diff --git a/AUTHORS b/AUTHORS
index 72c1eaa757..13e0c7f48a 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -799,6 +799,7 @@ ryu-sato
 sabaca
 sach.gupta
 Sachin Gupta
+sahil.mahna
 Sam Lee
 Sam Rawlins
 Samuel Ainsworth
@@ -964,6 +965,7 @@ Yash-Singh1
 Yassin N. Hassan
 YNH Webdev
 yoongu
+yoyoyodog123
 Yunchi Luo
 Yuvi Panda
 Yvonnick Esnault
diff --git a/CHANGELOG.md b/CHANGELOG.md
index a4f6c93166..ab3ca34ee5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+## 5.65.12 (2023-02-20)
+
+### Bug fixes
+
+[python mode](https://codemirror.net/5/mode/python/): Add new built-ins and keywords.
+
 ## 5.65.11 (2022-12-20)
 
 ### Bug fixes
diff --git a/doc/manual.html b/doc/manual.html
index 6598c9f52d..20ff731d01 100644
--- a/doc/manual.html
+++ b/doc/manual.html
@@ -70,7 +70,7 @@
 <section class=first id=overview>
     <h2 style="position: relative">
       User manual and reference guide
-      <span style="color: #888; font-size: 1rem; position: absolute; right: 0; bottom: 0">version 5.65.11</span>
+      <span style="color: #888; font-size: 1rem; position: absolute; right: 0; bottom: 0">version 5.65.12</span>
     </h2>
 
     <p>CodeMirror is a code-editor component that can be embedded in
diff --git a/doc/releases.html b/doc/releases.html
index 20948676a4..3e86d6e9eb 100644
--- a/doc/releases.html
+++ b/doc/releases.html
@@ -34,6 +34,12 @@ <h2>Version 6.x</h2>
 
   <h2>Version 5.x</h2>
 
+  <p class="rel">20-12-2022: <a href="https://codemirror.net/5/codemirror-5.65.12.zip">Version 5.65.12</a>:</p>
+
+  <ul class="rel-note">
+    <li><a href="https://codemirror.net/5/mode/python/">python mode</a>: Add new built-ins and keywords.</li>
+  </ul>
+
   <p class="rel">20-12-2022: <a href="https://codemirror.net/5/codemirror-5.65.11.zip">Version 5.65.11</a>:</p>
 
   <ul class="rel-note">
diff --git a/index.html b/index.html
index bd697e9c72..ea7dc4ffb8 100644
--- a/index.html
+++ b/index.html
@@ -92,7 +92,7 @@ <h2>This is CodeMirror</h2>
   </script>
 
   <div class=actions>
-    Get the current version: <a href="https://codemirror.net/5/codemirror.zip">5.65.11</a>.<br>
+    Get the current version: <a href="https://codemirror.net/5/codemirror.zip">5.65.12</a>.<br>
     You can see the <a href="https://github.com/codemirror/codemirror5" title="GitHub repository">code</a>,<br>
     read the <a href="doc/releases.html">release notes</a>,<br>
     or study the <a href="doc/manual.html">user manual</a>.
diff --git a/package.json b/package.json
index b2082c799d..6bdd100884 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "codemirror",
-  "version": "5.65.11",
+  "version": "5.65.12",
   "main": "lib/codemirror.js",
   "style": "lib/codemirror.css",
   "author": {
diff --git a/src/edit/main.js b/src/edit/main.js
index 7cbb5330b4..2becd5c766 100644
--- a/src/edit/main.js
+++ b/src/edit/main.js
@@ -66,4 +66,4 @@ import { addLegacyProps } from "./legacy.js"
 
 addLegacyProps(CodeMirror)
 
-CodeMirror.version = "5.65.11"
+CodeMirror.version = "5.65.12"