New in Craft CMS 2.4
The full release notes are linked as always for those who want to read all the details.
So today we've released Craft 2.4, which brings over 60 additions and improvements, including SVG thumbnail support, redesigned user permissions, and two new Control Panel translations. - Pixel & Tonic
Customizable selection buttons
Individual selection buttons and labels can now be defined for assets, categories, entries, tags, and user fields. If you have a file field named Photo, the corresponding button can be called semantically correct, for example, "Add Photo".
Redesigned user management
A great convenience in user rights management is the addition of the "Select All" button, which selects all permissions within the group.
Two new languages
Craft becomes more international as the Control Panel is now available in two more languages: