diff --git a/homeassistant/components/knx/cover.py b/homeassistant/components/knx/cover.py
index b3096a75df5..ca18ad4835a 100644
--- a/homeassistant/components/knx/cover.py
+++ b/homeassistant/components/knx/cover.py
@@ -2,11 +2,10 @@
 from __future__ import annotations
 
 from collections.abc import Callable
-from datetime import datetime
 from typing import Any
 
 from xknx import XKNX
-from xknx.devices import Cover as XknxCover, Device as XknxDevice
+from xknx.devices import Cover as XknxCover
 
 from homeassistant import config_entries
 from homeassistant.components.cover import (
@@ -22,9 +21,8 @@ from homeassistant.const import (
     CONF_NAME,
     Platform,
 )
-from homeassistant.core import HomeAssistant, callback
+from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
-from homeassistant.helpers.event import async_track_utc_time_change
 from homeassistant.helpers.typing import ConfigType
 
 from .const import DATA_KNX_CONFIG, DOMAIN
@@ -104,13 +102,6 @@ class KNXCover(KnxEntity, CoverEntity):
             f"{self._device.position_target.group_address}"
         )
 
-    @callback
-    async def after_update_callback(self, device: XknxDevice) -> None:
-        """Call after device was updated."""
-        self.async_write_ha_state()
-        if self._device.is_traveling():
-            self.start_auto_updater()
-
     @property
     def current_cover_position(self) -> int | None:
         """Return the current position of the cover.
@@ -118,8 +109,9 @@ class KNXCover(KnxEntity, CoverEntity):
         None is unknown, 0 is closed, 100 is fully open.
         """
         # In KNX 0 is open, 100 is closed.
-        pos = self._device.current_position()
-        return 100 - pos if pos is not None else None
+        if (pos := self._device.current_position()) is not None:
+            return 100 - pos
+        return None
 
     @property
     def is_closed(self) -> bool | None:
@@ -155,14 +147,12 @@ class KNXCover(KnxEntity, CoverEntity):
     async def async_stop_cover(self, **kwargs: Any) -> None:
         """Stop the cover."""
         await self._device.stop()
-        self.stop_auto_updater()
 
     @property
     def current_cover_tilt_position(self) -> int | None:
         """Return current tilt position of cover."""
-        if self._device.supports_angle:
-            ang = self._device.current_angle()
-            return 100 - ang if ang is not None else None
+        if (angle := self._device.current_angle()) is not None:
+            return 100 - angle
         return None
 
     async def async_set_cover_tilt_position(self, **kwargs: Any) -> None:
@@ -181,25 +171,3 @@ class KNXCover(KnxEntity, CoverEntity):
     async def async_stop_cover_tilt(self, **kwargs: Any) -> None:
         """Stop the cover tilt."""
         await self._device.stop()
-        self.stop_auto_updater()
-
-    def start_auto_updater(self) -> None:
-        """Start the autoupdater to update Home Assistant while cover is moving."""
-        if self._unsubscribe_auto_updater is None:
-            self._unsubscribe_auto_updater = async_track_utc_time_change(
-                self.hass, self.auto_updater_hook
-            )
-
-    def stop_auto_updater(self) -> None:
-        """Stop the autoupdater."""
-        if self._unsubscribe_auto_updater is not None:
-            self._unsubscribe_auto_updater()
-            self._unsubscribe_auto_updater = None
-
-    @callback
-    def auto_updater_hook(self, now: datetime) -> None:
-        """Call for the autoupdater."""
-        self.async_write_ha_state()
-        if self._device.position_reached():
-            self.hass.async_create_task(self._device.auto_stop_if_necessary())
-            self.stop_auto_updater()
diff --git a/homeassistant/components/knx/manifest.json b/homeassistant/components/knx/manifest.json
index 00b4c6cdc5f..b8f9bdcbd30 100644
--- a/homeassistant/components/knx/manifest.json
+++ b/homeassistant/components/knx/manifest.json
@@ -3,7 +3,7 @@
   "name": "KNX",
   "config_flow": true,
   "documentation": "https://www.home-assistant.io/integrations/knx",
-  "requirements": ["xknx==0.21.2"],
+  "requirements": ["xknx==0.21.3"],
   "codeowners": ["@Julius2342", "@farmio", "@marvin-w"],
   "quality_scale": "platinum",
   "iot_class": "local_push",
diff --git a/homeassistant/components/knx/strings.json b/homeassistant/components/knx/strings.json
index 018db071adf..c8161462d66 100644
--- a/homeassistant/components/knx/strings.json
+++ b/homeassistant/components/knx/strings.json
@@ -101,7 +101,7 @@
           "multicast_group": "Used for routing and discovery. Default: `224.0.23.12`",
           "multicast_port": "Used for routing and discovery. Default: `3671`",
           "local_ip": "Use `0.0.0.0` for auto-discovery.",
-          "state_updater": "Globally enable or disable reading states from the KNX Bus. When disabled, Home Assistant will not actively retrieve states from the KNX Bus, `sync_state` entity options will have no effect.",
+          "state_updater": "Set default for reading states from the KNX Bus. When disabled, Home Assistant will not actively retrieve entity states from the KNX Bus. Can be overridden by `sync_state` entity options.",
           "rate_limit": "Maximum outgoing telegrams per second.\nRecommended: 20 to 40"
         }
       },
diff --git a/requirements_all.txt b/requirements_all.txt
index 687962e94b6..3fa07679b1a 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -2454,7 +2454,7 @@ xbox-webapi==2.0.11
 xboxapi==2.0.1
 
 # homeassistant.components.knx
-xknx==0.21.2
+xknx==0.21.3
 
 # homeassistant.components.bluesound
 # homeassistant.components.fritz
diff --git a/requirements_test_all.txt b/requirements_test_all.txt
index 05a7207c01a..9195dc04ff4 100644
--- a/requirements_test_all.txt
+++ b/requirements_test_all.txt
@@ -1612,7 +1612,7 @@ wolf_smartset==0.1.11
 xbox-webapi==2.0.11
 
 # homeassistant.components.knx
-xknx==0.21.2
+xknx==0.21.3
 
 # homeassistant.components.bluesound
 # homeassistant.components.fritz