V4 dev backports and updates

.eslintrc.json

@@ -42,17 +42,17 @@
     "unicorn/consistent-function-scoping": "off",
     "unicorn/explicit-length-check": "off",
     "unicorn/import-index": "off",
-    "unicorn/no-fn-reference-in-iterator": "off",
+    "unicorn/no-array-callback-reference": "off",
     "unicorn/no-for-loop": "off",
     "unicorn/no-null": "off",
     "unicorn/no-unused-properties": "error",
     "unicorn/no-useless-undefined": "off",
     "unicorn/prefer-array-find": "off",
-    "unicorn/prefer-dataset": "off",
+    "unicorn/prefer-dom-node-dataset": "off",
     "unicorn/prefer-includes": "off",
     "unicorn/prefer-math-trunc": "off",
-    "unicorn/prefer-node-append": "off",
-    "unicorn/prefer-node-remove": "off",
+    "unicorn/prefer-dom-node-append": "off",
+    "unicorn/prefer-dom-node-remove": "off",
     "unicorn/prefer-number-properties": "off",
     "unicorn/prefer-optional-catch-binding": "off",
     "unicorn/prefer-query-selector": "off",

.github/CONTRIBUTING.md

@@ -102,12 +102,12 @@ Example:
 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   | 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            |
 
 
 ## Feature requests
@@ -135,9 +135,9 @@ 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`
-directly!** Those files are automatically generated. You should edit the
-source files in [`/bootstrap/scss/`](https://github.com/twbs/bootstrap/tree/v4-dev/scss)
+**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/v4-dev/scss)
 and/or [`/bootstrap/js/src/`](https://github.com/twbs/bootstrap/tree/v4-dev/js/src) instead.
 
 Similarly, when contributing to Bootstrap's documentation, you should edit the

.github/workflows/browserstack.yml

@@ -12,13 +12,14 @@ jobs:
   browserstack:
     runs-on: ubuntu-latest
     if: github.repository == 'twbs/bootstrap' && (!contains(github.event.commits[0].message, '[ci skip]') && !contains(github.event.commits[0].message, '[skip ci]'))
+    timeout-minutes: 30
 
     steps:
       - name: Clone repository
         uses: actions/checkout@v2
 
       - name: Set up Node.js
-        uses: actions/setup-node@v1
+        uses: actions/setup-node@v2
         with:
           node-version: "${{ env.NODE }}"
 

.github/workflows/bundlewatch.yml

@@ -20,7 +20,7 @@ jobs:
         uses: actions/checkout@v2
 
       - name: Set up Node.js
-        uses: actions/setup-node@v1
+        uses: actions/setup-node@v2
         with:
           node-version: "${{ env.NODE }}"
 

.github/workflows/codeql.yml

@@ -22,15 +22,6 @@ jobs:
     steps:
       - name: Checkout repository
         uses: actions/checkout@v2
-        with:
-          # We must fetch at least the immediate parents so that if this is
-          # a pull request then we can checkout the head.
-          fetch-depth: 2
-
-      # If this run was triggered by a pull request event, then checkout
-      # the head of the pull request instead of the merge commit.
-      - run: git checkout HEAD^2
-        if: ${{ github.event_name == 'pull_request' }}
 
       # Initializes the CodeQL tools for scanning.
       - name: Initialize CodeQL

.github/workflows/css.yml

@@ -20,7 +20,7 @@ jobs:
         uses: actions/checkout@v2
 
       - name: Set up Node.js
-        uses: actions/setup-node@v1
+        uses: actions/setup-node@v2
         with:
           node-version: "${{ env.NODE }}"
 

.github/workflows/dart-sass.yml

@@ -20,7 +20,7 @@ jobs:
         uses: actions/checkout@v2
 
       - name: Set up Node.js
-        uses: actions/setup-node@v1
+        uses: actions/setup-node@v2
         with:
           node-version: "${{ env.NODE }}"
 

.github/workflows/docs.yml

@@ -20,7 +20,7 @@ jobs:
         uses: actions/checkout@v2
 
       - name: Set up Node.js
-        uses: actions/setup-node@v1
+        uses: actions/setup-node@v2
         with:
           node-version: "${{ env.NODE }}"
 

.github/workflows/js.yml

@@ -25,7 +25,7 @@ jobs:
         uses: actions/checkout@v2
 
       - name: Set up Node.js
-        uses: actions/setup-node@v1
+        uses: actions/setup-node@v2
         with:
           node-version: ${{ matrix.node }}
 

.github/workflows/lint.yml

@@ -20,7 +20,7 @@ jobs:
         uses: actions/checkout@v2
 
       - name: Set up Node.js
-        uses: actions/setup-node@v1
+        uses: actions/setup-node@v2
         with:
           node-version: "${{ env.NODE }}"
 

LICENSE

@@ -1,7 +1,7 @@
 The MIT License (MIT)
 
-Copyright (c) 2011-2020 Twitter, Inc.
-Copyright (c) 2011-2020 The Bootstrap Authors
+Copyright (c) 2011-2021 Twitter, Inc.
+Copyright (c) 2011-2021 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

@@ -113,7 +113,7 @@ Have a bug or a feature request? Please first read the [issue guidelines](https:
 
 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.
 
