diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2105b03..4e89da5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [Unreleased]
 
 ### Added
+- **DC-163 judge: grade B (round 2)** urn:ump:l2tg66wmchkmd6fde4k3ojwc56zpxqh657spe37bu6dpvduswalq
 - **DC-163: AI assistant that actually works — LLM intent engine + fixed
   chat panel.** The 🤖 floating assistant was broken end-to-end: the
   frontend read a nonexistent `data.data` envelope (every reply was