TLA Systems today announced the release of DragThing 5.8, a significant update to its popular dock application for Mac OS X. Sig Software and TLA Systems have also both announced that DragThing is now the official upgrade path for all existing users of Sig Software’s Drop Drawers. Beginning with this release, DragThing can now directly import your settings from Drop Drawers, including the contents, keyboard shortcuts, and appearance of drawers. Many new features have been added to this release specifically to make Drop Drawers users feel more at home, and the company says they are confident DragThing users will enjoy them too. Registered users of Sig Software’s Drop Drawers can upgrade to DragThing for the special price of US$19, a $10 discount on the normal cost of $29. This release is also free for registered users of DragThing 5.