Version 1.3 changes the form of the library, but maintains its the core functionality.
Previous versions had buffer/directory compression & diffing methods encapsulated in buffer and directory namespaces.
This version has given proper classes to buffers and directories, including some additional basic operations for them, to allow users to easily create and manage these objects. These classes have their own compress and diff functions.
This version also allows generating documentation with doxygen. There is a live version of it maintained here on github.