Changes to security
The Manage Promotions right has been added. Users only have access to the Promotion Lists for which they have Manage Promotions rights. You set the Manage Promotions right for Users and User Groups on a Target Type.
New user interface features
New SmartTarget extensions
What's new and changed in SmartTarget 2014
Setting Manage Promotions and Manage Experiments rights when using the deprecated publishing framework
Migrating your existing publishing setup to the new publishing framework
What's new and changed in SmartTarget 2014 SP1