psversiontable
A read-only variable (as $PSVersionTable) to get the current PowerShell version. tldr-pages
On Windows
Windows
A read-only variable (as $PSVersionTable) to get the current PowerShell version. This command can only be run under PowerShell.
Print a summary of the currently installed PowerShell version and edition
$PSVersionTableIdentifyGet the detailed (major, minor, build, and revision) version number of PowerShell
$PSVersionTable.PSVersionIdentifyList all supported PowerShell script versions that this PowerShell version supports
$PSVersionTable.PSCompatibleVersionsIdentifyGet the latest Git commit ID where the currently-installed PowerShell version is based on (works on PowerShell 6.0 and later)
$PSVersionTable.GitCommitIdIdentifyCheck whether the user is running PowerShell Core (6.0 or later) or the original "Windows PowerShell" (version 5.1 or below)
$PSVersionTable.PSEditionIdentify