Seems like. after doing 'Update-Help -force' in previous version, it won't remove the previous folder because of the *HelpInfo.xml files.
Steps to reproduce
Open File Explorer and search inside the C:\Program Files\PowerShell\6.0.0-beta.7
Expected behavior
To remove previous version.
Actual behavior
Previous version folder is not removed.
Environment data
Windows 10 Insider Build 16299.15
PS C:\Program Files\PowerShell\6.0.0-beta.8> $PSVersionTable
Name Value
---- -----
PSVersion 6.0.0-beta.8
PSEdition Core
GitCommitId v6.0.0-beta.8
OS Microsoft Windows 10.0.14393
Platform Win32NT
PSCompatibleVersions {1.0, 2.0, 3.0, 4.0...}
PSRemotingProtocolVersion 2.3
SerializationVersion 1.1.0.1
WSManStackVersion 3.0

Seems like. after doing 'Update-Help -force' in previous version, it won't remove the previous folder because of the *HelpInfo.xml files.
Steps to reproduce
Open File Explorer and search inside the C:\Program Files\PowerShell\6.0.0-beta.7
Expected behavior
To remove previous version.
Actual behavior
Previous version folder is not removed.
Environment data
Windows 10 Insider Build 16299.15