updated 09:15 am EDT, Mon September 24, 2007
Leopard nearing final
Participants in Apple's Developer Connection can now download a new preview build of Mac OS X Leopard (10.5), one which may be the first release candidate. Build 9A559, a 6.5GB download, is said to have only two known issues, in contrast to other builds distributed earlier in the summer. With a public release of Leopard due at some point in October, Apple must finalize the operating system within weeks, and so may be considering its latest version as a possible final build. The Mac OS X 10.5 Leopard pre-release version for developer testing currently lists system requirements as a G4 867MHz or faster processor, which makes several older Mac models incapable of running the forthcoming operating system.
The largest issue with 9A559 is said to be archive installations. Owners of PowerPC Macs may have trouble when using this path to move from Tiger to Leopard, but only if they attempt to copy over user settings. Apple is currently suggesting that users perform a clean install, an upgrade install, or simply avoid carrying over user settings.
In addition, Apple is apparently asking developers to test the delivery mechanism for updated HP drivers. If developers are using HP printers, Apple asks that they should deselect the HP-specific printer drivers from the Mac OS X 10.5 Installer, instead opting to install the drivers by running Software Update after the installation of Leopard is complete.
[updated to clarify HP driver 'issues' with this release]