Ability to update selected artboards rather the updating the entire prototype
most of my project are huge and heavy, not less than 200 artboard
I would like the ability to update certain or specific artboards on the link rather than uploading all the link again
plus some times I would like to share specific changes done with my manager while other changes are still under going-which I don't want my manager to see yet
My scenario is very similar to the OP's.
To make XD even remotely usable, I have to break the app into separate flows. Even in this limited mode, a normal flow for me has 20-30 artboards. XD's flow upload is understandably slow, considering the number of interactions I usually am including.
Even with only a couple of dozen artboards per flow or less, selective upload to the parent flow (as other apps have implemented) would be a big productivity boost for me.
Related to the OP's last point, I might also have sections of a flow that aren't quite ready for my dev team. In those cases, I'll post a basic version first so they can see the whole flow, but I don't yet want to confuse them with enhancements that are still in-progress.
Update selected artboard