diff --git a/CHANGELOG.md b/CHANGELOG.md
index 009edd7..120364f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,16 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
+## [2.1.0]
+
+### Changed
+
+- Core Framework now requires WordPress 6.6 or newer. The block editor integration is built against the `react-jsx-runtime` script that WordPress first ships in 6.6. Sites on WordPress 6.0 to 6.5 should stay on Core Framework 2.0.2.
+
+### Fixed
+
+- Fixed the block editor going blank with the Core Framework Gutenberg integration enabled. The editor script was loaded with an outdated, hard-coded dependency list that left out WordPress's `react-jsx-runtime`, so rendering the Core Framework class panel threw on an undefined `ReactJSXRuntime` and took the whole editor down. The script now loads the dependencies its build declares.
+
 ## [2.0.2] - 2026-08-28
 
 ### Fixed
diff --git a/README.md b/README.md
index 099879c..d115938 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ Core Framework is a visual CSS framework and design-token builder for the web, W
 [![GitHub stars](https://img.shields.io/github/stars/corebunch/core-framework?style=flat&label=stars&labelColor=171923&color=ffd43b)](https://github.com/corebunch/core-framework/stargazers)
 [![License: MIT](https://img.shields.io/badge/license-MIT-5c62ff?labelColor=171923)](LICENSE)
 [![Runtime: Bun](https://img.shields.io/badge/runtime-Bun-f9f1e1?labelColor=171923)](https://bun.sh)
-[![WordPress](https://img.shields.io/badge/WordPress-6.0%2B-21759b?labelColor=171923)](https://wordpress.org/plugins/core-framework/)
+[![WordPress](https://img.shields.io/badge/WordPress-6.6%2B-21759b?labelColor=171923)](https://wordpress.org/plugins/core-framework/)
 
 [Website](https://coreframework.com) · [Product tour](#product-tour) · [Quick start](#quick-start) · [Documentation](https://docs.coreframework.com) · [Contributing](CONTRIBUTING.md) · [Marketplace](https://coreframework.com/marketplace)
 
@@ -219,7 +219,7 @@ Then publish `packages/www/dist` at the matching path, such as `https://example.
 
 ## WordPress development
 
-Requirements: WordPress 6.0 or newer, PHP 8.0 or newer, Composer, Bun 1.3.x, and a local HTTPS certificate.
+Requirements: WordPress 6.6 or newer, PHP 8.0 or newer, Composer, Bun 1.3.x, and a local HTTPS certificate.
 
 1. Link the plugin package into your WordPress installation:
 
diff --git a/packages/wp/Tests/GutenbergEnqueueTest.php b/packages/wp/Tests/GutenbergEnqueueTest.php
new file mode 100644
index 0000000..538401b
--- /dev/null
+++ b/packages/wp/Tests/GutenbergEnqueueTest.php
@@ -0,0 +1,99 @@
+<?php
+
+use CoreFramework\App\Gutenberg\Functions as GutenbergFunctions;
+use PHPUnit\Framework\TestCase;
+
+if ( ! defined( 'ABSPATH' ) ) {
+	define( 'ABSPATH', __DIR__ . '/' );
+}
+
+if ( ! defined( 'CORE_FRAMEWORK_ABSOLUTE' ) ) {
+	define( 'CORE_FRAMEWORK_ABSOLUTE', dirname( __DIR__ ) . '/core-framework.php' );
+}
+
+if ( ! function_exists( 'apply_filters' ) ) {
+	function apply_filters( $hook_name, $value ) {
+		return $value;
+	}
+}
+
+if ( ! function_exists( 'get_file_data' ) ) {
+	function get_file_data( $file, $headers, $context = '' ) {
+		return array_merge( array_fill_keys( array_keys( $headers ), '' ), array( 'version' => '0.0.0-test' ) );
+	}
+}
+
+if ( ! function_exists( 'plugin_dir_path' ) ) {
+	function plugin_dir_path( $file ) {
+		return rtrim( dirname( $file ), '/\\' ) . '/';
+	}
+}
+
+if ( ! function_exists( 'plugins_url' ) ) {
+	function plugins_url( $path = '', $plugin = '' ) {
+		return 'https://example.test/wp-content/plugins/core-framework/' . ltrim( $path, '/' );
+	}
+}
+
+if ( ! function_exists( 'wp_enqueue_script' ) ) {
+	function wp_enqueue_script( $handle, $src = '', $deps = array(), $ver = false, $args = array() ) {
+		$GLOBALS['cf_test_enqueued_scripts'][ $handle ] = array(
+			'src'  => $src,
+			'deps' => $deps,
+			'ver'  => $ver,
+		);
+	}
+}
+
+final class CoreFrameworkGutenbergEnqueueTestPlugin {
+	public function enqueue_core_framework_connector(): void {}
+
+	public function isDev(): bool {
+		return false;
+	}
+}
+
+if ( ! function_exists( 'CoreFramework' ) ) {
+	function CoreFramework() {
+		return new CoreFrameworkGutenbergEnqueueTestPlugin();
+	}
+}
+
+final class GutenbergEnqueueTest extends TestCase {
+	private const HANDLE = 'core-framework-gutenberg-plugin';
+
+	protected function setUp(): void {
+		$GLOBALS['cf_test_enqueued_scripts'] = array();
+	}
+
+	private function enqueue(): array {
+		( new GutenbergFunctions() )->enqueue_scripts();
+
+		$this->assertArrayHasKey( self::HANDLE, $GLOBALS['cf_test_enqueued_scripts'] );
+
+		return $GLOBALS['cf_test_enqueued_scripts'][ self::HANDLE ];
+	}
+
+	private function manifest(): array {
+		return require dirname( __DIR__ ) . '/gutenberg/index.asset.php';
+	}
+
+	public function test_bundle_declares_the_jsx_runtime_it_calls(): void {
+		$bundle = file_get_contents( dirname( __DIR__ ) . '/gutenberg/index.js' );
+
+		$this->assertStringContainsString( 'ReactJSXRuntime', $bundle );
+		$this->assertContains( 'react-jsx-runtime', $this->manifest()['dependencies'] );
+	}
+
+	public function test_enqueue_depends_on_the_jsx_runtime(): void {
+		$this->assertContains( 'react-jsx-runtime', $this->enqueue()['deps'] );
+	}
+
+	public function test_enqueue_uses_the_shipped_asset_manifest(): void {
+		$script   = $this->enqueue();
+		$manifest = $this->manifest();
+
+		$this->assertSame( $manifest['dependencies'], $script['deps'] );
+		$this->assertSame( $manifest['version'], $script['ver'] );
+	}
+}
diff --git a/packages/wp/core-framework.php b/packages/wp/core-framework.php
index 63dc78e..d92fda7 100644
--- a/packages/wp/core-framework.php
+++ b/packages/wp/core-framework.php
@@ -18,7 +18,7 @@
  * License:         MIT
  * License URI:     https://opensource.org/license/mit
  * Requires PHP:    8.0
- * Requires at least: 6.0
+ * Requires at least: 6.6
  * Namespace:       CoreFramework
  */
 
