Seconds after publishing my previous post, I was a bit confused after reading the firmware release notes again, while checking that I got the version number right. It seems that Miele pulled back version 2.09, which of course it not possible to do after people, including myself, have upgraded. The release notes was also edited to reflect this, so the notes about 2.09 are gone. http://GATEWAY/Rest/Update/:

{"AvailableVersion":"2.0.7","UpdateInProgress":false,"Type":"XGW3000","ReleaseNotes":{"href":"http://www1.miele.com/media/ex/int/service/downloads/xgw3000_release_notes.html"},"NewerAvailable":false,"CurrentVersion":"2.0.9","Rev":"1.4.6"}

Direct link to release notes.

Now I wonder if the bugs mentioned in my previous post was also present in version 2.07. Version 2.09 was released on September 27th. I know because I upgraded over VPN from CPH Airport while waiting for my flight – just after receiving a notification from my app that it was available.