The most sweeping change since the last release is the refactoring of the XWrapper and XRefCountObject templates. The constructors were split into two versions, instead of taking an inDoRetain/inOwner parameter. The new version is cleaner, especially when passing the result of a function to the constructor.
The new Bindings group of classes provide support for basic Cocoa bindings in Carbon controls: value, text, enabled, minimum, and maximum. Data browser support is a work in progress.
The AEventParameter family of classes have been reworked slightly to use template specialization to associate event parameters, types, and type codes. It’s just the kind of tedious work that ought to be done by the compiler.
Many other changes and improvements have been made, including more examples and a few basic unit tests. I have also written up an overview of the major classes.