I downloaded and installed SW2021 Monday, and have been using it ever since. All good so far. I'm writing this to express my appreciation to whoever in the development team is responsible for a few enhancements that I and others have been requesting for years.
The first one is the improvements to Slot Mates (see here). We can finally choose the default type, and we can lock rotation on them. I wish I knew specifically who to thank for that one, but maybe someone else will.
Another one is the added context toolbars in Drawings (see here). Matthew, were you responsible for getting that implemented? If so, I appreciate it. I rarely, if ever, have a Drawing that doesn't have some sketch entities in it. It will be nice to not have to go to the Property Manager to have to set relations.