Re: Users and object privileges maintenance

But you of course can connect only to DBs you have explicit access to. Just beware that before 15, the built-in PUBLIC

role, which all ROLEs are implicitly members of, had implicit access to newly created DBs.

It's still the same concerning default database CONNECT privilege for PUBLIC.
You must confuse with the fact that v15+ removes PUBLIC creation permission on the public schema

Regards
Gilles