Index: python/appcenter/app.py
===================================================================
--- python/appcenter/app.py	(Revision 71204)
+++ python/appcenter/app.py	(Arbeitskopie)
@@ -1004,17 +1004,26 @@
 		required_version = self.required_ucs_version
 		if not required_version:
 			return True
+		current_version = self.get_current_ucs_version_as_string()
+
+		if not self.is_fitting_ucs_version(required_version, current_version):
+			return {'required_version': required_version}
+		return True
+
+	@staticmethod
+	def get_current_ucs_version_as_string():
 		ucr_load()
-		version_bits = re.match(r'^(\d+)\.(\d+)-(\d+)(?: errata(\d+))?$', required_version).groups()
-		major, minor = ucr_get('version/version').split('.', 1)
+		version = ucr_get('version/version')
 		patchlevel = ucr_get('version/patchlevel')
-		errata = ucr_get('version/erratalevel')
-		comparisons = zip(version_bits, [major, minor, patchlevel, errata])
-		for required, present in comparisons:
-			if int(required or 0) > int(present):
-				return {'required_version': required_version}
-		return True
+		erratalevel = ucr_get('version/erratalevel')
 
+		current_version = '{version}-{patchlevel} errata{erratalevel}'.format(version=version, patchlevel=patchlevel, erratalevel=erratalevel)
+		return current_version
+
+	@staticmethod
+	def is_fitting_ucs_version(required_version, current_version): # type: (str, str) -> bool 
+		return LooseVersion(required_version) <= LooseVersion(current_version)
+
 	@hard_requirement('install', 'upgrade')
 	def must_have_fitting_kernel_version(self):
 		if self.docker: