Update changelog

CHANGELOG.md

@@ -8,10 +8,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### New Features
 * Autocompletion for `iocsh.bash` has been added
+* Added consistency check between e3 environment variables and path to `iocsh.bash`. `iocsh.bash` will abort if these are not consistent.
 
 ### Bugfixes
 * `iocsh.bash --help` (and variants) no longer loads tries to load `env.sh`.
 
+### Other changes
+
 ## [3.4.1]
 
 ### Bugfixes