We probably do need a new update. I'm able to play on the legit version and update but when reinstalling the current version of blackmod, it gets stuck on checking for updates. I'm guessing they must have changed the update url and the mod will need to do the same so it can update itself.
I'm having hte same issue as well. If someone has the mod working despite the new client update let us know and steps you took to update, of if you're getting same issue like us. Otherwise yes great mod. Eagerly await new blackmod update.