Yank has a mailing list called yank-dev which will at least notify you about new releases but should also be used for questions and everything else.
You can subscribe to it by using the web form or by sending an email to Yank-dev-request@lists.sourceforge.net with the following text in the body: 'subscribe <pass> <mode>' where <pass> is your list-password and <mode> is either digest or nodigest.
The list has an archive.