Since Apple released OS X Lion earlier this year, Apple has authorised its new software to be run within Mac virtualisation software such as Parallels and VMware Fusion. However, Leopard and Snow Leopard have never had the same consent from Apple.
Now, even without this consent, VMware has released a new update to its Fusion virtualisation software, which brings with it support for users to be able to run previous versions of Mac OS X. The new support within the update wasn’t actually included in the VMware release notes, but was uncovered after a tip-off by a user to the Mac World website.
Historical Context and Apple’s Virtualisation Policies
Previously, Apple would only allow the installation of Snow Leopard Server and Leopard Server within virtual machines. This restriction was in place to ensure that users were purchasing the appropriate server versions of the operating systems, which were more expensive and designed for enterprise use. With the release of OS X Lion, Apple expanded its virtualisation policy to include both Lion and Lion Server, reflecting a shift towards more flexible software usage.
The decision to allow Lion and Lion Server to be virtualised was seen as a significant move by Apple, as it opened up new possibilities for developers and IT professionals who needed to test software across different versions of macOS. This change also facilitated smoother transitions for businesses upgrading their systems, as they could now run legacy applications in a virtualised environment without needing to maintain older hardware.
VMware Fusion 4.1: A Game Changer
VMware’s decision to include support for Leopard and Snow Leopard in its Fusion 4.1 software is a notable development. This update allows users to run these older versions of macOS in a virtual machine, providing greater flexibility for those who rely on legacy software that may not be compatible with newer versions of macOS. This is particularly beneficial for developers who need to test applications across multiple versions of the operating system.
The inclusion of this support, although not officially documented in the release notes, suggests that VMware is responding to user demand for greater compatibility and flexibility. By enabling the virtualisation of older macOS versions, VMware is providing a valuable tool for both developers and IT professionals who need to maintain and test software across different environments.
Apple’s next move on this update is anyone’s guess, but due to the existence of Lion OS X support, Apple may well let the support stand. We will have to wait and see. If Apple decides to take action against VMware, it could lead to legal challenges or further restrictions on virtualisation. However, given the benefits that this support provides to the developer community, Apple may choose to overlook this update and allow it to remain in place.
The release of VMware Fusion 4.1 with support for Leopard and Snow Leopard represents a significant step forward in the world of macOS virtualisation. This update provides users with greater flexibility and compatibility, allowing them to run older versions of macOS in a virtual machine. While Apple’s response to this update remains uncertain, the benefits it offers to developers and IT professionals are clear. As the landscape of macOS virtualisation continues to evolve, it will be interesting to see how Apple and other software providers adapt to these changes.
Source: ARS Technica
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