diff --git a/doc/FEATURE_SET.md b/doc/FEATURE_SET.md
index 4f2ec177add77aa98af6c25bb63577d76afb7f05..3dd3605fb3cfe327d83a329a2981496028ed2faf 100644
--- a/doc/FEATURE_SET.md
+++ b/doc/FEATURE_SET.md
@@ -127,6 +127,7 @@ The X2AP layer is based on **3GPP 36.423** v14.6.0 and implements the following
  - X2 Setup Failure
  - Handover Request 
  - Handover Request Acknowledge
+ - UE Context Release
  - X2 timers (t_reloc_prep, tx2_reloc_overall)
  - Handover Cancel