The decision to support older releases is like any other business decision, it is all about the money and profitability. If the vendor can make money at providing support for older releases, it is good business for the vendor. The decision may be sugar-coated with pronouncements about doing what is good for the customer, but both the vendor and the customers know that the first consideration must be the money.
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alternative use of the resources, the value of keeping everyone on one release, etc.) If the analysis does not show an adequate return, the vendor has the following three practical solutions: 1) do not offer support, 2) get more customers to buy support, or 3) charge more for the support. While gaining more customers for support sounds obvious, it is often much more difficult (and thus costly) a feat than expected. Another possible extreme example is the approach taken by Relevant Business Systems ,