diff --git a/esphome/esp-masterbdrmsouth.yaml b/esphome/esp-masterbdrmsouth.yaml
index fae6d5a..fbabbd7 100644
--- a/esphome/esp-masterbdrmsouth.yaml
+++ b/esphome/esp-masterbdrmsouth.yaml
@@ -6,6 +6,7 @@
 # https://home.fox.co.nz/gitea/zorruno/zorruno-homeassistant/src/branch/master/esphome/esp-masterbdrmsouth.yaml
 #:########################################################################################:#
 # VERSIONS:
+# v1.5 2026-07-25 Standardized MQTT payloads: "ON"/"OFF" → "On"/"Off"
 # v1.4 2026-07-20 Flattened retained North and South MQTT status topics to the device roots.
 # v1.3 2026-06-12 Reassigned logical controls after live wiring checks.
 #                 Relay 1 on both switches = North Lights virtual/Tasmota control.
@@ -101,7 +102,7 @@ substitutions:
 
   # Project Naming
   project_name: "Zemismart Technologies.KS-811 Triple"
-  project_version: "v1.4"
+  project_version: "v1.5"
 
   # Passwords & Secrets
   api_key: !secret esp-api_key