Where to sign in to get updates to SketchUp Pro?

I understand that we need to “sign in” every 28 days, or so, in order to get the latest SketchUp updates. In fact, I just got an email that goes over the latest updates, as of 9-June-21. My question is - where should I “sign in”? Would I sign in with my Trimble Account? Thanks for any info that might steer me in the right direction.