, you can comment/reply.

.github/workflows/issue-labeled.yml

@@ -1,19 +0,0 @@
-name: Issue Labeled
-
-on:
-  issues:
-    types: [labeled]
-
-jobs:
-  issue-labeled:
-    if: github.repository == 'twbs/bootstrap'
-    runs-on: ubuntu-latest
-    steps:
-      - name: awaiting reply
-        if: github.event.label.name == 'awaiting-reply'
-        uses: actions-cool/issues-helper@v3
-        with:
-          actions: "create-comment"
-          token: ${{ secrets.GITHUB_TOKEN }}
-          body: |
-            Hello @${{ github.event.issue.user.login }}. Bug reports must include a **live demo** of the issue. Per our [contributing guidelines](https://github.com/twbs/bootstrap/blob/main/.github/CONTRIBUTING.md), please create a reduced test case on [CodePen](https://codepen.io/) or [JS Bin](https://jsbin.com/) and report back with your link, Bootstrap version, and specific browser and Operating System details.

.github/workflows/js.yml

@@ -1,42 +0,0 @@
-name: JS Tests
-
-on:
-  push:
-    branches-ignore:
-      - "dependabot/**"
-  pull_request:
-  workflow_dispatch:
-
-env:
-  FORCE_COLOR: 2
-  NODE: 16
-
-jobs:
-  run:
-    name: JS Tests
-    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: ${{ env.NODE }}
-          cache: npm
-
-      - name: Install npm dependencies
-        run: npm ci
-
-      - name: Run dist
-        run: npm run js
-
-      - name: Run JS tests
-        run: npm run js-test
-
-      - name: Run Coveralls
-        uses: coverallsapp/github-action@1.1.3
-        with:
-          github-token: "${{ secrets.GITHUB_TOKEN }}"
-          path-to-lcov: "./js/coverage/lcov.info"

.github/workflows/lint.yml

@@ -1,32 +0,0 @@
-name: Lint
-
-on:
-  push:
-    branches-ignore:
-      - "dependabot/**"
-  pull_request:
-  workflow_dispatch:
-
-env:
-  FORCE_COLOR: 2
-  NODE: 16
-
-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 }}"
-          cache: npm
-
-      - name: Install npm dependencies
-        run: npm ci
-
-      - name: Lint
-        run: npm run lint

.github/workflows/node-sass.yml

@@ -1,31 +0,0 @@
-name: CSS (node-sass)
-
-on:
-  push:
-    branches-ignore:
-      - "dependabot/**"
-  pull_request:
-  workflow_dispatch:
-
-env:
-  FORCE_COLOR: 2
-  NODE: 16
-
-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

.github/workflows/release-notes.yml

@@ -1,16 +0,0 @@
-name: Release notes
-
-on:
-  push:
-    branches:
-      - main
-  workflow_dispatch:
-
-jobs:
-  update_release_draft:
-    runs-on: ubuntu-latest
-    if: github.repository == 'twbs/bootstrap'
-    steps:
-      - uses: release-drafter/release-drafter@v5
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/test.yml

@@ -0,0 +1,76 @@
+name: Tests
+on: [push, pull_request]
+env:
+  CI: true
+
+jobs:
+  run:
+    name: Node ${{ matrix.node }}
+    runs-on: ubuntu-latest
+
+    strategy:
+      fail-fast: false
+      matrix:
+        node: [6, 8, 12]
+
+    steps:
+      - name: Clone repository
+        uses: actions/checkout@v1
+        with:
+          fetch-depth: 3
+
+      - name: Set Node.js version
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node }}
+
+      - name: Set up Ruby 2.4
+        uses: actions/setup-ruby@v1
+        with:
+          ruby-version: 2.4.x
+
+      - name: Disable gem docs
+        run: 'echo "gem: --no-document" > ~/.gemrc'
+
+      - name: Set up Bundler
+        run: gem install bundler -v "~> 1.17"
+
+      - run: ruby --version
+      - run: gem --version
+      - run: bundle --version
+      - run: node --version
+      - run: npm --version
+      - run: java -version
+
+      - name: Install npm dependencies
+        run: npm install
+
+      - name: Install bundler dependencies
+        run: bundle install --deployment --jobs=3 --retry=3 --clean
+
+      - name: Run tests
+        run: npm test
+
+      - name: Run bundlesize
+        run: npm run bundlesize
+        if: matrix.node == 8
+        env:
+          BUNDLESIZE_GITHUB_TOKEN: "${{ secrets.BUNDLESIZE_GITHUB_TOKEN }}"
+
+      - name: Run BrowserStack tests
+        run: npm run js-test-cloud
+        if: matrix.node == 8 && github.repository == 'twbs/bootstrap' && github.event_name == 'push'
+        env:
+          BROWSER_STACK_ACCESS_KEY: "${{ secrets.BROWSER_STACK_ACCESS_KEY }}"
+          BROWSER_STACK_USERNAME: "${{ secrets.BROWSER_STACK_USERNAME }}"
+
+      - name: Run Link Checker
+        run: npm run check-broken-links
+        if: matrix.node == 8
+
+      - name: Run Coveralls
+        uses: coverallsapp/github-action@master
+        if: matrix.node == 8
+        with:
+          github-token: "${{ secrets.GITHUB_TOKEN }}"
+          path-to-lcov: "./js/coverage/lcov.info"

.gitignore

@@ -1,8 +1,14 @@
 # Ignore docs files
-/_site/
-# Hugo files
+/_gh_pages/
+/site/.jekyll-metadata
+/site/docs/**/dist/
+# Hugo folders
 /resources/
-/.hugo_build.lock
+
+# Ignore ruby/bundler files
+/.bundle/
+/vendor/
+/.ruby-version
 
