Before installing this Cumulative Patch using the Patch Installer, please confirm that you are running Veeam Backup & Replication 11a (build 220.127.116.111) with or without earlier patches. You can check the installed build number in the Veeam Backup & Replication Console's Main Menu (≡) under Help > About. After the upgrade, your build number will be 18.104.22.1681 P20230227.
If you are running any Veeam Backup & Replication version between 9.5 U4b (22.214.171.12466) and 11 (126.96.36.1997 P20210525), you must use the ISO below to upgrade to version 11a P20230227. Remember to review the Upgrade Checklist as part of your upgrade process.