UPGRADE.md in csv2hash-0.6.6 vs UPGRADE.md in csv2hash-0.6.7

@@ -1,6 +1,10 @@
 # Upgrading
 
+# Upgrading from 0.6.6 to 0.6.7
+
+nothing
+
 # Upgrading from 0.6.5 to 0.6.6
 
 nothing
 
 # Upgrading from 0.6.4 to 0.6.5