 # Numerous always-ignore extensions
 *.diff
@@ -29,9 +35,6 @@
 *.sublime-workspace
 nbproject
 Thumbs.db
-/.vscode/
-# Local Netlify folder
-.netlify
 
 # Komodo
 .komodotools

.stylelintignore

@@ -1,5 +1,4 @@
 **/*.min.css
 **/dist/
 **/vendor/
-/_site/
-/js/coverage/
+/_gh_pages/

.stylelintrc

@@ -1,18 +1,9 @@
 {
   "extends": [
-    "stylelint-config-twbs-bootstrap"
+    "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",
@@ -20,12 +11,6 @@
       "border-bottom-left-radius",
       "transition"
     ],
-    "scss/dollar-variable-default": [
-      true,
-      {
-        "ignore": "local"
-      }
-    ],
-    "scss/selector-no-union-class-name": true
+    "function-blacklist": ["calc"]
   }
 }

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

Gemfile

@@ -0,0 +1,9 @@
+source 'https://rubygems.org'
+
+group :development, :test do
+  gem 'jekyll', '~> 3.8.6'
+  gem 'jekyll-redirect-from', '~> 0.15.0'
+  gem 'jekyll-sitemap', '~> 1.4.0'
+  gem 'jekyll-toc', '~> 0.11.0'
+  gem 'wdm', '~> 0.1.1', :install_if => Gem.win_platform?
+end

Gemfile.lock

@@ -0,0 +1,80 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    addressable (2.7.0)
+      public_suffix (>= 2.0.2, < 5.0)
+    colorator (1.1.0)
+    concurrent-ruby (1.1.5)
+    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 (1.11.2)
+    ffi (1.11.2-x64-mingw32)
+    forwardable-extended (2.6.0)
+    http_parser.rb (0.6.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
+    jekyll (3.8.6)
+      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 (0.15.0)
+      jekyll (>= 3.3, < 5.0)
+    jekyll-sass-converter (1.5.2)
+      sass (~> 3.4)
+    jekyll-sitemap (1.4.0)
+      jekyll (>= 3.7, < 5.0)
+    jekyll-toc (0.11.0)
+      nokogiri (~> 1.9)
+    jekyll-watch (2.2.1)
+      listen (~> 3.0)
+    kramdown (1.17.0)
+    liquid (4.0.3)
+    listen (3.2.0)
+      rb-fsevent (~> 0.10, >= 0.10.3)
+      rb-inotify (~> 0.9, >= 0.9.10)
+    mercenary (0.3.6)
+    mini_portile2 (2.4.0)
+    nokogiri (1.10.5)
+      mini_portile2 (~> 2.4.0)
+    nokogiri (1.10.5-x64-mingw32)
+      mini_portile2 (~> 2.4.0)
+    pathutil (0.16.2)
+      forwardable-extended (~> 2.6)
+    public_suffix (4.0.1)
+    rb-fsevent (0.10.3)
+    rb-inotify (0.10.0)
+      ffi (~> 1.0)
+    rouge (3.13.0)
+    safe_yaml (1.0.5)
+    sass (3.7.4)
+      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 (~> 3.8.6)
+  jekyll-redirect-from (~> 0.15.0)
+  jekyll-sitemap (~> 1.4.0)
+  jekyll-toc (~> 0.11.0)
+  wdm (~> 0.1.1)
+
+BUNDLED WITH
+   1.17.3

LICENSE

@@ -1,7 +1,7 @@
 The MIT License (MIT)
 
-Copyright (c) 2011-2022 Twitter, Inc.
-Copyright (c) 2011-2022 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

README.md

@@ -1,6 +1,6 @@
 <p align="center">
   <a href="https://getbootstrap.com/">
-    <img src="https://getbootstrap.com/docs/5.1/assets/brand/bootstrap-logo-shadow.png" alt="Bootstrap logo" width="200" height="165">
+    <img src="https://getbootstrap.com/docs/4.4/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/5.1/"><strong>Explore Bootstrap docs »</strong></a>
+  <a href="https://getbootstrap.com/docs/4.4/"><strong>Explore Bootstrap docs »</strong></a>
   <br>
   <br>
-  <a href="https://github.com/twbs/bootstrap/issues/new?assignees=-&labels=bug&template=bug_report.yml">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?assignees=&labels=feature&template=feature_request.yml">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 5
-
-Our default branch is for development of our 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)
@@ -46,115 +41,88 @@ Our default branch is for development of our Bootstrap 5 release. Head to the [`
 
 Several quick start options are available:
 
-- [Download the latest release](https://github.com/twbs/bootstrap/archive/v5.1.3.zip)
+- [Download the latest release.](https://github.com/twbs/bootstrap/archive/v4.4.0.zip)
 - Clone the repo: `git clone https://github.com/twbs/bootstrap.git`
 - Install with [npm](https://www.npmjs.com/): `npm install bootstrap`
-- Install with [yarn](https://yarnpkg.com/): `yarn add bootstrap`
-- Install with [Composer](https://getcomposer.org/): `composer require twbs/bootstrap:5.1.3`
+- Install with [yarn](https://yarnpkg.com/): `yarn add bootstrap@4.4.0`
+- Install with [Composer](https://getcomposer.org/): `composer require twbs/bootstrap:4.4.0`
 - 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/5.1/getting-started/introduction/) for information on the framework contents, templates, examples, and more.
+Read the [Getting started page](https://getbootstrap.com/docs/4.4/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://img.shields.io/github/workflow/status/twbs/bootstrap/JS%20Tests/main?label=JS%20Tests&logo=github)](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)
-[![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://github.com/twbs/bootstrap/workflows/Tests/badge.svg)](https://github.com/twbs/bootstrap/actions?workflow=Tests)
+[![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
 
-Within the download you'll find the following directories and files, logically grouping common assets and providing both compiled and minified variations.
+Within the download you'll find the following directories and files, logically grouping common assets and providing both compiled and minified variations. You'll see something like this:
 
-<details>
-  <summary>Download contents</summary>
+```text
+bootstrap/
+└── 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
+```
 
-  ```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
-  ```
-</details>
-
-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/4.4/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/4.4/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
 
@@ -165,11 +133,11 @@ You can find all our previous releases docs on <https://getbootstrap.com/docs/ve
 
 ## 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
@@ -179,8 +147,8 @@ Get updates on Bootstrap's development and chat with the project maintainers and
 - Follow [@getbootstrap on Twitter](https://twitter.com/getbootstrap).
 - 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.libera.chat` server, in the `#bootstrap` channel.
-- Implementation help may be found at Stack Overflow (tagged [`bootstrap-5`](https://stackoverflow.com/questions/tagged/bootstrap-5)).
+- 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-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.
 
