Duotone Unit wing 2020 vs. 2021. What are the differences?

[hgrimberg]

What were the changes / improvements made from the Duotone Unit wing from 2020 to the 2021? I was offered a 2020 and I try to see the differences from one wing to the other, and I don't see any by looking at the photographs. Do somebody here know what the changes were?
Thank you!

[Dwight (DW)]

Seems a bit confusing what model year they actually are 

There are only 2 Units. The original with soft handles and the new, with hard boom handles.

I believe, only German dealers have received the new hard boom model as of today. US has to wait, as usual 

[hgrimberg]

I thought the Duotone Echo was the only one with a boom and the Units were always with handlers. But apart of the possible difference between having handlers or a boom, what are the other changes the Unit had in 2021 in comparison to its earlier version from 2020?

[Caribsurf]

I own 2 Units, bought a 5m in late 2021 and 6m in 2020  No difference...