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 ## Goals
 The primary goal of this project is to to familiarize yourself with
-the environment and the language. All in this class will be written
-in Swift 5.5, using XCode 12 or later as your friendly development
-environment.  *Errors resulting from development in different
+the environment and the language. You should be using at least
+Swift 5.3 and 12.4 as your friendly development
+environment.  *Errors resulting from development in older
 environments still result in loss of points.*
 
 Specifically, you will create an application having a model that emulates the logic of the 2048