From 5b2ab1f59e2cf97b08693337e51b153d41833f1a Mon Sep 17 00:00:00 2001
From: Junxiao Shi <git@mail1.yoursunny.com>
Date: Sat, 18 Jul 2026 20:08:11 +0000
Subject: [PATCH] svs: clarify that ndn.app_support.svs is SVS v1

---
 src/ndn/app_support/svs/sync.py | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/ndn/app_support/svs/sync.py b/src/ndn/app_support/svs/sync.py
index 5cad140..50a282e 100644
--- a/src/ndn/app_support/svs/sync.py
+++ b/src/ndn/app_support/svs/sync.py
@@ -43,6 +43,15 @@ class SvsState(Enum):
 
 
 class SvsInst:
+    """
+    State Vector Sync protocol instance.
+
+    This class implements SVS v1 protocol:
+    <https://github.com/named-data/StateVectorSync/blob/9bc93797412a03e1eebbc9d4390840b3f187292a/Specification.md>
+
+    It is incompatible with other SVS protocol versions.
+    """
+
     on_missing: OnMissingDataFunc
     sync_interval: float
     suppression_interval: float