Primarily a minor tweek and bug update but also includes new commands and features and updates to the latest run-times of all extension modules (MarkLogic 5.0 , latest Calabash , latest AWS etc).
Definitely a suggested upgrade for all.
One caveat. Due to a suggestion from a reader, as well as my long-term wish, I've changed "xls" to use a different tag for files and directories. More consistent, didn't break any unit tests but might break your scripts. Sorry ...