In the Open Catalog dialog box, specify the catalog file and then click Open. You can also choose a catalog from the File > Open Recent menu. If prompted, click Relaunch to close the current catalog and relaunch Lightroom Classic.
Specify the name and location of the new catalog folder, and then click Save (Windows) or Create (Mac OS). Lightroom Classic resets and displays an empty Library module, ready for you to import photos. When you open a different catalog, Lightroom Classic closes the current catalog and relaunches.
Go to the menu bar and click Lightroom Classic > Catalog Settings. Under the general tab of your catalog settings, you will find the location of your Lightroom Catalog. Click ‘Show’ to bring up the file on your computer.
The next thing we asked ourselves was, how to upgrade to the latest version of Lightroom Classic?
The catalogs in Lightroom Classic are not backward compatible. Catalog from new Lightroom Classic version cannot be opened in the older versions. For more information, see Are catalogs in Lightroom Classic backward compatible.
How do I move my Lightroom catalog to a new location?
With access to your Lightroom Catalog file (.. LRCAT), it’s time to move or copy it to a new location. To move the catalog, click and drag all related files to a new location, such as an external hard drive.
Another query we ran across in our research was “How do I backup my Lightroom catalog and preview files?”.
Some articles claimed Before copying or moving a catalog and preview files, back them up. Locate the folder that contains the catalog and preview files.
How to fix Lightroom catalog was not found error?
In the Lightroom catalog was not found error window, click Choose A Different Catalog. If the catalog you want to open isn’t listed, click Choose A Different Catalog again to open the Pictures[&Lightroom&] (Windows) or /Pictures/Lightroom (mac. OS) folder. Navigate to the location of your renamed or moved catalog, select it, and click Choose.
Sometimes database changes need to be made in the catalog to enable new features or to improve performance. Lightroom asks permission to upgrade your catalog when you first launch it after the new release has been installed.