diff --git a/CHANGELOG.md b/CHANGELOG.md
index f947b9eb3..112be23ab 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+
+## [4.0.0] (2026-10-12)
+
+### Changed
+* Updated the plugin, package metadata, and WordPress readme to version 4.0.0 for the new release.
+
 ## [3.10.2] (2026-09-01)
 
 ### Added
diff --git a/package-lock.json b/package-lock.json
index e903c1676..09273dcaf 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "code-snippets",
-  "version": "3.10.2",
+  "version": "4.0.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "code-snippets",
-      "version": "3.10.2",
+      "version": "4.0.0",
       "license": "GPL-2.0-or-later",
       "dependencies": {
         "@codemirror/fold": "^0.19.4",
diff --git a/package.json b/package.json
index ee8f2bb5f..0a1665166 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "code-snippets",
   "description": "Manage code snippets running on a WordPress-powered site through a graphical interface.",
   "homepage": "https://codesnippets.pro",
-  "version": "3.10.2",
+  "version": "4.0.0",
   "main": "src/dist/edit.js",
   "directories": {
     "test": "tests"
diff --git a/src/code-snippets.php b/src/code-snippets.php
index 3391a3533..940595a10 100644
--- a/src/code-snippets.php
+++ b/src/code-snippets.php
@@ -8,11 +8,11 @@
  * License:      GPL-2.0-or-later
  * License URI:  license.txt
  * Text Domain:  code-snippets
- * Version:      3.10.2
+ * Version:      4.0.0
  * Requires PHP: 7.4
  * Requires at least: 5.5
  *
- * @version   3.10.2
+ * @version   4.0.0
  * @package   Code_Snippets
  * @author    Shea Bunge <shea@codesnippets.pro>
  * @copyright 2012-2026 Code Snippets Pro
@@ -37,7 +37,7 @@
 	 *
 	 * @const string
 	 */
-	define( 'CODE_SNIPPETS_VERSION', '3.10.2' );
+	define( 'CODE_SNIPPETS_VERSION', '4.0.0' );
 
 	/**
 	 * The full path to the main file of this plugin.
diff --git a/src/readme.txt b/src/readme.txt
index ed504b943..027d05173 100644
--- a/src/readme.txt
+++ b/src/readme.txt
@@ -4,7 +4,7 @@ Donate link: https://codesnippets.pro
 Tags: code, snippets, multisite, php, css
 License: GPL-2.0-or-later
 License URI: license.txt
-Stable tag: 3.10.2
+Stable tag: 4.0.0
 Requires at least: 5.5
 Tested up to: 7.1
 Requires PHP: 7.4
@@ -106,6 +106,12 @@ You can report security bugs found in the source code of this plugin through the
 
 == Changelog ==
 
+
+= 4.0.0 (2026-10-12) =
+
+**Changed**
+* Updated the plugin, package metadata, and WordPress readme to version 4.0.0 for the new release.
+
 = 3.10.2 (2026-09-01) =
 
 __Added__