diff --git a/apps/production/coturn.yaml b/apps/production/coturn.yaml
index ddac3f1..53fad08 100644
--- a/apps/production/coturn.yaml
+++ b/apps/production/coturn.yaml
@@ -68,9 +68,14 @@ spec:
   # hostNetwork pods bind directly to the node's ports (3478/5349) - on this single-node
   # cluster, RollingUpdate's default "bring up the new pod before removing the old one"
   # can never schedule (port conflict). Recreate kills the old pod first.
+  # Note: switching to Recreate on an existing Deployment that already had the
+  # RollingUpdate defaults recorded required a one-time manual
+  # `kubectl patch --type=merge -p '{"spec":{"strategy":{"rollingUpdate":null,"type":"Recreate"}}}'`
+  # (2026-07-28) - a YAML `rollingUpdate: null` in this file is dropped before reaching the
+  # API server (client-side omits null keys) rather than sent as an explicit field deletion,
+  # so it can't clear an already-set field on its own.
   strategy:
     type: Recreate
-    rollingUpdate: null
   selector:
     matchLabels:
       app: coturn