how to define sys requirements on Mac?

[Tiemo Hollmann TB]

Hello,

when releasing a new product on Win I now define as system requirements
Windows XP or Vista. I don't say "Windows XP or newer", because I don't now
what Windows 7 will bring us and I have experienced too many traps with new
Win versions in the past.

 

Now the question to the Mac Pros. How do you define your sys requirements on
Mac usually? Do you say Mac OS X 10.3 - 10.5, or are you so optimistic about
the compatibility that you say Mac OS X min. 10.3?

 

Would like to hear your experiences

Tiemo