diff --git a/MCP23008-MCP23017.md b/MCP23008-MCP23017.md
index 5f651f55..423f9182 100644
--- a/MCP23008-MCP23017.md
+++ b/MCP23008-MCP23017.md
@@ -1,3 +1,12 @@
+
+***
+
+### IMPORTANT NOTICE
+**_This driver is not yet incorporated in development branch. If you wish to test, please see pull request at https://github.com/arendst/Sonoff-Tasmota/pull/3188_**
+
+***
+
+
 ### MCP230xx - Microchip MCP23008 / MCP23017 I2C GP INPUT
 
 Technical Data from the manufacturer: