Routine back-up question
I am relatively new to Zotero and am regularly backing up my data after each update to the library. I am backing it up from Dropbox (my regular data directory) to an external hard drive that I have locally. I noticed in the documentation that, under the "restore" section, it says, "If you have a local Zotero library that you want to overwrite, close Zotero and delete the old Zotero data directory before syncing." This guidance applies only to restoring, correct? For routine back-ups, I need only copy the parent Zotero folder (including all subfolders) from my regular data directory to my external hard drive, where it will override the old version from the last back-up. Or, do I need to delete the old copy before backing up each time? Thanks in advance for setting me straight.