diff --git a/.env.example b/.env.example
index 4755b847..1971e5cb 100644
--- a/.env.example
+++ b/.env.example
@@ -87,8 +87,8 @@ OLLAMA_MEM_LIMIT=8g
 
 # Ollama API key — set on the Ollama service to restrict inference API access on archiv-net.
 # Generate with: openssl rand -hex 32
-# NOTE: Empirically verified that OLLAMA_API_KEY is NOT enforced in Ollama 0.6.5 (ADR-028 §7).
-# Retained for forward compatibility. Leave empty for unauthenticated access.
+# NOTE: Empirically verified that OLLAMA_API_KEY is NOT enforced in Ollama 0.6.5 or 0.30.6 (ADR-028 §7).
+# archiv-net network isolation is the only effective access control. Retained for forward compatibility.
 OLLAMA_API_KEY=
 
 # Production SMTP — uncomment and fill in to send real emails instead of catching them