diff --git a/README.md b/README.md
index de4a31e..4b60248 100644
--- a/README.md
+++ b/README.md
@@ -31,6 +31,8 @@ Click on the Fabrication Toolkit <img src="https://github.com/bennymeg/JLC-Plugi
 
 ⊛ Ensure your board is syncronized before invoking this feature.
 
+⊛ The `User_1` layer in internally defined as a **V-Cuts** layer, please avoid using it for anything else. <span style="text-color: light-grey !important;">_(since v2.5.0)_.</span>
+
 ## Options
 
 ### ① Include Component Part Number in Production Files