I recently upgraded to Lightroom 2020 and in the process it has ceated a new library catalog with filename and extension "Lightroon Catalog-2.lrcat".
I do not foresee using an earlier version of Lightroom when a new one has been installed, and I have always worked with just one catalog.
I feel inclined to delete the old catalog and rename the new one to remove the "-2" appendix to the filename, but I do not understand how to check that the new catalog includes everything that was in the previous one or which version of Lightroom a given catalog [is compatible with / was created by].
I am also not sure how to rename a catalog file within Lightroom.
Any insight from Lightroom users would be much appreciated