Little-known Homebrew tip: Python applications are installed in their own Homebrew-managed virtual environment, which means you can run pip in them to upgrade to the latest version of packages even when the tap hasn't been updated yet.
I just tried this and it worked - now "vd" gives my Visidata 2.0 on my system:
I just tried this and it worked - now "vd" gives my Visidata 2.0 on my system: