diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2c55cc975..470fa3bdf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,6 +15,7 @@ All notable changes to this project will be documented in this file.
 - I2C bus2 support to LM75AD temperature sensor
 - Command ``GpioRead`` to show input state (#19810)
 - ESP32 core v3 auto TasConsole USB or Serial connection by @staars
+- Support for Winsen XH03x dust particle sensors using USE_PMS5003 and PMS_MODEL_ZH03X (#19850)
 
 ### Breaking Changed
 
diff --git a/RELEASENOTES.md b/RELEASENOTES.md
index 37a9e5d40..92d6f5067 100644
--- a/RELEASENOTES.md
+++ b/RELEASENOTES.md
@@ -121,6 +121,7 @@ The latter links can be used for OTA upgrades too like ``OtaUrl https://ota.tasm
 - I2C bus2 support to HYTxxx temperature and humidity sensor
 - I2C bus2 support to SI1145/6/7 Ultra violet index and light sensor
 - I2C bus2 support to LM75AD temperature sensor
+- Support for Winsen XH03x dust particle sensors using USE_PMS5003 and PMS_MODEL_ZH03X [#19850](https://github.com/arendst/Tasmota/issues/19850)
 - Experimental support for ESP32-C2 and ESP32-C6 using Arduino core v3
 - ESP32 core v3 auto TasConsole USB or Serial connection by @staars