fixed error in doc

diff --git a/doc/internal/db_format_change.txt b/doc/internal/db_format_change.txt
index 6bbb842..a77b21b 100644 (file)
--- a/doc/internal/db_format_change.txt
+++ b/doc/internal/db_format_change.txt
@@ -1,11 +1,18 @@
 ***************
-* 226 ==> 227 *
+* 227 ==> 228 *
 ***************
 
 - Maps from 1.0.x converted into network map objects
 - Table "web_maps" deleted
 
 
+***************
+* 226 ==> 227 *
+***************
+
+- Column "zone_guid" added to table "clusters"
+
+
 ***************
 * 225 ==> 226 *
 ***************