BB Manager download: Which link?

I ordered a BB and will be receiving it in the next day or so. I would like to download the software to familiarize myself with it before the pedal arrives. However, I am a bit confused as to which link I need to select and download, and will the updated firmware automatically download as well? Pardon my ignorance. Help please!

No automatic updates are currently supported.
The download page with the most recent and up to date links are here -

Thank you!