Originally Posted by Saxguy
How do I find which version of Calibre I have? There is an upgrade note at the bottome of the screen, but I dont know whether or not I need to remove the old one or not first....
Other bottom corner
Most ( at least, 7.x and 8.x do) upgrade over the existing.
The only time NOT to consider an update, is if you have a couple of older devices that an upgrade past point z
(see all the old release notes AFTER your current version if you worry)