I recently upgraded my HASS.IO version to 0.94.1, my system has been fairly stable for some time now apart from an SSL issue so i have made zero changes to the configuration files.
However after updating and rebooting the controller i have error messages in relation to the device-tracker and ios components.
Now its failing to track my devices and i have no idea what the IOS error is as it appears my app is working fine on my phone.
Anyone seen this before and point me in the right direction before i have to strip it all out and start again ?
You did not look at the release notes too carefully.
Modernizing the device tracker
This release also introduces a long overdue overhaul of how the device tracker works. We are introducing this overhaul piece by piece, focusing first on device tracker platforms that push their updates to Home Assistant: mobile app, OwnTracks, GeoFency, GPSLogger and Locative.
These integrations will no longer use known_devices.yaml but instead use entities, like all other integrations in Home Assistant. You can change the name and entity ID via the UI. It is no longer posible to merge the devices with other device tracker entities. This was flaky at best. You should now use the new person integration for this.