This release is mainly to fix the issues that people with older sites 
had with the removal of the use_hierarchy option in config.php. To 
make sure that people don't mess up their SEO after an upgrade, 
we've put the option back in.

We've also done a few bug fixes, including a fix to the cms_stylesheet 
plugin, a bug in Menu Manager, and a few other things that should've 
been fixed awhile ago.