diff --git a/src/mibew/libs/classes/Mibew/Maintenance/Updater.php b/src/mibew/libs/classes/Mibew/Maintenance/Updater.php
index e00d624b..b1903adf 100644
--- a/src/mibew/libs/classes/Mibew/Maintenance/Updater.php
+++ b/src/mibew/libs/classes/Mibew/Maintenance/Updater.php
@@ -100,7 +100,7 @@ class Updater
     {
         $current_version = $this->getDatabaseVersion();
 
-        if (!preg_match("/^([0-9]{1,2}\.){2}[0-9]{1,2}(-beta\.[0-9]+)?$/", $current_version)) {
+        if (!preg_match("/^([0-9]{1,2}\.){2}[0-9]{1,2}(-(alpha|beta|rc)\.[0-9]+)?$/", $current_version)) {
             $this->errors[] = getlocal(
                 'The current version ({0}) is unknown or wrong formated',
                 array($current_version)
diff --git a/src/mibew/libs/classes/Mibew/Maintenance/Utils.php b/src/mibew/libs/classes/Mibew/Maintenance/Utils.php
index 4d81a748..aa846c18 100644
--- a/src/mibew/libs/classes/Mibew/Maintenance/Utils.php
+++ b/src/mibew/libs/classes/Mibew/Maintenance/Utils.php
@@ -64,11 +64,11 @@ class Utils
         foreach ($container_reflection->getMethods() as $method_reflection) {
             // Filter update methods
             $name = $method_reflection->getName();
-            if (preg_match("/^update([0-9]+)(?:Beta([0-9]+))?$/", $name, $matches)) {
+            if (preg_match("/^update([0-9]+)(?:(Alpha|Beta|Rc)([0-9]+))?$/", $name, $matches)) {
                 $version = self::formatVersionId($matches[1]);
                 // Check if a beta version is defined.
                 if (!empty($matches[2])) {
-                    $version .= '-beta.' . $matches[2];
+                    $version .= sprintf('-%s.%u', strtolower($matches[2]), $matches[3]);
                 }
 
                 $updates[$version] = $name;