The new version (v3.0) of the ru15k deck has just been released. This post contains instructions for existing users of the earlier versions of ru15k who wants to update to the new version. If you are a new user, or only studied a small number of cards from the original ru15k, you can also simply delete the original deck and start using this deck directly, which would not require any manual intervention. If you have done an upgrade before, the process should be largely the same.