Please confirm you are running version 184.108.40.2060, 220.127.116.111, 18.104.22.1682 or 22.214.171.1243 prior to installing this update. You can check this under Help | About in Veeam Backup & Replication console. After upgrading, your build will be version 126.96.36.1998.
If you use Veeam ONE to monitor Veeam Cloud Connect, make sure you install this
update. You will need to install the update for Veeam ONE first, then install update 188.8.131.528 for Veeam Backup & Replication.