You didn’t miss anything. There just updated the WHMCS template to make compatible with the latest “WHMCS Version 7.9.1” in the latest version. There was nothing changed in the theme. That’s why the theme version is 3.2. Please check out the changelog from the documentation/changelog folder.
Moreover, please extends your support period for the BizWalls theme, because your FREE support period was expired on 2018-05-11.