Release v4.3.0 (#28228)

* Prep for v4.3.0

* More updates for v4.3.0.

* rerun to build docs source map

site/docs/4.3/about/overview.md

@@ -5,7 +5,7 @@ description: Learn more about the team maintaining Bootstrap, how and why the pr
 group: about
 redirect_from:
   - "/about/"
-  - "/docs/4.2/about/"
+  - "/docs/4.3/about/"
 ---
 
 ## Team

site/docs/4.3/assets/js/docs.min.js

@@ -16,7 +16,7 @@
  * JavaScript for Bootstrap's docs (https://getbootstrap.com/)
  * Copyright 2011-2019 The Bootstrap Authors
  * Copyright 2011-2019 Twitter, Inc.
- * Licensed under the Creative Commons Attribution 3.0 Unported License. For
- * details, see https://creativecommons.org/licenses/by/3.0/.
+ * Licensed under the Creative Commons Attribution 3.0 Unported License.
+ * For details, see https://creativecommons.org/licenses/by/3.0/.
  */
 (function(i){"use strict";i(function(){i(".tooltip-demo").tooltip({selector:'[data-toggle="tooltip"]',container:"body"});i('[data-toggle="popover"]').popover();i(".toast").toast({autohide:false}).toast("show");i(".tooltip-test").tooltip();i(".popover-test").popover();i('.bd-example-indeterminate [type="checkbox"]').prop("indeterminate",true);i('.bd-content [href="#"]').click(function(t){t.preventDefault()});i("#exampleModal").on("show.bs.modal",function(t){var e=i(t.relatedTarget);var n=e.data("whatever");var o=i(this);o.find(".modal-title").text("New message to "+n);o.find(".modal-body input").val(n)});i(".bd-toggle-animated-progress").on("click",function(){i(this).siblings(".progress").find(".progress-bar-striped").toggleClass("progress-bar-animated")});i("figure.highlight, div.highlight").each(function(){var t='<div class="bd-clipboard"><button type="button" class="btn-clipboard" title="Copy to clipboard">Copy</button></div>';i(this).before(t);i(".btn-clipboard").tooltip().on("mouseleave",function(){i(this).tooltip("hide")})});var t=new ClipboardJS(".btn-clipboard",{target:function(t){return t.parentNode.nextElementSibling}});t.on("success",function(t){i(t.trigger).attr("title","Copied!").tooltip("_fixTitle").tooltip("show").attr("title","Copy to clipboard").tooltip("_fixTitle");t.clearSelection()});t.on("error",function(t){var e=/Mac/i.test(navigator.userAgent)?"⌘":"Ctrl-";var n="Press "+e+"C to copy";i(t.trigger).attr("title",n).tooltip("_fixTitle").tooltip("show").attr("title","Copy to clipboard").tooltip("_fixTitle")});anchors.options={icon:"#"};anchors.add(".bd-content > h2, .bd-content > h3, .bd-content > h4, .bd-content > h5");i(".bd-content").children("h2, h3, h4, h5").wrapInner('<span class="bd-content-title"></span>');bsCustomFileInput.init()})})(jQuery);(function(){"use strict";function t(){var t=/MSIE ([0-9.]+)/.exec(window.navigator.userAgent);if(t===null){return null}var e=parseInt(t[1],10);var n=Math.floor(e);return n}function e(){var t=new Function("/*@cc_on return @_jscript_version; @*/")();if(typeof t==="undefined"){return 11}if(t<9){return 8}return t}var n=window.navigator.userAgent;if(n.indexOf("Opera")>-1||n.indexOf("Presto")>-1){return}var o=t();if(o===null){return}var i=e();if(o!==i){window.alert("WARNING: You appear to be using IE"+i+" in IE"+o+" emulation mode.\nIE emulation modes can behave significantly differently from ACTUAL older versions of IE.\nPLEASE DON'T FILE BOOTSTRAP BUGS based on testing in IE emulation modes!")}})();(function(){"use strict";if(!window.docsearch){return}var t=document.getElementById("search-input");var e=t.getAttribute("data-docs-version");function o(){var t=window.location;var e=t.origin;if(!e){var n=t.port?":"+t.port:"";e=t.protocol+"//"+t.hostname+n}return e}window.docsearch({apiKey:"5990ad008512000bba2cf951ccf0332f",indexName:"bootstrap",inputSelector:"#search-input",algoliaOptions:{facetFilters:["version:"+e]},transformData:function(t){return t.map(function(t){var e=o();var n=/^https?:\/\/getbootstrap\.com/;t.url=e.match(n)?t.url:t.url.replace(n,"");if(t.anchor==="content"){t.url=t.url.replace(/#content$/,"");t.anchor=null}return t})},debug:false})})();

site/docs/4.3/components/alerts.md

@@ -5,7 +5,7 @@ description: Provide contextual feedback messages for typical user actions with
 group: components
 redirect_from:
   - "/components/"
-  - "/docs/4.2/components/"
+  - "/docs/4.3/components/"
 toc: true
 ---