Added Users Karma System. This system lets you edit the karma of any user and restrict content publication to anyone that's annoying you and your visitors. There are 4 Karma values, as follow:
  0: Good Karma (Default value for all users)
  1: Regular Karma (Marked with a red flag, user activity isn't restricted but you need to pay atention)
  2: Bad Karma (Marked with a warning icon. All comments of this user are moderated from the admin panel, these users are notified that their comments are moderated)
  3: Devil Karma (Very bad/evil user. All comments from this user are ignored, never published, without any notice)



Added a great WYSIWYG text editor to ALL PHP-Nuke's textarea fields. Compatible with Mozilla, MSIE and FireFox.




Added RSS feed support for FireFox browser's Live Bookmarks.




New administrators system which lets you select who can administer each module




Added Subscription system. With this new feature you can now manage subscriptions to your site. Mainly  designed so webmasters can have subscribed users who pay to be able to remove advertising and/or access to subscribers only modules. The subscription system lets you set any block of the site to be invisible  for subscribed users, any module can be configured to grant access to subscribed users only and the  banners system will not show any advertising if the user is subscribed. A new function called paid() will  check if the user is subscriber or not.


MANY more items too... but these were the big ones

and its more secure