diff --git a/CHANGELOG.md b/CHANGELOG.md
index 94118ef16..81f985b1b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,11 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
-## [0.6.5] - Unrelease
+## [0.6.5] - Unreleased
 
-### Changed
+### Added
 
-- The configuration of many node-types is now splitted into seperate `in` and `out` sections. Please update your configuration files accordingly.
+- A new sub-command `villas-relay` implements a client-to-client WebSocket relay.
+  It can be used as a proxy for nodes which sit behind a NAT firewall.
 
 ## [0.6.4] - 2018-07-18
 
@@ -52,6 +53,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 ### Changed
 
 - The IO format names have changed. They now use dots (`raw.flt32`) instead of hyphens (`raw-flt32`) in their name. Please update your configuration files accordingly.
+- The configuration of many node-types is now splitted into seperate `in` and `out` sections. Please update your configuration files accordingly.
 
 ## [0.6.1] - 2018-02-17