Handling Older Versions of OS X Gracefully
Tuesday, November 18, 2008 at 5:02PM One of the advantages of being a newcomer to Cocoa is that I can make my life easier (albeit at the expense of a few potential users) and concentrate on Leopard-only code and ignore all of those previous version of OS X that have gone before. A result of this, however, is needing to tell a user who has downloaded your application that they need a more recent version of OS X or even simply that they need to update from, say, version 10.5.2 to 10.5.4.
This can be quickly and easily achieved via SystemVersionCheck by Chris Campbell which you can download from http://homepage.mac.com/chris_campbell/blog/SystemVersionCheck-1.1.html. The web page also explains the theory behind SystemVersionCheck and gives great step-by-step instructions for integrating it into your own applications.
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