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Veeam Availability Suite 9.5 Update 4 has been released just two months ago, that now there is a new Veeam Backup & Replication 9.5 Update 4a release.

Veeam Backup & Replication 9.5 Update 4a is a cumulative hotfix rollup that addresses issues reported by customers on the original build of Update 4, and adds the following platform support enhancements:

  • VMware vSphere 6.7 U2 readiness including support for VMs with virtual hardware version 15. Please note that the testing has been performed on pre-release 6.7 U2 builds, while the official support will still require a comprehensive testing of the GA build.
  • Microsoft System Center Virtual Machine Manager 2019 is now supported as a source for Microsoft Hyper-V VMs backup jobs.
  • Dell EMC Data Domain using DD OS 6.2 is now supported as the backup repository via both DDBoost and CIFS/NFS protocols.
  • NSS trustee rights on files and folders are now restored during file-level recovery from NSS volumes hosted on Micro Focus Open Enterprise Server (OES).
  • Experimental support for keyboard-interactive authentication can be enabled by creating the LinuxKeyboardInteractiveAuth (DWORD) = 1 registry value under the HKLM\SOFTWARE\Veeam\Veeam Backup and Replication key on the backup server. By default, we will look for the “password” substring in the SSH console prompts. You can override this using the LinuxKeyboardInteractiveAuthPrompt (REG_MULTI_SZ) value, where multiple substrings can be specified one per line.
  • New Japanese era compatibility.

Before update your product, please confirm that you are running version 9.0 Update 2 (build or later prior to installing this update. You can check this under Help About in Veeam Backup & Replication console. After upgrade, your build number will be

For more information see also the Release Notes for Veeam Backup & Replication 9.5 Update 4a.