From a14701f5c5c8d11a054a220e8f7861668b8cb49b Mon Sep 17 00:00:00 2001
From: Nekojimi <Jim@nekojimi.moe>
Date: Thu, 2 Oct 2025 00:11:12 +0100
Subject: [PATCH] CheckInMessage: add field for peer's current change.

---
 src/main/protobuf/CommonMessages.proto | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/main/protobuf/CommonMessages.proto b/src/main/protobuf/CommonMessages.proto
index dedfdbd..679d8b6 100644
--- a/src/main/protobuf/CommonMessages.proto
+++ b/src/main/protobuf/CommonMessages.proto
@@ -21,6 +21,7 @@ message HelloMessage {
 
 message CheckInMessage {
     repeated uint64 current_change_heads = 1;
+    uint64 current_change = 2;
 }
 
 enum Error {