 
@@ -188,7 +156,7 @@ Get updates on Bootstrap's development and chat with the project maintainers and
 
 For transparency into our release cycle and in striving to maintain backward compatibility, Bootstrap is maintained under [the Semantic Versioning guidelines](https://semver.org/). Sometimes we screw up, but we adhere to those rules whenever possible.
 
-See [the Releases section of our GitHub project](https://github.com/twbs/bootstrap/releases) for changelogs for each release version of Bootstrap. Release announcement posts on [the official Bootstrap blog](https://blog.getbootstrap.com/) contain summaries of the most noteworthy changes made in each release. [Release planning](https://github.com/twbs/release#upcoming-release-schedule) takes place in a separate project.
+See [the Releases section of our GitHub project](https://github.com/twbs/bootstrap/releases) for changelogs for each release version of Bootstrap. Release announcement posts on [the official Bootstrap blog](https://blog.getbootstrap.com/) contain summaries of the most noteworthy changes made in each release.
 
 
 ## Creators
@@ -207,41 +175,35 @@ See [the Releases section of our GitHub project](https://github.com/twbs/bootstr
 ## Thanks
 
 <a href="https://www.browserstack.com/">
-  <img src="https://live.browserstack.com/images/opensource/browserstack-logo.svg" alt="BrowserStack" width="192" height="42">
+  <img src="https://live.browserstack.com/images/opensource/browserstack-logo.svg" alt="BrowserStack Logo" width="192" height="42">
 </a>
 
 Thanks to [BrowserStack](https://www.browserstack.com/) for providing the infrastructure that allows us to test in real browsers!
 
-<a href="https://www.netlify.com/">
-  <img src="https://www.netlify.com/v3/img/components/full-logo-light.svg" alt="Netlify" width="147" height="40">
-</a>
-
-Thanks to [Netlify](https://www.netlify.com/) for providing us with Deploy Previews!
-
-
-## 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 2011–2022 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://creativecommons.org/licenses/by/3.0/).

_config.yml

@@ -0,0 +1,69 @@
+# 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/4.4/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/4.4/assets/brand/bootstrap-social.png
+social_logo_path:   /docs/4.4/assets/brand/bootstrap-social-logo.png
+
+# Custom variables
+current_version:      4.4.0
+current_ruby_version: 4.4.0
+docs_version:         4.4
+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"
+icons:                "https://icons.getbootstrap.com"
+
+download:
+  source:           "https://github.com/twbs/bootstrap/archive/v4.4.0.zip"
+  dist:             "https://github.com/twbs/bootstrap/releases/download/v4.4.0/bootstrap-4.4.0-dist.zip"
+
+cdn:
+  # See https://www.srihash.org for info on how to generate the hashes
+  css:              "https://stackpath.bootstrapcdn.com/bootstrap/4.4.0/css/bootstrap.min.css"
+  css_hash:         "sha384-SI27wrMjH3ZZ89r4o+fGIJtnzkAnFs3E4qz9DIYioCQ5l9Rd/7UAa8DHcaL8jkWt"
+  js:               "https://stackpath.bootstrapcdn.com/bootstrap/4.4.0/js/bootstrap.min.js"
+  js_hash:          "sha384-3qaqj0lc6sV/qpzrc1N5DC6i1VRn/HyX4qdPaiEFbn54VjQBEU341pvjz7Dv3n6P"
+  js_bundle:        "https://stackpath.bootstrapcdn.com/bootstrap/4.4.0/js/bootstrap.bundle.min.js"
+  js_bundle_hash:   "sha384-Iep5TjrwnXOp2AdreAjhlprhxI5Ix8Y3I/zJd1tNQZQmonaE3i6fTdrvIG9YjOWl"
+  jquery:           "https://code.jquery.com/jquery-3.4.1.slim.min.js"
+  jquery_hash:      "sha384-J6qa4849blE2+poT4WnyKhv5vZF5SrPo0iEjwBvKU7imGFAV0wwj1yYfoRSJoZ+n"
+  popper:           "https://cdn.jsdelivr.net/npm/popper.js@1.16.0/dist/umd/popper.min.js"
+  popper_hash:      "sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo"
+
+toc:
+  min_level:        2
+  max_level:        4
+  no_toc_section_class:
+    - "bd-callout"
+    - "bd-example"

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"
   }
 }

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)
   */`
 }
 

build/build-plugins.js

@@ -1,104 +1,85 @@
-#!/usr/bin/env node
-
 /*!
  * Script to build our plugins to use them separately.
- * Copyright 2020-2022 The Bootstrap Authors
- * Copyright 2020-2022 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 globby = require('globby')
-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 sourcePath = path.resolve(__dirname, '../js/src/').replace(/\\/g, '/')
-const jsFiles = globby.sync(sourcePath + '/**/*.js')
-
-// Array which holds the resolved plugins
-const resolvedPlugins = []
-
-// Trims the "js" extension and uppercases => first letter, hyphens, backslashes & slashes
-const filenameToEntity = filename => filename.replace('.js', '')
-  .replace(/(?:^|-|\/|\\)[a-z]/g, str => str.slice(-1).toUpperCase())
-
-for (const file of jsFiles) {
-  resolvedPlugins.push({
-    src: file.replace('.js', ''),
-    dist: file.replace('src', 'dist'),
-    fileName: path.basename(file),
-    className: filenameToEntity(path.basename(file))
-    // safeClassName: filenameToEntity(path.relative(sourcePath, file))
+const TEST    = process.env.NODE_ENV === 'test'
+const plugins = [
+  babel({
+    exclude: 'node_modules/**', // Only transpile our source code
+    externalHelpersWhitelist: [ // Include only required helpers
+      'defineProperties',
+      'createClass',
+      'inheritsLoose',
+      'defineProperty',
+      'objectSpread2'
+    ]
   })
+]
+const bsPlugins = {
+  Alert: path.resolve(__dirname, '../js/src/alert.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'),
+  Dropdown: path.resolve(__dirname, '../js/src/dropdown.js'),
+  Modal: path.resolve(__dirname, '../js/src/modal.js'),
+  Popover: path.resolve(__dirname, '../js/src/popover.js'),
+  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'),
+  Util: path.resolve(__dirname, '../js/src/util.js')
 }
+const rootPath = TEST ? '../js/coverage/dist/' : '../js/dist/'
 
-const build = async plugin => {
-  const globals = {}
+function build(plugin) {
+  console.log(`Building ${plugin} plugin...`)
 
-  const bundle = await rollup.rollup({
-    input: plugin.src,
-    plugins: [
-      babel({
-        // Only transpile our source code
-        exclude: 'node_modules/**',
-        // Include the helpers in each file, at most one copy of each
-        babelHelpers: 'bundled'
-      })
-    ],
-    external(source) {
-      // Pattern to identify local files
-      const pattern = /^(\.{1,2})\//
-
-      // It's not a local file, e.g a Node.js package
-      if (!pattern.test(source)) {
-        globals[source] = source
-        return true
-      }
-
-      const usedPlugin = resolvedPlugins.find(plugin => {
-        return plugin.src.includes(source.replace(pattern, ''))
-      })
-
-      if (!usedPlugin) {
-        throw new Error(`Source ${source} is not mapped!`)
-      }
-
-      // We can change `Index` with `UtilIndex` etc if we use
-      // `safeClassName` instead of `className` everywhere
-      globals[path.normalize(usedPlugin.src)] = usedPlugin.className
-      return true
-    }
-  })
-
-  await bundle.write({
-    banner: banner(plugin.fileName),
-    format: 'umd',
-    name: plugin.className,
-    sourcemap: true,
-    globals,
-    generatedCode: 'es2015',
-    file: plugin.dist
-  })
-
-  console.log(`Built ${plugin.className}`)
-}
-
-(async () => {
-  try {
-    const basename = path.basename(__filename)
-    const timeLabel = `[${basename}] finished`
-
-    console.log('Building individual plugins...')
-    console.time(timeLabel)
-
-    await Promise.all(Object.values(resolvedPlugins).map(plugin => build(plugin)))
-
-    console.timeEnd(timeLabel)
-  } catch (error) {
-    console.error(error)
-    process.exit(1)
+  const external = ['jquery', 'popper.js']
+  const globals = {
+    jquery: 'jQuery', // Ensure we use jQuery which is always available even in noConflict mode
+    'popper.js': 'Popper'
   }
-})()
+
+  // Do not bundle Util in plugins
+  if (plugin !== 'Util') {
+    external.push(bsPlugins.Util)
+    globals[bsPlugins.Util] = 'Util'
+  }
+
+  // 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}`))
+  })
+}
+
+Object.keys(bsPlugins).forEach((plugin) => build(plugin))

build/change-version.js

@@ -2,80 +2,105 @@
 
 /*!
  * Script to update version number references in the project.
- * Copyright 2017-2022 The Bootstrap Authors
- * Copyright 2017-2022 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'
 
-const fs = require('fs').promises
+const fs = require('fs')
 const path = require('path')
-const globby = require('globby')
+const sh = require('shelljs')
 
-const VERBOSE = process.argv.includes('--verbose')
-const DRY_RUN = process.argv.includes('--dry') || process.argv.includes('--dry-run')
-
-// These are the filetypes we only care about replacing the version
-const GLOB = [
-  '**/*.{css,html,js,json,md,scss,txt,yml}'
-]
-const GLOBBY_OPTIONS = {
-  cwd: path.join(__dirname, '..'),
-  gitignore: true
-}
+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, '$$')
+  return string.replace(/[$]/g, '$$')
 }
 
-async function replaceRecursively(file, oldVersion, newVersion) {
-  const originalString = await fs.readFile(file, 'utf8')
-  const newString = originalString.replace(
-    new RegExp(regExpQuote(oldVersion), 'g'), regExpQuoteReplacement(newVersion)
-  )
+const DRY_RUN = false
 
-  // No need to move any further if the strings are identical
-  if (originalString === newString) {
+function walkAsync(directory, excludedDirectories, fileCallback, errback) {
+  if (excludedDirectories.has(path.parse(directory).base)) {
     return
   }
-
-  if (VERBOSE) {
-    console.log(`FILE: ${file}`)
-  }
-
-  if (DRY_RUN) {
-    return
-  }
-
-  await fs.writeFile(file, newString, 'utf8')
+  fs.readdir(directory, (err, names) => {
+    if (err) {
+      errback(err)
+      return
+    }
+    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()) {
+          process.nextTick(fileCallback, filepath)
+        }
+      })
+    })
+  })
 }
 
