The breakdown of the OS ratio really depends on the software. So, you need to buy an old Mac too, not just an old OS.
#Old mac os program hypercard install#
In other words, if you buy the latest new Mac from Apple, you can't install 10.5 or 10.4 or whatever. Older OSes just don't have the required driver to be able to run on a newer machine, and Apple doesn't back-port drivers for older OSes. In case you buy an old OS X from Amazon or other retailers, note that you can not install an OS which was released before the hardware was announced.
#Old mac os program hypercard mac os x#
Does Apple have an MSDN-equivalent where old versions of the software are available for download?Īlso, is there a reliable breakdown somewhere of the rate of upgrades/updates to Mac OS X? (i.e., what % of users still run Mac OS X 10.5, 10.4, PPC-based machines, etc.) I see Apple has their Mac Developer Program which touts as one of its features as "access pre-release versions of the latest software" which is cool, but I don't see it anywhere on there that old versions of Mac OS X are available. In a question on virtualization someone said that they've done multi-boot or multiple hard drives for other versions of Mac OS X, but I'm not sure how one would obtain the install media or the license for an old version. As far as I know, you can't really walk into a store to buy Leopard (10.5) and anything prior to that is basically extinct. Since we got into Macintosh development after Snow Leopard was released, all of our machines come with Snow Leopard (10.6).
I know Xcode has facilities for compiling for old versions of Mac OS X, but QA would prefer to actually run the older versions of Mac OS X on a Macintosh. One of my boss' concerns is how it will run on older versions of Mac OS X.
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