* Partial commits are now approximately 40% faster by walking over the unselected current tree more efficiently. (Robert Collins)
* New method ``bzrlib.osutils.minimum_path_selection`` useful for removing duplication from user input, when a user mentions both a path and an item contained within that path. (Robert Collins)
* New parameter yield_parents on ``Inventory.iter_entries_by_dir`` which causes the parents of a selected id to be returned recursively, so all the paths from the root down to each element of selected_file_ids are returned. (Robert Collins)