Release Notes: pidfile and Darwin 9 support were added.
Release Notes: This release corrects some small bugs and has been changed to work on OS X Leopard.
Release Notes: Some minimal Cygwin support was added, and support for other operating systems (NetBSD, OpenBSD, and OS X) was corrected. For security, there is aa --path option to limit the path used in running commands. Some bugs were fixed and the code was modernized a little.
Release Notes: A number of small changes suggested by users were made.
Release Notes: A feature was added to allow one to accumulate information over all processes via user-specified Perl code and to take action on that. The ps-variable order in GNU/Linux was changed to ensure that single-token attributes don't get messed up by multiple-token attributes.