Off-topic but quick answer:
The Ikea changelogs can be checked here:
https://ww8.ikea.com/ikeahomesmart/releasenotes/releasenotes.html
and here:
https://static.homesmart.ikea.com/releaseNotes/
You have to connect all Zigbee Ikea products (as all devices you use with Homey) to an Ikea Tradfri or Dirigera hub to receive updates and then reconnect them to Homey and repair all flows.
This can help with that:
