Answer
May 29, 2024 - 02:56 PM
The latest operating system for iMac G5 is Mac OS X 10.5.8 Leopard. The information is sourced from Apple's official website (https://support.apple.com/kb/SP517?vi...) under the "System Requirements" section where it states, "Mac computer with an Intel, PowerPC G5, or PowerPC G4 (867MHz or faster) processor". It also mentioned in the technical specifications of iMac G5 on Apple's site (https://support.apple.com/kb/sp96?loc...) that its processor is PowerPC G5, hence it is compatible with Mac OS X 10.5.8 Leopard.
