Index: upgrades.php
===================================================================
--- upgrades.php	(revision 15437)
+++ upgrades.php	(working copy)
@@ -208,9 +208,16 @@
 
 		function Upgrade_4_2_2($mode)
 		{
-			if ($mode == 'before') {
-				if ($this->Conn->GetOne('SELECT LanguageId FROM '.TABLE_PREFIX.'Language WHERE PrimaryLang = 1')) return ;
-				$this->Conn->Query('UPDATE '.TABLE_PREFIX.'Language SET PrimaryLang = 1 ORDER BY LanguageId LIMIT 1');
+			if ( $mode == 'before' ) {
+				$sql = 'SELECT LanguageId
+						FROM ' . TABLE_PREFIX . 'Language
+						WHERE PrimaryLang = 1';
+
+				if ( $this->Conn->GetOne($sql) ) {
+					return;
+				}
+
+				$this->Conn->Query('UPDATE ' . TABLE_PREFIX . 'Language SET PrimaryLang = 1 ORDER BY LanguageId LIMIT 1');
 			}
 		}
 
@@ -2192,5 +2199,36 @@
 					$this->Conn->Query($sql);
 				}
 			}
+
+			// add new ml columns to phrases/e-mail events
+			$ml_helper->createFields('phrases');
+			$ml_helper->createFields('emailevents');
 		}
+
+		/**
+		 * Update to 5.2.0
+		 *
+		 * @param string $mode when called mode {before, after)
+		 */
+		public function Upgrade_5_2_0($mode)
+		{
+			if ( $mode != 'after' ) {
+				return;
+			}
+
+			$table_name = $this->Application->getUnitOption('c', 'TableName');
+
+			$sql = 'SELECT NamedParentPath, CachedTemplate, CategoryId
+					FROM ' . $table_name;
+			$categories = $this->Conn->GetIterator($sql);
+
+			foreach ($categories as $category_data) {
+				$fields_hash = Array (
+					'NamedParentPathHash' => kUtil::crc32(mb_strtolower(preg_replace('/^Content\//i', '', $category_data['NamedParentPath']))),
+					'CachedTemplateHash' => kUtil::crc32(mb_strtolower($category_data['CachedTemplate'])),
+				);
+
+				$this->Conn->doUpdate($fields_hash, $table_name, 'CategoryId = ' . $category_data['CategoryId']);
+			}
+		}
 	}
\ No newline at end of file