Do you want to use Civi in multiple languages? This new feature adds more options to enable users to access CiviCRM in their language of choice.
This feature allows admins to configure a list of languages for users to select from and set the language of the CiviCRM interface for their own use. This translates the CiviCRM interface but does not translate content. For example, the menus are translated but content and option values (eg Mr/Mrs) are not translated.