-async function main(args) {
-  let [oldVersion, newVersion] = args
+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)
+    }
+  }
+  walkAsync(directory, excludedDirectories, updateFile, (err) => {
+    console.error('ERROR while traversing directory!:')
+    console.error(err)
+    process.exit(1)
+  })
+}
 
-  if (!oldVersion || !newVersion) {
-    console.error('USAGE: change-version old_version new_version [--verbose] [--dry[-run]]')
+function main(args) {
+  if (args.length !== 2) {
+    console.error('USAGE: change-version old_version new_version')
     console.error('Got arguments:', args)
     process.exit(1)
   }
-
-  // Strip any leading `v` from arguments because otherwise we will end up with duplicate `v`s
-  [oldVersion, newVersion] = [oldVersion, newVersion].map(arg => arg.startsWith('v') ? arg.slice(1) : arg)
-
-  try {
-    const files = await globby(GLOB, GLOBBY_OPTIONS)
-
-    await Promise.all(files.map(file => replaceRecursively(file, oldVersion, newVersion)))
-  } catch (error) {
-    console.error(error)
-    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 whitelist is how we avoid modifying binary files
+    '',
+    '.css',
+    '.html',
+    '.js',
+    '.json',
+    '.md',
+    '.nuspec',
+    '.scss',
+    '.txt',
+    '.yml'
+  ])
+  replaceRecursively('.', EXCLUDED_DIRS, INCLUDED_EXTENSIONS, oldVersion, newVersion)
 }
 
 main(process.argv.slice(2))

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 2017-2022 The Bootstrap Authors
- * Copyright 2017-2022 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'
@@ -42,15 +40,19 @@ 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'
   }
 ]
 
-for (const file of files) {
-  fs.readFile(file.file, 'utf8', (error, data) => {
-    if (error) {
-      throw error
+files.forEach((file) => {
+  fs.readFile(file.file, 'utf8', (err, data) => {
+    if (err) {
+      throw err
     }
 
     const algo = 'sha384'
@@ -59,6 +61,6 @@ for (const file of files) {
 
     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)
   })
-}
+})

build/postcss.config.js

@@ -1,19 +1,14 @@
 'use strict'
 
-const mapConfig = {
-  inline: false,
-  annotation: true,
-  sourcesContent: true
-}
-
-module.exports = context => {
-  return {
-    map: context.file.dirname.includes('examples') ? false : mapConfig,
-    plugins: {
-      autoprefixer: {
-        cascade: false
-      },
-      rtlcss: context.env === 'RTL'
+module.exports = (ctx) => ({
+  map: ctx.file.dirname.includes('examples') ? false : {
+    inline: false,
+    annotation: true,
+    sourcesContent: true
+  },
+  plugins: {
+    autoprefixer: {
+      cascade: false
     }
   }
-}
+})

build/rollup.config.js

@@ -1,57 +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 fileDestination = `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',
+      'objectSpread2'
+    ]
   })
 ]
 const globals = {
-  '@popperjs/core': 'Popper'
+  jquery: 'jQuery', // Ensure we use jQuery which is always available even in noConflict mode
+  'popper.js': 'Popper'
 }
 
 if (BUNDLE) {
-  fileDestination += '.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"',
-      preventAssignment: true
-    }),
-    nodeResolve()
-  )
+  delete globals['popper.js']
+  plugins.push(resolve())
 }
 
-const rollupConfig = {
-  input: path.resolve(__dirname, `../js/index.${ESM ? 'esm' : 'umd'}.js`),
+module.exports = {
+  input: path.resolve(__dirname, '../js/src/index.js'),
   output: {
     banner,
-    file: path.resolve(__dirname, `../dist/js/${fileDestination}.js`),
-    format: ESM ? 'esm' : 'umd',
+    file: path.resolve(__dirname, `../dist/js/${fileDest}`),
+    format: 'umd',
     globals,
-    generatedCode: 'es2015'
+    name: 'bootstrap'
   },
   external,
   plugins
 }
-
-if (!ESM) {
-  rollupConfig.output.name = 'bootstrap'
-}
-
-module.exports = rollupConfig

build/ship.sh

@@ -0,0 +1,52 @@
+#!/usr/bin/env bash
+#
+# Usage
+# ---------------
+# 1. Clone second version of Bootstrap in sibling directory named `bs-docs`.
+# 2. Within `bs-docs` copy, switch to `gh-pages` branch.
+# 3. Pull latest, re-bundle, re-npm.
+# 4. Run script.
+
+red=$'\e[1;31m'
+green=$'\e[1;32m'
+#blue=$'\e[1;34m'
+magenta=$'\e[1;35m'
+#cyan=$'\e[1;36m'
+end=$'\e[0m'
+
+# Get current version from package.json
+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
+  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 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 $end
+npm run release-version "$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
+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
+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

build/svgo.yml

@@ -0,0 +1,60 @@
+# Usage:
+# install svgo globally: `npm i -g svgo`
+# svgo --config=build/svgo.yml --input=foo.svg
+
+# https://github.com/svg/svgo/blob/master/docs/how-it-works/en.md
+# replace default config
+
+multipass: true
+#full: true
+
+# https://github.com/svg/svgo/blob/master/lib/svgo/js2svg.js#L6 for more config options
+
+js2svg:
+  pretty: true
+  indent: 2
+
+plugins:
+  # remove this with IE 11 is no longer supported
+  - addAttributesToSVGElement:
+      attributes:
+        - focusable: false
+  - cleanupAttrs: true
+  - cleanupEnableBackground: true
+  - cleanupIDs: true
+  - cleanupListOfValues: true
+  - cleanupNumericValues: true
+  - collapseGroups: true
+  - convertColors: true
+  - convertPathData: true
+  - convertShapeToPath: true
+  - convertStyleToAttrs: true
+  - convertTransform: true
+  - inlineStyles: true
+  - mergePaths: true
+  - minifyStyles: true
+  - moveElemsAttrsToGroup: true
+  - moveGroupAttrsToElems: true
+  - removeAttrs:
+      attrs:
+        - "data-name"
+  - removeComments: true
+  - removeDesc: true
+  - removeDoctype: true
+  - removeEditorsNSData: true
+  - removeEmptyAttrs: true
+  - removeEmptyContainers: true
+  - removeEmptyText: true
+  - removeHiddenElems: true
+  - removeMetadata: true
+  - removeNonInheritableGroupAttrs: true
+  - removeTitle: false
+  - removeUnknownsAndDefaults:
+      keepRoleAttr: true
+  - removeUnusedNS: true
+  - removeUselessDefs: true
+  - removeUselessStrokeAndFill: true
+  - removeViewBox: false
+  - removeXMLNS: false
+  - removeXMLProcInst: true
+  - sortAttrs: true

