[2021] Does the last KotS weekend (Nov 6/7) still happen during patch 0.10.9?

I'll find out what the proper path is here and get back to you guys.

As I understand it there should be no trouble.
If you complete the collection and earn another, you will get the mission when 0.10.10 is released, as per the article :)

I can't comment on when the patches will be released, I'm afraid.