From a2539188964253f930344ec563e52497d270f939 Mon Sep 17 00:00:00 2001
From: Necroneco <caibinqing@live.com>
Date: Mon, 28 Sep 2026 12:04:51 +0800
Subject: [PATCH] fix: replace deprecated CONCENTRATION_* unit constants
 (#1801)

---
 .../xiaomi_home/miot/miot_device.py           | 22 ++++++++++++++-----
 .../xiaomi_home/miot/specs/specv2entity.py    | 18 +++++++++++----
 2 files changed, 31 insertions(+), 9 deletions(-)

diff --git a/custom_components/xiaomi_home/miot/miot_device.py b/custom_components/xiaomi_home/miot/miot_device.py
index c506a0d..dcdd6da 100644
--- a/custom_components/xiaomi_home/miot/miot_device.py
+++ b/custom_components/xiaomi_home/miot/miot_device.py
@@ -52,14 +52,9 @@ import logging
 
 from homeassistant.helpers.entity import Entity
 from homeassistant.const import (
-    CONCENTRATION_MICROGRAMS_PER_CUBIC_METER,
-    CONCENTRATION_MILLIGRAMS_PER_CUBIC_METER,
-    CONCENTRATION_PARTS_PER_BILLION,
-    CONCENTRATION_PARTS_PER_MILLION,
     DEGREE,
     LIGHT_LUX,
     REVOLUTIONS_PER_MINUTE,
-    PERCENTAGE,
     SIGNAL_STRENGTH_DECIBELS,
     UnitOfBloodGlucoseConcentration,
     UnitOfEnergy,
@@ -105,6 +100,23 @@ from .miot_spec import (
     MIoTSpecValueRange
 )
 
+try:  # UnitOfDensity and UnitOfRatio are introduced in HA core 2026.7
+    from homeassistant.const import UnitOfDensity, UnitOfRatio
+    CONCENTRATION_MICROGRAMS_PER_CUBIC_METER = (
+        UnitOfDensity.MICROGRAMS_PER_CUBIC_METER)
+    CONCENTRATION_MILLIGRAMS_PER_CUBIC_METER = (
+        UnitOfDensity.MILLIGRAMS_PER_CUBIC_METER)
+    CONCENTRATION_PARTS_PER_MILLION = UnitOfRatio.PARTS_PER_MILLION
+    CONCENTRATION_PARTS_PER_BILLION = UnitOfRatio.PARTS_PER_BILLION
+    PERCENTAGE = UnitOfRatio.PERCENTAGE
+except ImportError:
+    from homeassistant.const import (
+        CONCENTRATION_MICROGRAMS_PER_CUBIC_METER,
+        CONCENTRATION_MILLIGRAMS_PER_CUBIC_METER,
+        CONCENTRATION_PARTS_PER_BILLION,
+        CONCENTRATION_PARTS_PER_MILLION,
+        PERCENTAGE)
+
 _LOGGER = logging.getLogger(__name__)
 
 
diff --git a/custom_components/xiaomi_home/miot/specs/specv2entity.py b/custom_components/xiaomi_home/miot/specs/specv2entity.py
index ba9aee0..2d10b7a 100644
--- a/custom_components/xiaomi_home/miot/specs/specv2entity.py
+++ b/custom_components/xiaomi_home/miot/specs/specv2entity.py
@@ -50,12 +50,22 @@ from homeassistant.components.sensor import SensorStateClass
 from homeassistant.components.event import EventDeviceClass
 from homeassistant.components.binary_sensor import BinarySensorDeviceClass
 
-from homeassistant.const import (CONCENTRATION_MICROGRAMS_PER_CUBIC_METER,
-                                 CONCENTRATION_PARTS_PER_MILLION,
-                                 EntityCategory, LIGHT_LUX, UnitOfEnergy,
+from homeassistant.const import (EntityCategory, LIGHT_LUX, UnitOfEnergy,
                                  UnitOfPower, UnitOfElectricCurrent,
                                  UnitOfElectricPotential, UnitOfTemperature,
-                                 UnitOfPressure, PERCENTAGE)
+                                 UnitOfPressure)
+
+try:  # UnitOfDensity and UnitOfRatio are introduced in HA core 2026.7
+    from homeassistant.const import UnitOfDensity, UnitOfRatio
+    CONCENTRATION_MICROGRAMS_PER_CUBIC_METER = (
+        UnitOfDensity.MICROGRAMS_PER_CUBIC_METER)
+    CONCENTRATION_PARTS_PER_MILLION = UnitOfRatio.PARTS_PER_MILLION
+    PERCENTAGE = UnitOfRatio.PERCENTAGE
+except ImportError:
+    from homeassistant.const import (
+        CONCENTRATION_MICROGRAMS_PER_CUBIC_METER,
+        CONCENTRATION_PARTS_PER_MILLION,
+        PERCENTAGE)
 
 # pylint: disable=pointless-string-statement
 """SPEC_DEVICE_TRANS_MAP