FUDforum 2.3 has full i18n support, that allows an easy translation of the forum into a language of your choice. Currently FUDforum 2.3 is distributed with 8 languages: English, French, German, Swedish, Polish, Turkish, Spanish and Chinese.
More languages will be available in the near future. During the installation process you will have the opportunity to choose the forum's language. This option can later be modified via the FUDforum 2.3 Theme Manager.