From b612e16120ba06429e9fbb48abd6d8b1b15789af Mon Sep 17 00:00:00 2001
From: Simone Chemelli <simone.chemelli@gmail.com>
Date: Mon, 27 Sep 2021 12:23:26 +0200
Subject: [PATCH] Add current and latest firmware info to Synology_dsm (#56460)

---
 homeassistant/components/synology_dsm/binary_sensor.py | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/homeassistant/components/synology_dsm/binary_sensor.py b/homeassistant/components/synology_dsm/binary_sensor.py
index fc518d6c662..7f0704790e1 100644
--- a/homeassistant/components/synology_dsm/binary_sensor.py
+++ b/homeassistant/components/synology_dsm/binary_sensor.py
@@ -1,6 +1,7 @@
 """Support for Synology DSM binary sensors."""
 from __future__ import annotations
 
+from collections.abc import Mapping
 from typing import Any
 
 from homeassistant.components.binary_sensor import BinarySensorEntity
@@ -129,3 +130,11 @@ class SynoDSMUpgradeBinarySensor(SynoDSMBinarySensor):
     def available(self) -> bool:
         """Return True if entity is available."""
         return bool(self._api.upgrade)
+
+    @property
+    def extra_state_attributes(self) -> Mapping[str, Any] | None:
+        """Return firmware details."""
+        return {
+            "installed_version": self._api.information.version_string,
+            "latest_available_version": self._api.upgrade.available_version,
+        }