en-US/about_PSVersion.help.txt

TOPIC
    about_psversion
 
SHORT DESCRIPTION
    Articfacts for PowerShell build numbers
 
LONG DESCRIPTION
    Until PowerShell 5.0 was released as part of Windows Management Framework
    5.0, the build number was rounded to .0, such as 1.0, 2.0, 3.0, and 4.0.
    However, in this new and fast moving pace Microsoft have gotten into, we
    will see more frequent updates to PowerShell than before. Due to this, the
    PowerShell version number isn't simply 5.0 anymore as you might have
    expected. Now it's a full build number, such as 5.0.10586.117 for the RTM
    release of Windows Management Framework 5 for downlevel operating systems.
    Because of this difficulty, the PSVersion module was created. It contains
    the Get-PSVersion function, which can read a mapping table and convert the
    PSVersion property to a "PSFriendlyVersionName" which makes more sense to a
    user.
 
SEE ALSO
    https://github.com/janegilring/PSVersion