diff --git a/esphome/esp-occupancystair.yaml b/esphome/esp-occupancystair.yaml
index 0170cdd..722df22 100644
--- a/esphome/esp-occupancystair.yaml
+++ b/esphome/esp-occupancystair.yaml
@@ -6,6 +6,7 @@
 # https://home.fox.co.nz/gitea/zorruno/zorruno-homeassistant/src/branch/master/esphome/esp-occupancystair.yaml
 #:########################################################################################:#
 # VERSIONS:
+# V2.3 2026-07-25 Standardized MQTT payloads: "ON"/"OFF" → "On"/"Off"
 # V2.2 2026-02-25 Updated yaml to zorruno layout V1.1
 # V2.1 2025-08-25 Added some MQTT to send commands to turn on remote lights
 # V2.0 2025-06-05 YAML Tidyups
@@ -64,7 +65,7 @@ substitutions:
 
   # Project Naming
   project_name: "Generic.ESP32"
-  project_version: "v2.2" # Project V denotes release of yaml file, allowing checking of deployed vs latest version
+  project_version: "v2.3" # Project V denotes release of yaml file, allowing checking of deployed vs latest version
 
   # Passwords & Secrets (unfortunately you can't use substitutions inside secrets names)
   api_key: !secret esp-api_key