MobileRead Forums - View Single Post - Running really old version [1.23]...will I have any problems updating to current?

FizzyWater · 08-04-2016, 08:14 PM

Backup the database file in the Calibre folder (I'm not at home, so I don't remember the exact name - maybe "metadata.db"?). I know at least a couple of the Calibre updates changed the database structure and couldn't be automatically rolled back. So if you thought you might want to rollback to an older version, keeping a copy of that database is a safe practice.

Also, What operating system are you on? I believe WinXP folks have to stop at 2.0 or thereabouts, or risk it stop working. If you use WinXP, you might want to search in the Calibre forum.

08-04-2016, 08:14 PM	#2
FizzyWater You kids get off my lawn! Posts: 4,220 Karma: 73492664 Join Date: Aug 2007 Location: Columbus, Ohio Device: Oasis 2 and Libra H2O and half a dozen older models I can't let go of	Backup the database file in the Calibre folder (I'm not at home, so I don't remember the exact name - maybe "metadata.db"?). I know at least a couple of the Calibre updates changed the database structure and couldn't be automatically rolled back. So if you thought you might want to rollback to an older version, keeping a copy of that database is a safe practice. Also, What operating system are you on? I believe WinXP folks have to stop at 2.0 or thereabouts, or risk it stop working. If you use WinXP, you might want to search in the Calibre forum.