New languages packs have just been released.

Deutsche Du (German Du) for 2.2.3
Deutsche (German) for 2.2.3
Portuguese Br for 2.2.3
Polski (Polish) for 2.2.2
Chinese for 2.1 (updated)
Russian for 2.2.1
Suomi (Finnish) for 2.2

Please visit http://www.yabbforum.com/languages.php to download them today!

Language translations for YaBB have been slow lately, so please help us out by sending us your translations of YaBB to another language for 2.2.3 or any recent release.  YaBB used to be translated into 24 languages, but we need help from users like you to make it happen!

Just added a couple more to the list.