Need help updating from 0.9.2 to 0.9.3b

This is dead simple - I'm sure.

I'm on Linux, and usually sudo apt update then sudo apt upgrade - but I just don't

know what to do with the tar ball. I tried just opening it with engrampa and it unzips a bunch of stuff but i am missing a stepo in getting the update done

I want the new promini

thanks for any help