First maintenance release for GD CPT Tools Pro 4.0 brings several bugs fixes (most of them related to bbPress support module), and new feature: support for post edit column for taxonomies added in WordPress 3.5. Also, support for overriding taxonomies is expanded and improved.
Since plugin already had support for adding column for taxonomies on post edit pages, that feature will continue to work as before in WP prior to 3.5. But, to make things easier, option is moved to Visibility group settings for all versions and for consistency. When overriding default or third party taxonomies, you can now affect visibility options also. Beside problems with bbPress, few other bugs are fixed, including problem with rendering values for Select fields and some visual issues with post types panel.
As always, if you find any problems, please report them in the forums.