From 5f77b957786c24b0227d49c0f43baf20b789dbc3 Mon Sep 17 00:00:00 2001
From: Junyan Qin <rockchinq@gmail.com>
Date: Sun, 11 May 2025 20:53:02 +0800
Subject: [PATCH] doc: update README

---
 README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/README.md b/README.md
index 985a2403c..bf3d67b8f 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,7 @@
 
 > 此仓库是 LangBot 的文档仓库，代码仓库：  
 > [LangBot 代码仓库](https://github.com/RockChinQ/LangBot)  
+> 这是 LangBot 4.0 的文档，3.0 文档请见 `v3` 分支
 
 ## 参与编写