WWDC 2007

[Praxis]

Leopard isn't 64-bit only, is it? You can install it on a 32-bit machine just fine, IIRC.

I mean, it would rather SUCK for me, as I bought a MacBook with a Core Duo, which is 32-bit. Considering for how many years Apple supported OS 9, I find it highly unlikely they would suddenly release an operating system that would not only not install on any G3 or G4 machine, but also not install on the CURRENT Mac Mini model that they are selling today (Core Duo- 32 bit) or an eight-month-old machine like mine.

He might mean x64, which will run on core2duo's (and it's technically closer to 48bit than 64bit), is leopard x64 only? That would make it only run on imtel macs though?

And not even that; my Intel Mac isn't x64.

Leopard is available in one version. The same Leopard install DVD has 32- and 64-bit versions of PowerPC and Intel versions of Leopard. Quad Universal binaries; whenever a Mac application is compiled as universal, 32- and 64-bit versions are automatically compiled and stuck in the same binary.

There's one version of Leopard for any machine, 32- or 64-bit. There is one version of any app, not separate 32- and 64-bit versions like for windows. The guy who wrote that article didn't understand that and thought there was just an x64 version of Leopard.

[Durandal]

Praxis is right. Leopard will run on 32-bit and 64-bit PowerPC and Intel chips. It'll ship with everything (with some exceptions, like Rosetta, for example) compiled as a four-way binary. Each binary will contain code for 32-bit PowerPC, 64-bit PowerPC, x86 and x86-64.