have all photos and catalog on external drive. I have one machine with standalone lr 5 and a laptop with lr cc 6. if I update the catalog
on the laptop to lr 6 cc will it still work on the lr 5 machine. I can't upgrade it until win 10 comes out because it has a 32 bit oper system.
Need to know before I do any work on my catalog.
Adobe upgraded the catalog format so Lightroom 5 will still work with its own catalog, but if you make any changes to a catalog in Lightroom 6 then LR5 won't be able to read that...
You could however work independently on the two releases and then later merge/upgrade the two versions' catalogs together. For more information on how to do that, see this comment and response:
Does that answer your question? Hope it helps!