diff --git a/CHANGELOG.md b/CHANGELOG.md
index 504d1ab..e183679 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,14 @@
+[0.4.0] - 2017-09-27
+--------------------
+
+- refactoring: simplified csv-printing in rcdynamics_stream tool
+- refactoring: better exception handling
+- refactoring: renaming, wording is now PbMsgType instead of ProtoType
+- added '-l option' to rcdynamics_stream tool: list avail. streams
+- improvements and bug fixes in cmake
+- use rc_dynamics_msgs submodule
+
+
 [0.3.0] - 2017-09-06
 --------------------