That's right my fellow Corsians, we took a leaf from Window's book and skipped a version entirely.
Welcome to 1.12
Everything is up to date and ready to go however you may notice steamy has a few issues with grass. To fix this, you'll need to delete the "grass".json file (not the grass_normal file) within your assets->models->blocks directory of the steamy resourcepack.
We'll get our updated version of the serverside resourcepack back up for you to use if you don't want to mess with the files yourself.
See you on CorsiaCraft soon