A nice feature in AS would be truly working functions, that just by the way.
Like the drawingstyles, theoretical you can export an single drawingstyle out of AS 2017 and import it in AS2018. But thanks to the new database, which is so much faster, this function doesn't work. One of them exports a Acces datapackage and the other one want's to import an SPL datapackage.
This function would be very useful for customers who don't want to transfer the whole database to the next AS.