iZone integration not working after Update to HA Core 2025.7.2

I updated HA Core from 2025.4.2 to 2025.7.2.

HAOS 10.3, running on Proxmox VM, mini-PC.

After update to HA Core the iZone integration is no longer working correctly.

I have two iZone controllers, one for each ducted aircon system.

After update one of the controllers and associated entities is no longer available in HA. Reloading the integration does not resolve it.

I’ve reverted to my previous version of HA Core for the time being as this is not an integration I can spend a lot of time to resolve (wife would not be happy!), so hoping there is a suggestion I can try when I next attempt to update HA Core.

Thanks for any suggestions.

The current version of HAOS is 16.x.
Perhaps the problem?
I doubt seriously that HAOS 10.x will work with 2025.anything.

The only option is update to 10.5:


So, almost 2 years old…

The current is…

Then why am I not presented with a HAOS beyond 10.5 to upgrade to?

OK, thanks for the pointer on HAOS.

Having not realised HAOS had updated so much (since the settings menu does not tell you that), I went through the process of updating to the only option presented, being HAOS 10.5.

That went OK and all integrations working.

So I then retried the update to HA Core 2025.7.2 (from 2025.4.2) and this time the iZone integration is working after update, with both iZone controllers being picked up.

I note the system is now presenting me with an option to update the HAOS to 11.5, so I guess it only offers information about the next HAOS update rather than the latest HAOS available.

I will work my way (carefully) through the HAOS upgrades.