I wanted to share something I faced when upgrading from VAW 220.127.116.114 to 18.104.22.1680.
Well at first, its a clean install rather than an upgrade, the setup checks for previous available VAW installation and refuses to proceed before you manually uninstall the old VAW.
If you have a very simple backup selection like Entire Computer, Volume Level Backup, or File Level Backup with not so many exceptions/unselected subfolders, just go with the uninstall and proceed with installing the new VAW.
Otherwise, If you're like me and have a huge list of exceptions/unselected subfolders, before uninstalling your VAW, run Veeam.Agent.Configurator -export /f:PATH\BACKUPNAME.xml and you'll get a precious XML file with every option you have made in that job.
>>> Uninstall old VAW -> Install new VAW >>>
Now you are presented with a blank VAW, and the Backup Wizard showing up.
The issue is you can't import the XML file you have exported from the old VAW, just yet!
I faced an error about the ApplicationSettings tag when importing backup.xml, seems there is no backward to read this XML.
The workaround I found was create a dummy backup on the new VAW, export it as you did before with a different filename! and open both xml in a text editor.
You will have to copy the <EpDiskFilter ... /> tags from the old one to the new one, mind the position its inside <SourceInfo> </SourceInfo>.
Import your grafted XML with the Veeam.Agent.Configurator and it should work without any issue.
All you'll have to do is setup the target, schedule and any missing option and you'll be good to go!
P.S: Don't forget to upgrade your VBR/VCC with 9.5U2!