diff --git a/README.md b/README.md
index 224d9d1a..f96fa376 100644
--- a/README.md
+++ b/README.md
@@ -6,10 +6,12 @@
 
 DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG.
 
-It's also very simple to use and get started with. DOMPurify was [started in February 2014](https://github.com/cure53/DOMPurify/commit/a630922616927373485e0e787ab19e73e3691b2b) and, meanwhile, has reached version 2.4.2.
+It's also very simple to use and get started with. DOMPurify was [started in February 2014](https://github.com/cure53/DOMPurify/commit/a630922616927373485e0e787ab19e73e3691b2b) and, meanwhile, has reached version 2.4.3.
 
 DOMPurify is written in JavaScript and works in all modern browsers (Safari (10+), Opera (15+), Internet Explorer (10+), Edge, Firefox and Chrome - as well as almost anything else using Blink or WebKit). It doesn't break on MSIE6 or other legacy browsers. It either uses [a fall-back](#what-about-older-browsers-like-msie8) or simply does nothing.
 
+**Note that DOMPurify v2.4.3 is the final version supporting MSIE. For important security updates compatible with MSIE, please use the 2.x branch.**
+
 Our automated tests cover [19 different browsers](https://github.com/cure53/DOMPurify/blob/main/test/karma.custom-launchers.config.js#L5) right now, more to come. We also cover Node.js v14.x, v16.x, v17.x and v18.x, running DOMPurify on [jsdom](https://github.com/jsdom/jsdom). Older Node versions are known to work as well, but hey... no guarantees.
 
 DOMPurify is written by security people who have vast background in web attacks and XSS. Fear not. For more details please also read about our [Security Goals & Threat Model](https://github.com/cure53/DOMPurify/wiki/Security-Goals-&-Threat-Model). Please, read it. Like, really.
diff --git a/bower.json b/bower.json
index 649cd368..726a3e60 100644
--- a/bower.json
+++ b/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "DOMPurify",
-  "version": "2.4.2",
+  "version": "2.4.3",
   "homepage": "https://github.com/cure53/DOMPurify",
   "author": "Cure53 <info@cure53.de>",
   "description": "A DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG",
diff --git a/dist/purify.cjs.js b/dist/purify.cjs.js
index 9daadccf..75b865e1 100644
--- a/dist/purify.cjs.js
+++ b/dist/purify.cjs.js
@@ -1,4 +1,4 @@
-/*! @license DOMPurify 2.4.2 | (c) Cure53 and other contributors | Released under the Apache license 2.0 and Mozilla Public License 2.0 | github.com/cure53/DOMPurify/blob/2.4.2/LICENSE */
+/*! @license DOMPurify 2.4.3 | (c) Cure53 and other contributors | Released under the Apache license 2.0 and Mozilla Public License 2.0 | github.com/cure53/DOMPurify/blob/2.4.3/LICENSE */
 
 'use strict';
 
@@ -324,7 +324,7 @@ function createDOMPurify() {
    */
 
 
-  DOMPurify.version = '2.4.2';
+  DOMPurify.version = '2.4.3';
   /**
    * Array of elements that DOMPurify removed during sanitation.
    * Empty if nothing was removed.
diff --git a/dist/purify.es.js b/dist/purify.es.js
index 2f260a97..12f45dda 100644
--- a/dist/purify.es.js
+++ b/dist/purify.es.js
@@ -1,4 +1,4 @@
-/*! @license DOMPurify 2.4.2 | (c) Cure53 and other contributors | Released under the Apache license 2.0 and Mozilla Public License 2.0 | github.com/cure53/DOMPurify/blob/2.4.2/LICENSE */
+/*! @license DOMPurify 2.4.3 | (c) Cure53 and other contributors | Released under the Apache license 2.0 and Mozilla Public License 2.0 | github.com/cure53/DOMPurify/blob/2.4.3/LICENSE */
 
 function _typeof(obj) {
   "@babel/helpers - typeof";
@@ -322,7 +322,7 @@ function createDOMPurify() {
    */
 
 
-  DOMPurify.version = '2.4.2';
+  DOMPurify.version = '2.4.3';
   /**
    * Array of elements that DOMPurify removed during sanitation.
    * Empty if nothing was removed.
diff --git a/dist/purify.js b/dist/purify.js
index 4d53fc2c..84ef48a7 100644
--- a/dist/purify.js
+++ b/dist/purify.js
@@ -1,4 +1,4 @@
-/*! @license DOMPurify 2.4.2 | (c) Cure53 and other contributors | Released under the Apache license 2.0 and Mozilla Public License 2.0 | github.com/cure53/DOMPurify/blob/2.4.2/LICENSE */
+/*! @license DOMPurify 2.4.3 | (c) Cure53 and other contributors | Released under the Apache license 2.0 and Mozilla Public License 2.0 | github.com/cure53/DOMPurify/blob/2.4.3/LICENSE */
 
 (function (global, factory) {
   typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
@@ -328,7 +328,7 @@
      */
 
 
-    DOMPurify.version = '2.4.2';
+    DOMPurify.version = '2.4.3';
     /**
      * Array of elements that DOMPurify removed during sanitation.
      * Empty if nothing was removed.
diff --git a/dist/purify.min.js b/dist/purify.min.js
index 4600ebb7..16638f0e 100644
--- a/dist/purify.min.js
+++ b/dist/purify.min.js
@@ -1,3 +1,3 @@
-/*! @license DOMPurify 2.4.2 | (c) Cure53 and other contributors | Released under the Apache license 2.0 and Mozilla Public License 2.0 | github.com/cure53/DOMPurify/blob/2.4.2/LICENSE */
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diff --git a/package.json b/package.json
index d2a8d459..ee515a23 100644
--- a/package.json
+++ b/package.json
@@ -98,7 +98,7 @@
   },
   "name": "dompurify",
   "description": "DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. It's written in JavaScript and works in all modern browsers (Safari, Opera (15+), Internet Explorer (10+), Firefox and Chrome - as well as almost anything else using Blink or WebKit). DOMPurify is written by security people who have vast background in web attacks and XSS. Fear not.",
-  "version": "2.4.2",
+  "version": "2.4.3",
   "directories": {
     "test": "test"
   },
diff --git a/website/index.html b/website/index.html
index 3e6ae7ff..b8f3e48f 100644
--- a/website/index.html
+++ b/website/index.html
@@ -2,7 +2,7 @@
 <html>
     <head>
         <meta charset="UTF-8">
-        <title>DOMPurify 2.4.2 "Queen Bee"</title>
+        <title>DOMPurify 2.4.3 "Final Countdown"</title>
         <script src="../dist/purify.min.js"></script>
         <!-- we don't actually need it - just to demo and test the $(html) sanitation -->
         <script src="//code.jquery.com/jquery-3.2.0.min.js"></script>
@@ -23,7 +23,7 @@
         </script>
     </head>
     <body>
-        <h4>DOMPurify 2.4.2 "Queen Bee"</h4>
+        <h4>DOMPurify 2.4.3 "Final Countdown"</h4>
         <p>
             <a href="http://badge.fury.io/js/dompurify" rel="nofollow"><img alt="npm version" src="https://badge.fury.io/js/dompurify.svg"></a>  
             <a target="_blank" rel="noopener noreferrer" href="https://github.com/cure53/DOMPurify/workflows/Build%20and%20Test/badge.svg?branch=main"><img src="https://github.com/cure53/DOMPurify/workflows/Build%20and%20Test/badge.svg?branch=main" alt="Build and Test"></a>