I just downloaded SU 21, but all my personal settings / extensions of SU 20 are not set automatically. Does this mean that you have to reset everything manually and download all extensions? Or is there an easier way to do this?
Yep, probably not the best way to do it. It’s good practice to rather install them using the Extension Manager, making sure you have the latest version of each. Unless you have the sketchUcation extension to help manage the extensions available from their repository (which is a good many, most of which also appear on Extension Warehouse), then you select the bundle configuration and have that manage your extension install.