I do not need a solution (just sharing information)
With HF4 Update, the Filter "Computers with latest Deployment Plug-in installed on Windows (x64)" does not check on version 7.5.1601. Instead it checks equals/greater than 7.5.1600. So any client with old Deployment Plug-in will be recognised as "...with latest version". So the built-in Upgrade Policy shows 0 clients within its target.
After I corrected the filters and configured the "Deployment Plug-in Upgrade" policy with the correct target, the Installation returns error "another version of this product ist installed". So you have to remove Deployment Plug-in 7.5.1600 and reinstall Version 7.5.1601 manually.
As far as I can see the product code of both MSI files is the same.
Anyone else seen this problem?
