UPDATE: There is now a patch 3 out so be sure to use this. You can download the patch here Here is a step-by-step guide for upgrading Veeam 6.1 to 6.5. I have seen some post on the veeam forum regarding upgrading SQL 2005 express (standard in 6.1) to a newer version that is supported by Veaam B&R 6.5 this is not necessary, the installer will upgrade the SQL to the version used with Veeam R&B 6.5.
Download the latest installer from Veeam’s home page and run the .exe. The installer will check for prerequisites and prompt for installation and reboot if necessary.
step1
step2
Next the Veeam B&R installer will detect the older version and ask if you would like to upgrade, click ‘yes’
step3
A welcome- and EULA screen will show, click ‘next’ and ‘next’
step4