If you were unlucky today, you might have received a notification from GNOME in Fedora 30 or 31 that Fedora 32 is now available for upgrade.
This might have struck you as a bit odd, it being rather early for Fedora 32 to be out and there not being any news about it or anything. And if so, you'd be right! This was an error, and we're very sorry for it.
What happened is that a particular bit of data which GNOME Software (among other things) uses as its source of truth about Fedora releases was updated for the branching of Fedora 32...but by mistake, 32 was added with status 'Active' (meaning 'stable release') rather than 'Under Development'. This fooled poor GNOME Software into thinking a new stable release was available, and telling you about it.
Kamil Paral spotted this very quickly and releng fixed it right away, but if your GNOME Software happened to check for updates during the few minutes the incorrect data was up, it will have cached it, and you'll see the incorrect notification for a while.
Please DO NOT upgrade to Fedora 32 yet. It is under heavy development and is very much not ready for normal use. We're very sorry for the incorrect notification and we hope it didn't cause too much disruption.