Preserving Backward Compatibility

Garrett Rooney wrote an article called “Preserving Backward Compatibility” where he talked about how backward and forward compatibility is maintained for Subversion,  client/server source control management (SCM) system. Garrett talks about the importance of planning ahead, not throwing anything away, and of hiding the details. He also talks about exposing and hiding the dependencies of your API. This is a great article to read about how backward compatibility is maintained in a complex real-world system.

• http://onlamp.com/pub/a/onlamp/2005/02/17/backwardscompatibility.html?page=2