New Role Scoper and Revisionary Release Candidates are available via http://wordpress.org/extend/plugins/

To install these pre-release versions, click on the “other versions” link on either plugin directory page.

An updated version of Role Scoping for NextGEN Gallery is also available.

I’ll further document the extensive improvements and bug fixes within the next few days.  Much of it is related to custom post types and taxonomies.  For now, see the change log in the readme.txt contained in any download.

Role Scoper versions 1.2.9.RC and 1.3.RC differ mainly in that 1.3 requires WordPress 3.0+.  It also has some additional code refactoring to reduce memory usage.