diff --git a/changelog.txt b/changelog.txt
index a53c3a4..1d3a643 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,4 +1,5 @@
-- ??? : Version 3.5.2
+- September 18, 2018 : Version 3.5.2
+  - Improve PID (force feedback) implementation
   - Implement reset firmware command
   - Add echo feature (USB comm test)