diff --git a/Documentation/Changelog/3.0.0.rst b/Documentation/Changelog/3.0.0.rst
new file mode 100644
index 0000000..239b533
--- /dev/null
+++ b/Documentation/Changelog/3.0.0.rst
@@ -0,0 +1,32 @@
+3.0.0
+=====
+
+Breaking
+--------
+
+* Drop support for TYPO3 10.4 and 11.5.
+
+* Drop support for PHP 7.4 and 8.0.
+
+Features
+--------
+
+* Add support for TYPO3 12.4.
+
+* Add support for PHP 8.3.
+
+Fixes
+-----
+
+Nothing
+
+Tasks
+-----
+
+Nothing
+
+Deprecation
+-----------
+
+Nothing
+
diff --git a/ext_emconf.php b/ext_emconf.php
index ec918cb..d1288ee 100644
--- a/ext_emconf.php
+++ b/ext_emconf.php
@@ -1,6 +1,8 @@
 <?php
 
-$EM_CONF[$_EXTKEY] = [
+declare(strict_types=1);
+
+$EM_CONF['thuecat'] = [
     'title' => 'ThüCAT',
     'description' => 'Integration of ThüCAT into TYPO3 CMS.',
     'category' => 'fe',
@@ -11,7 +13,7 @@ $EM_CONF[$_EXTKEY] = [
     'author' => 'Daniel Siepmann',
     'author_email' => 'coding@daniel-siepmann.de',
     'author_company' => '',
-    'version' => '2.1.0',
+    'version' => '3.0.0',
     'constraints' => [
         'depends' => [
             'core' => '',