updated 09:30 am EST, Mon November 21, 2011
Feature discovered undocumented
VMware's Fusion 4.1 update has made an important, undocumented change, users have discovered. The software will now run virtualized Leopard and Snow Leopard clients, something that was previously blocked. The only requirement is that a user click "Continue" to assert that they have a license to run either OS on their system.
Beginning with Lion, Apple changed its licensing agreement to allow limited virtualization of OS X. The company reiterates, however, that only Lion, Leopard Server, and Snow Leopard Server can be legally virtualized. This could potentially put VMware in trouble unless it has already reached some understanding with Apple.
The main incentive to run virtualized editions of Leopard or Snow Leopard is PowerPC support. Since the PowerPC platform is no longer emulated in Lion, some legacy apps may otherwise be completely inaccessible after making the upgrade. Developers may also want an easier way of testing backwards compatibility on new apps.