CHANGELOG.md in aipp-2.1.0 vs CHANGELOG.md in aipp-2.1.1

@@ -1,8 +1,14 @@
 ## Main
 
 Nothing so far
 
+## 2.1.1
+
+#### Additions
+* Improve help when no scope is given
+* Add `-0` to write empty OFMX in case of no upstream data
+
 ## 2.1.0
 
 #### Breaking Changes
 * Unify all executables into `aip2aixm` and `aip2aixm` respectively