Here are the updates btw
Highlights
General
Improved BBCode support and functionality (e.g. spoiler tag)
Improved integration with J! 2.5 ACL
A completely new approach to managing custom menu items (e.g. rules, help pages)
New forum views (e.g. threaded topic layout)
Improved topic creation (e.g. forcing a user to select a category before posting in the first-listed category)
Improved subscription/email functionality
Categories now have unique SEF aliases - no mode category ids in the new urls:
New: Global moderators can now manage announcements (before: list of user ids)
New: Global moderators can remove thank you
New: Locked categories with no posts are threaded as sections
New: Shadow topics are now always created when merging topics (keeps old URL working)
New: Router uses Joomla! 2.5 transliteration settings
New: Topic icons for deleted, unapproved, locked, sticky
New: Topic starter and moderators can change topic icon on reply
Removed: kunena_menu module position
Removed: PDF output (Joomla! 2.5 doesn't include the library out of the box)
Better organized and smaller language files
Router has been redesigned for better performance and to be more general
Router can convert most legacy urls into new ones
Settings:
Moved: Integrations are now plug-ins
Changed: Empty board email address now means: use site address
New: Added new Image / file upload options (moderators & admins only)
New: Ability to hide page creation time
New: Manage attachments in user profiles
New: Guests / new users need approval on posting
New: Attachment limit per post
New: No category selected on posting
New: Fallback to English if translations are missing
New: Caching
Removed or changed a few settings (most should be the same after migration)
Bug fixes:
Category index only shows topics which user can see
New indication was cleared when someone posted a message to the topic
Wes