Add new device class for binary-sensor software/firmware update

[mib1185]

Context

Some integrations implements binary sensors to represent if an software/firmware update is available (eq hassio, shelly, synology_dsm), it would be nice to display those better.

Proposal

Add new device class DEVICE_CLASS_UPDATE to binary sensor platform, which maps state on to "Update available" and state off to "up-to-date".

Also suggest to use icon mdi:update on frontend

current representation

suggested representation

Furthermore this might also be seen as a preparation to #566

Consequences

Needs to be implemented (see home-assistant/core#53945)

[thecode]

I agree, it is better to represent update binary sensors as a separate device class and not as on/off binary sensor

[frenck]

This is a fairly common sensor I've seen around in my system quite a bit. E.g., Supervisor, the updater (for core), but also with Zigbee devices.

I'm looking forward to this one 👍

[balloob]

Yeah, I guess this makes sense.

Related topic but for another proposal: We really should implement a concept of "config" entity so we know to hide such entities from default views and show them only on device cards.

[thecode]

@balloob we should push this #566

[mib1185]

ok ... there are meanwhile three strong votes, even from the boss 😎 him self, so can I assume, this proposal will be agreed? 😬

[mib1185]

PRs created

• Add DEVICE_CLASS_UPDATE to Binary Sensor core#53945
• Add icons for the device_class 'update' frontend#9711
• Add device class update home-assistant.io#18733
• Add device class update developers.home-assistant#1013