diff --git a/CHANGELOG.md b/CHANGELOG.md
index b521a9a8..9c31fe7c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -87,14 +87,28 @@ file must exist, or a unit file must be specified by `-u`.
 From now on, if new units are needed for the VSS catalog they shall be added to the
 [VSS catalog file](https://github.com/COVESA/vehicle_signal_specification/blob/master/spec/units.yaml).
 
-## Planned Changes VSS-Tools 4.1
 
-Adding of struct support for exporters currently not supporting structs.
+## Implemented changes, not yet released in major version
 
-## Changes to be included in VSS-Tools 5.0
+### Struct support in vspec2ddsidl
 
+The vspec2ddsidl tool now supports structs
 
-### Change in UUID handling.
+### Jsonschema tool added
+
+A new tool vspec2jsonschema has been added
+
+### Id generator tool added
+
+A new tool vspec2id has been added. It can be used to generate and maintain unique identifiers for signals.
 
+### Unit files and quantity files
+
+A new syntax has been introduced for unit files. The old syntax is still supported.
+Domains have now been renamed to Quantities.
+In addition to this a quantity file format has been defined, and the tool will inform
+if units refer to a quantity that has not been defined an information message will be printed.
+
+### Change in UUID handling.
 
 * The parameter `--no-uuid` is now removed, and an error is given if `--no-uuid` is used.