Well, Im glad to see that NAnt 0.82 was released recently. The release has support for multiple versions of the framework via the nant.exe.config file. Included framework configurations include 1.0, 1.1 and mono.

Im using this new feature to test compatibility of my builds with 1.0 and 1.1 frameworks. Granted this doesnt test functionality against frameworks; that’s what NUnit is for, but it is still a good way to test that something actually builds on the 1.0 framework.