build/vnu-jar.js

@@ -2,45 +2,53 @@
 
 /*!
  * Script to run vnu-jar if Java is available.
- * Copyright 2017-2022 The Bootstrap Authors
- * Copyright 2017-2022 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'
 
-const { execFile, spawn } = require('child_process')
+const childProcess = require('child_process')
 const vnu = require('vnu-jar')
 
-execFile('java', ['-version'], (error, stdout, stderr) => {
+childProcess.exec('java -version', (error, stdout, stderr) => {
   if (error) {
     console.error('Skipping vnu-jar test; Java is missing.')
     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 string regular expressions.
+  // Also note that the ignores are regular expressions.
   const ignores = [
     // "autocomplete" is included in <button> and checkboxes and radio <input>s due to
     // Firefox's non-standard autocomplete behavior - see https://bugzilla.mozilla.org/show_bug.cgi?id=654072
     'Attribute “autocomplete” is only allowed when the input type is.*',
     'Attribute “autocomplete” not allowed on element “button” at this point.',
-    // Per https://www.w3.org/TR/html-aria/#docconformance having "aria-disabled" on a link is
-    // NOT RECOMMENDED, but it's still valid - we explain in the docs that it's not ideal,
-    // and offer more robust alternatives, but also need to show a less-than-ideal example
-    'An “aria-disabled” attribute whose value is “true” should not be specified on an “a” element that has an “href” attribute.'
+    // Markup used in Components → Forms → Layout → Form grid → Horizontal form is currently invalid,
+    // but used this way due to lack of support for flexbox layout on <fieldset> element in most browsers
+    'Element “legend” not allowed as child of element “div” in this context.*',
+    // 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 “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”.'
   ].join('|')
 
   const args = [
     '-jar',
-    `"${vnu}"`,
+    vnu,
     '--asciiquotes',
     '--skip-non-html',
+    // Ignore the language code warnings
+    '--no-langdetect',
     '--Werror',
     `--filterpattern "${ignores}"`,
-    '_site/',
+    '_gh_pages/',
     'js/tests/'
   ]
 
@@ -49,7 +57,7 @@ execFile('java', ['-version'], (error, stdout, stderr) => {
     args.splice(0, 0, '-Xss512k')
   }
 
-  return spawn('java', args, {
+  return childProcess.spawn('java', args, {
     shell: true,
     stdio: 'inherit'
   })

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 2020-2022 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-${pkg.version}-examples`
-const rootDocsDir = '_site'
-const docsDir = `${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', `${docsDir}/examples/*`, distFolder)
-
-for (const file of cssFiles) {
-  sh.cp('-f', `${docsDir}/dist/css/${file}`, `${distFolder}/assets/dist/css/`)
-}
-
-for (const file of jsFiles) {
-  sh.cp('-f', `${docsDir}/dist/js/${file}`, `${distFolder}/assets/dist/js/`)
-}
-
-for (const file of imgFiles) {
-  sh.cp('-f', `${docsDir}/assets/brand/${file}`, `${distFolder}/assets/brand/`)
-}
-
-sh.rm(`${distFolder}/index.html`)
-
-// get all examples' HTML files
-for (const file of sh.find(`${distFolder}/**/*.html`)) {
-  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)

bundlesize.config.json

@@ -0,0 +1,44 @@
+{
+  "files": [
+    {
+      "path": "./dist/css/bootstrap-grid.css",
+      "maxSize": "7 kB"
+    },
+    {
+      "path": "./dist/css/bootstrap-grid.min.css",
+      "maxSize": "6.25 kB"
+    },
+    {
+      "path": "./dist/css/bootstrap-reboot.css",
+      "maxSize": "2 kB"
+    },
+    {
+      "path": "./dist/css/bootstrap-reboot.min.css",
+      "maxSize": "2 kB"
+    },
+    {
+      "path": "./dist/css/bootstrap.css",
+      "maxSize": "25.25 kB"
+    },
+    {
+      "path": "./dist/css/bootstrap.min.css",
+      "maxSize": "23.25 kB"
+    },
+    {
+      "path": "./dist/js/bootstrap.bundle.js",
+      "maxSize": "47.50 kB"
+    },
+    {
+      "path": "./dist/js/bootstrap.bundle.min.js",
+      "maxSize": "22.25 kB"
+    },
+    {
+      "path": "./dist/js/bootstrap.js",
+      "maxSize": "25 kB"
+    },
+    {
+      "path": "./dist/js/bootstrap.min.js",
+      "maxSize": "15.5 kB"
+    }
+  ]
+}

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"
   }

config.yml

@@ -1,89 +0,0 @@
-languageCode:           "en"
-title:                  "Bootstrap"
-baseURL:                "https://getbootstrap.com"
-
-security:
-  enableInlineShortcodes: true
-  funcs:
-    getenv:
-      - ^HUGO_
-      - NETLIFY
-
-markup:
-  goldmark:
-    renderer:
-      unsafe:           true
-  highlight:
-    noClasses:          false
-  tableOfContents:
-    startLevel:         2
-    endLevel:           6
-
-buildDrafts:            true
-buildFuture:            true
-
-enableRobotsTXT:        true
-metaDataFormat:         "yaml"
-disableKinds:           ["404", "taxonomy", "term", "RSS"]
-
-publishDir:             "_site"
-
-module:
-  mounts:
-    - source:           dist
-      target:           static/docs/5.1/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/5.1/assets/img/favicons/apple-touch-icon.png
-      target:           static/apple-touch-icon.png
-    - source:           site/static/docs/5.1/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/5.1/assets/brand/bootstrap-social.png
-  social_logo_path:     /docs/5.1/assets/brand/bootstrap-social-logo.png
-
-  current_version:      "5.1.3"
-  current_ruby_version: "5.1.3"
-  docs_version:         "5.1"
-  rfs_version:          "v9.0.6"
-  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/v5.1.3.zip"
-    dist:               "https://github.com/twbs/bootstrap/releases/download/v5.1.3/bootstrap-5.1.3-dist.zip"
-    dist_examples:      "https://github.com/twbs/bootstrap/releases/download/v5.1.3/bootstrap-5.1.3-examples.zip"
-
-  cdn:
-    # See https://www.srihash.org for info on how to generate the hashes
-    css:              "https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css"
-    css_hash:         "sha384-1BmE4kWBq78iYhFldvKuhfTAU6auU8tT94WrHftjDbrCEXSU1oBoqyl2QvZ6jIW3"
-    css_rtl:          "https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.rtl.min.css"
-    css_rtl_hash:     "sha384-+qdLaIRZfNu4cVPK/PxJJEy0B0f3Ugv8i482AKY7gwXwhaCroABd086ybrVKTa0q"
-    js:               "https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/js/bootstrap.min.js"
-    js_hash:          "sha384-QJHtvGhmr9XOIpI6YVutG+2QOK9T+ZnN4kzFN1RtK3zEFEIsxhlmWl5/YESvpZ13"
-    js_bundle:        "https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/js/bootstrap.bundle.min.js"
-    js_bundle_hash:   "sha384-ka7Sk0Gln4gmtz2MlQnikT1wXgYsOg+OMhuP+IlRH9sENBO0LRn5q+8nbTov4+1p"
-    popper:           "https://cdn.jsdelivr.net/npm/@popperjs/core@2.11.2/dist/umd/popper.min.js"
-    popper_hash:      "sha384-q9CRHqZndzlxGLOj+xrdLDJa9ittGte1NksRmgJKeCV9DrM7Kz868XYqsKWPpAmn"
-
-  anchors:
-    min: 2
-    max: 5

dist/css/bootstrap-reboot.css

@@ -1,150 +1,51 @@
 /*!
- * Bootstrap Reboot v5.1.3 (https://getbootstrap.com/)
- * Copyright 2011-2021 The Bootstrap Authors
- * Copyright 2011-2021 Twitter, Inc.
- * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
+ * Bootstrap Reboot v4.4.0 (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)
  */
-:root {
-  --bs-blue: #0d6efd;
-  --bs-indigo: #6610f2;
-  --bs-purple: #6f42c1;
-  --bs-pink: #d63384;
-  --bs-red: #dc3545;
-  --bs-orange: #fd7e14;
-  --bs-yellow: #ffc107;
-  --bs-green: #198754;
-  --bs-teal: #20c997;
-  --bs-cyan: #0dcaf0;
-  --bs-white: #fff;
-  --bs-gray: #6c757d;
-  --bs-gray-dark: #343a40;
-  --bs-gray-100: #f8f9fa;
-  --bs-gray-200: #e9ecef;
-  --bs-gray-300: #dee2e6;
-  --bs-gray-400: #ced4da;
-  --bs-gray-500: #adb5bd;
-  --bs-gray-600: #6c757d;
-  --bs-gray-700: #495057;
-  --bs-gray-800: #343a40;
-  --bs-gray-900: #212529;
-  --bs-primary: #0d6efd;
-  --bs-secondary: #6c757d;
-  --bs-success: #198754;
-  --bs-info: #0dcaf0;
-  --bs-warning: #ffc107;
-  --bs-danger: #dc3545;
-  --bs-light: #f8f9fa;
-  --bs-dark: #212529;
-  --bs-primary-rgb: 13, 110, 253;
-  --bs-secondary-rgb: 108, 117, 125;
-  --bs-success-rgb: 25, 135, 84;
-  --bs-info-rgb: 13, 202, 240;
-  --bs-warning-rgb: 255, 193, 7;
-  --bs-danger-rgb: 220, 53, 69;
-  --bs-light-rgb: 248, 249, 250;
-  --bs-dark-rgb: 33, 37, 41;
-  --bs-white-rgb: 255, 255, 255;
-  --bs-black-rgb: 0, 0, 0;
-  --bs-body-color-rgb: 33, 37, 41;
-  --bs-body-bg-rgb: 255, 255, 255;
-  --bs-font-sans-serif: 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";
-  --bs-font-monospace: SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
-  --bs-gradient: linear-gradient(180deg, rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0));
-  --bs-body-font-family: var(--bs-font-sans-serif);
-  --bs-body-font-size: 1rem;
-  --bs-body-font-weight: 400;
-  --bs-body-line-height: 1.5;
-  --bs-body-color: #212529;
-  --bs-body-bg: #fff;
-}
-
 *,
 *::before,
 *::after {
   box-sizing: border-box;
 }
 
