Please forgive me if this question has already been posed, but I have done a search on the forum and can't find it ...
Which version of the Calibre software would be compatible with my ancient but much loved iMac G5 2.1 Ghz, running OS X version 10.5.8 (which I think is the latest possible with the G5 chipset)?
Having downloaded the latest version on the site without having first looked properly and seen the "Intel" warning, I found of course that it wouldn't install once downloaded.
Many thanks