Upgrading a catalog

[victorgrant]

Hi,

I am slightly muddled in that I thought I had upgraded my catalog when I installed Lightroom classic but when I check the name it says Lightroom 3 from Elements. When I open the 'actual' Lightroom Classic catalog, it says that it needs to upgrade. Which then opens Lightroom and wants me to import. Do I now import all of my photos? What if I keep using the catalog from Elements assuming I must have imported it sometime?

Please help.

I didn't find the right solution from the Internet.

References:
www.lightroomqueen.com/community/threads/upgrading-a-catalog.34067/
Mobile Teaser Video

Thanks