diff --git a/packages/wp/readme.txt b/packages/wp/readme.txt
index 659204c..0c4def3 100644
--- a/packages/wp/readme.txt
+++ b/packages/wp/readme.txt
@@ -1,7 +1,7 @@
 === Core Framework ===
 Contributors: coreframework
 Tags: css, framework, stylesheet, bricks, oxygen
-Requires at least: 6.0
+Requires at least: 6.6
 Requires PHP: 8.0
 Tested up to: 7.0
 Stable tag: 2.0.2
diff --git a/packages/wp/wp/App/Gutenberg/Functions.php b/packages/wp/wp/App/Gutenberg/Functions.php
index 4e48a5a..ce9e2e7 100644
--- a/packages/wp/wp/App/Gutenberg/Functions.php
+++ b/packages/wp/wp/App/Gutenberg/Functions.php
@@ -262,17 +262,33 @@ public function add_colors( $theme_json ) {
 	public function enqueue_scripts() {
 		CoreFramework()->enqueue_core_framework_connector();
 
-		$version = $this->plugin->version();
+		$script_path       = plugin_dir_path( CORE_FRAMEWORK_ABSOLUTE ) . 'gutenberg/index.js';
+		$script_asset_path = plugin_dir_path( CORE_FRAMEWORK_ABSOLUTE ) . 'gutenberg/index.asset.php';
+		$script_asset      = array(
+			'dependencies' => array(
+				'react',
+				'react-jsx-runtime',
+				'wp-block-editor',
+				'wp-components',
+				'wp-compose',
+				'wp-data',
+				'wp-element',
+				'wp-plugins',
+			),
+			'version'      => \file_exists( $script_path )
+				? \filemtime( $script_path )
+				: $this->plugin->version(),
+		);
 
-		if ( \file_exists( plugin_dir_path( CORE_FRAMEWORK_ABSOLUTE ) . 'gutenberg/index.js' ) ) {
-			$version = \filemtime( plugin_dir_path( CORE_FRAMEWORK_ABSOLUTE ) . 'gutenberg/index.js' );
+		if ( \file_exists( $script_asset_path ) ) {
+			$script_asset = require $script_asset_path;
 		}
 
 		wp_enqueue_script(
 			'core-framework-gutenberg-plugin',
 			plugins_url( 'gutenberg/index.js', CORE_FRAMEWORK_ABSOLUTE ),
-			array( 'wp-blocks', 'wp-i18n', 'wp-element', 'wp-editor' ),
-			$version,
+			$script_asset['dependencies'],
+			$script_asset['version'],
 			true
 		);
 	}