Version 2.2 (Mar 1, 2003):

* Added -S option for specifying seed to random number generator.

* Changed -r option to mean random open condition order.

* Further improvements to memory and time efficiency.  All known
  memory leaks have been eliminated.

Version 2.1 (Sep 21, 2002):

* Improved memory and time efficiency, in particular when planning
  with lifted action.


Version 2.0 (Jul 18, 2002):

* Support for durative actions.

* Support for multiple simultaneous flaw selection strategies.


Version 1.1 (Feb 8, 2002):

* PDDL2.1 compatibility.


Version 1.0 (Jan 25, 2002):

* Initial release.
