"To ship is to choose", so the Help files provided by PowerShell are sometimes outdated. You should use their online versions if you want to get the most accurate and up-to-date information:
Get-Help Get-Process -online
This will open a Web page with the most current version. However, it will only work on U.S. systems because of a documentation bug that you can see on localized versions:
@((get-help get-random).relatedlinks.navigationLink)[0]
As it turns out, Microsoft has added a comment "this may be in English" to the URL, so the URL breaks and you just get a bing search window on these systems.
