Index: trunk/docs/README.UPGRADE
===================================================================
--- trunk/docs/README.UPGRADE	(revision 27)
+++ trunk/docs/README.UPGRADE	(revision 68)
@@ -1,2 +1,19 @@
+
+from lower to 2.3.x: database scheme has changed slightly
+
+  -- MySQL:
+	ALTER TABLE samhain.log ADD COLUMN acl_old BLOB;
+	ALTER TABLE samhain.log ADD COLUMN acl_new BLOB;
+
+  -- PostgreSQL:
+	ALTER TABLE samhain.log ADD COLUMN acl_old TEXT;
+	ALTER TABLE samhain.log ADD COLUMN acl_new TEXT;
+
+  -- Oracle:
+	ALTER TABLE samhain.log ADD COLUMN acl_old VARCHAR2(4000);
+	ALTER TABLE samhain.log ADD COLUMN acl_new VARCHAR2(4000);
+	DROP TRIGGER trigger_on_log;
+ 
+
 
 since 2.2.0: server-to-server relay is possible