Hmm! For me it says 2020.1.4 on top left corner in the zBrush application (I checked to reconfirm, B C 0 is really not here in this version, the brush is not here).
I am on the 45 day trial version of zBrush. Does that even count as an registered user? I think not, but what do I know I’m sorry but I’m totally new to zBrush – I found my way here to try out zB thanks to some article from google.