this has almost always been like that (except faulty versioning versions 7.6.1 to 7.6.3)
file version will be 7.x.x.x
product version will be 7.xx

this product version scheme M.mm is also what the auto updater and the notepad++ update servers expect.

if you have written your script based on 7.6.1 to 7.6.3, you will have to modify them accordingly.

[version]$requiredVersion = ‘7.66’
$Path = “${ENV:ProgramFiles}\Notepad++”
Try {
[version]$installedVersion = (Get-Item -Path “$path\notepad++.exe” -ErrorAction “Stop”).VersionInfo.ProductVersion -as [version]
If ($installedVersion -eq $requiredVersion) {
Return 0
} else {
# remove for detection to work
$installedVersion
}
} Catch {}

Major Minor Build Revision
===== ===== ==== =======
7 66 -1 -1