As promised, HTC has released Android 2.3 update for Desire HD and Incredible S in Europe. The update is rolling out over the air and you will soon get a notification on your device to download the update.
Update is about 100 MB in size, so it would be better if you download it using the WiFi network to avoid data changes. Full changelog is still missing; we will post it as soon as we get hold of it.
Gingerbread is expected to be rolled out in other regions soon.