-@media (prefers-reduced-motion: no-preference) {
-  :root {
-    scroll-behavior: smooth;
-  }
-}
-
-body {
-  margin: 0;
-  font-family: var(--bs-body-font-family);
-  font-size: var(--bs-body-font-size);
-  font-weight: var(--bs-body-font-weight);
-  line-height: var(--bs-body-line-height);
-  color: var(--bs-body-color);
-  text-align: var(--bs-body-text-align);
-  background-color: var(--bs-body-bg);
+html {
+  font-family: sans-serif;
+  line-height: 1.15;
   -webkit-text-size-adjust: 100%;
   -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
 }
 
+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:not(:focus-visible) {
+  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 {
@@ -153,10 +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;
 }
@@ -167,11 +70,6 @@ address {
   line-height: inherit;
 }
 
-ol,
-ul {
-  padding-left: 2rem;
-}
-
 ol,
 ul,
 dl {
@@ -191,7 +89,7 @@ dt {
 }
 
 dd {
-  margin-bottom: 0.5rem;
+  margin-bottom: .5rem;
   margin-left: 0;
 }
 
@@ -205,39 +103,42 @@ 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]) {
+  color: inherit;
+  text-decoration: none;
+}
+
+a:not([href]):hover {
   color: inherit;
   text-decoration: none;
 }
@@ -246,94 +147,58 @@ pre,
 code,
 kbd,
 samp {
-  font-family: var(--bs-font-monospace);
+  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 {
   border-radius: 0;
 }
 
-button:focus:not(:focus-visible) {
-  outline: 0;
+button:focus {
+  outline: 1px dotted;
+  outline: 5px auto -webkit-focus-ring-color;
 }
 
 input,
@@ -348,44 +213,56 @@ textarea {
 }
 
 button,
-select {
-  text-transform: none;
+input {
+  overflow: visible;
 }
 
-[role=button] {
-  cursor: pointer;
+button,
+select {
+  text-transform: none;
 }
 
 select {
   word-wrap: normal;
 }
-select:disabled {
-  opacity: 1;
-}
-
-[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;
 }
 
@@ -397,63 +274,33 @@ 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;
-}
-
-::-webkit-file-upload-button {
-  font: inherit;
-}
-
-::file-selector-button {
-  font: inherit;
+[type="search"]::-webkit-search-decoration {
+  -webkit-appearance: none;
 }
 
 ::-webkit-file-upload-button {
@@ -465,21 +312,16 @@ 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 */

dist/css/bootstrap-reboot.rtl.css

@@ -1,482 +0,0 @@
-/*!
- * Bootstrap Reboot v5.1.3 (https://getbootstrap.com/)
- * Copyright 2011-2021 The Bootstrap Authors
- * Copyright 2011-2021 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)
- */
-:root {
-  --bs-blue: #0d6efd;
-  --bs-indigo: #6610f2;
-  --bs-purple: #6f42c1;
-  --bs-pink: #d63384;
-  --bs-red: #dc3545;
-  --bs-orange: #fd7e14;
-  --bs-yellow: #ffc107;
-  --bs-green: #198754;
-  --bs-teal: #20c997;
-  --bs-cyan: #0dcaf0;
-  --bs-white: #fff;
-  --bs-gray: #6c757d;
-  --bs-gray-dark: #343a40;
-  --bs-gray-100: #f8f9fa;
-  --bs-gray-200: #e9ecef;
-  --bs-gray-300: #dee2e6;
-  --bs-gray-400: #ced4da;
-  --bs-gray-500: #adb5bd;
-  --bs-gray-600: #6c757d;
-  --bs-gray-700: #495057;
-  --bs-gray-800: #343a40;
-  --bs-gray-900: #212529;
-  --bs-primary: #0d6efd;
-  --bs-secondary: #6c757d;
-  --bs-success: #198754;
-  --bs-info: #0dcaf0;
-  --bs-warning: #ffc107;
-  --bs-danger: #dc3545;
-  --bs-light: #f8f9fa;
-  --bs-dark: #212529;
-  --bs-primary-rgb: 13, 110, 253;
-  --bs-secondary-rgb: 108, 117, 125;
-  --bs-success-rgb: 25, 135, 84;
-  --bs-info-rgb: 13, 202, 240;
-  --bs-warning-rgb: 255, 193, 7;
-  --bs-danger-rgb: 220, 53, 69;
-  --bs-light-rgb: 248, 249, 250;
-  --bs-dark-rgb: 33, 37, 41;
-  --bs-white-rgb: 255, 255, 255;
-  --bs-black-rgb: 0, 0, 0;
-  --bs-body-color-rgb: 33, 37, 41;
-  --bs-body-bg-rgb: 255, 255, 255;
-  --bs-font-sans-serif: 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";
-  --bs-font-monospace: SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
-  --bs-gradient: linear-gradient(180deg, rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0));
-  --bs-body-font-family: var(--bs-font-sans-serif);
-  --bs-body-font-size: 1rem;
-  --bs-body-font-weight: 400;
-  --bs-body-line-height: 1.5;
-  --bs-body-color: #212529;
-  --bs-body-bg: #fff;
-}
-
-*,
-*::before,
-*::after {
-  box-sizing: border-box;
-}
-
-@media (prefers-reduced-motion: no-preference) {
-  :root {
-    scroll-behavior: smooth;
-  }
-}
-
-body {
-  margin: 0;
-  font-family: var(--bs-body-font-family);
-  font-size: var(--bs-body-font-size);
-  font-weight: var(--bs-body-font-weight);
-  line-height: var(--bs-body-line-height);
-  color: var(--bs-body-color);
-  text-align: var(--bs-body-text-align);
-  background-color: var(--bs-body-bg);
-  -webkit-text-size-adjust: 100%;
-  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
-}
-
-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] {
-  -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: var(--bs-font-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:not(:focus-visible) {
-  outline: 0;
-}
-
-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;
-}
-select:disabled {
-  opacity: 1;
-}
-
-[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;
-}
-
-::-webkit-file-upload-button {
-  font: inherit;
-}
-
-::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 */