chore: wrapping up v18.0

Author: jeabakker

CHANGES.txt

@@ -1,6 +1,11 @@
 Version history
 ===============
 
+18.0 (2023-11-30):
+
+- changed: updated for Elgg 5.1
+- fixed: throw correct exception
+
 17.0.2 (2023-09-28):
 
 - fixed: concept groups edit save buttons

elgg-plugin.php

@@ -13,7 +13,7 @@
 
 return [
 	'plugin' => [
-		'version' => '17.0.2',
+		'version' => '18.0',
 		'dependencies' => [
 			'groups' => [
 				'position' => 'after',