CHANGELOG.md in aipp-2.2.0 vs CHANGELOG.md in aipp-2.2.1

@@ -1,8 +1,13 @@
 ## Main
 
 Nothing so far
 
+## 2.2.1
+
+#### Changes
+* Adopt latest update of OFMX to accommodate new airspace types RMZ, TMZ and DRA
+
 ## 2.2.0
 
 #### Changes
 * Bump aixm gem to >=1.5.0 in order to bump to OFMX schema 0.2