diff --git a/docs/guides/REV004_FINAL_MAINLINE_DELIVERY_SUMMARY.md b/docs/guides/REV004_FINAL_MAINLINE_DELIVERY_SUMMARY.md
index 9e1e76a..ac4cb7f 100644
--- a/docs/guides/REV004_FINAL_MAINLINE_DELIVERY_SUMMARY.md
+++ b/docs/guides/REV004_FINAL_MAINLINE_DELIVERY_SUMMARY.md
@@ -9,7 +9,7 @@
 ### docs
 - repo：`tangweijie/fujian_water_biz_doc`
 - branch：`main`
-- latest merge：`ab4eec0ea8dfeca49f7a4b913a53f73616f59f71`
+- latest mainline content：以当前 `main` 分支最新提交为准（此处不再固化 commit sha，避免总表在自我合并后立即过期）
 
 ---