-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/src/search.js` file.
+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`.
 
 ### Running documentation locally
 
@@ -206,4 +206,4 @@ Thank you to all our backers! 🙏 [[Become a backer](https://opencollective.com
 
 ## Copyright and license
 
-Code and documentation copyright 2011-2020 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 2011-2021 the [Bootstrap Authors](https://github.com/twbs/bootstrap/graphs/contributors) and [Twitter, Inc.](https://twitter.com) Code released under the [MIT License](https://github.com/twbs/bootstrap/blob/main/LICENSE). Docs released under [Creative Commons](https://creativecommons.org/licenses/by/3.0/).

build/build-plugins.js

@@ -2,8 +2,8 @@
 
 /*!
  * Script to build our plugins to use them separately.
- * Copyright 2020 The Bootstrap Authors
- * Copyright 2020 Twitter, Inc.
+ * Copyright 2020-2021 The Bootstrap Authors
+ * Copyright 2020-2021 Twitter, Inc.
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
  */
 
@@ -19,8 +19,8 @@ const plugins = [
   babel({
     // Only transpile our source code
     exclude: 'node_modules/**',
-    // Inline the required helpers in each file
-    babelHelpers: 'inline'
+    // Include the helpers in each file, at most one copy of each
+    babelHelpers: 'bundled'
   })
 ]
 const bsPlugins = {

build/change-version.js

@@ -2,8 +2,8 @@
 
 /*!
  * Script to update version number references in the project.
- * Copyright 2017-2020 The Bootstrap Authors
- * Copyright 2017-2020 Twitter, Inc.
+ * Copyright 2017-2021 The Bootstrap Authors
+ * Copyright 2017-2021 Twitter, Inc.
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
  */
 

build/generate-sri.js

@@ -5,8 +5,8 @@
  * Remember to use the same vendor files as the CDN ones,
  * otherwise the hashes won't match!
  *
- * Copyright 2017-2020 The Bootstrap Authors
- * Copyright 2017-2020 Twitter, Inc.
+ * Copyright 2017-2021 The Bootstrap Authors
+ * Copyright 2017-2021 Twitter, Inc.
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
  */
 

build/vnu-jar.js

@@ -2,8 +2,8 @@
 
 /*!
  * Script to run vnu-jar if Java is available.
- * Copyright 2017-2020 The Bootstrap Authors
- * Copyright 2017-2020 Twitter, Inc.
+ * Copyright 2017-2021 The Bootstrap Authors
+ * Copyright 2017-2021 Twitter, Inc.
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
  */
 

build/zip-examples.js

@@ -3,7 +3,7 @@
 /*!
  * Script to create the built examples zip archive;
  * requires the `zip` command to be present!
- * Copyright 2020 The Bootstrap Authors
+ * Copyright 2020-2021 The Bootstrap Authors
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
  */
 

js/tests/browsers.js

@@ -5,21 +5,21 @@ const browsers = {
   safariMac: {
     base: 'BrowserStack',
     os: 'OS X',
-    os_version: 'High Sierra',
+    os_version: 'Catalina',
     browser: 'Safari',
     browser_version: 'latest'
   },
   chromeMac: {
     base: 'BrowserStack',
     os: 'OS X',
-    os_version: 'High Sierra',
+    os_version: 'Catalina',
     browser: 'Chrome',
     browser_version: 'latest'
   },
   firefoxMac: {
     base: 'BrowserStack',
     os: 'OS X',
-    os_version: 'High Sierra',
+    os_version: 'Catalina',
     browser: 'Firefox',
     browser_version: 'latest'
   },

nuget/bootstrap.nuspec

@@ -14,7 +14,7 @@
     <projectUrl>https://getbootstrap.com/</projectUrl>
     <icon>bootstrap.png</icon>
     <license type="file">LICENSE.txt</license>
-    <copyright>Copyright 2017-2020</copyright>
+    <copyright>Copyright 2017-2021</copyright>
     <requireLicenseAcceptance>false</requireLicenseAcceptance>
     <dependencies>
       <dependency id="jQuery" version="[3.0.0,4)" />

nuget/bootstrap.sass.nuspec

@@ -14,7 +14,7 @@
     <projectUrl>https://getbootstrap.com/</projectUrl>
     <icon>bootstrap.png</icon>
     <license type="file">LICENSE.txt</license>
-    <copyright>Copyright 2017-2020</copyright>
+    <copyright>Copyright 2017-2021</copyright>
     <requireLicenseAcceptance>false</requireLicenseAcceptance>
     <dependencies>
       <dependency id="jQuery" version="[3.0.0,4)" />