I just tried to upgrade from 0.6 to 1.0.3b3 and saw you removed the 'antfile' attribute (like in core <ant> task) from <antfetch>. In my opinion it would've been better to make it optional. I need 'antfile' because I've set up a "modular" build system where you can call targets in other buildfiles like Java calls methods in other objects (for ex, I have a CVS.xml buildfile containing all my CVS-specific targets). I like some of the new tasks, but I'm unable to upgrade because you broke me.