Deprecate PowerShell 2.0 Support

[dahlbyk]

Dropping support for PowerShell 2.0 means fewer workarounds like #162. Before we do so, it would be good to warn those using 2.0 about the change:

• Add warning mentioning that PowerShell 2.0 will no longer be supported.
• Provide link to PowerShell 3.0 download.
• Provide link to this issue for those wishing to express dissent.
• Provide a setting to disable the warning?

[Neon22]

just getting this warning now. but the link suggested:

• https://www.microsoft.com/en-us/download/details.aspx?id=34595

This download includes Windows PowerShell 3.0, WMI, WinRM, Management OData IIS Extension, and Server Manager CIM Provider
All of which seem essential to make powershell work. but are labelled as incompatible with the Configuration Manager, and System Center Virtual Machine Manager and some others.

Does not donwloading this mean I can't use github for windows, or github anymore ?

[dahlbyk]

@Neon22 what version of Windows Server are you using? You might try jumping straight to PowerShell 4.0 or PowerShell 5.0?

[Neon22]

oh... completely unaware - good solution - thanks...
I'd suggest you change message to recommend 5 instead of 3

[dahlbyk]

Done: 83caec1

Hrm... well, I just now started getting the "get version 3.0" warning yesterday. I'm still using windows 7 and those links to get the newer powershell just take me to an "upgrade to windows 10" link, which I don't really want to do. Any suggestions aside from telling me to upgrade to windows 10? Would it hurt anything to just suppress the warning for now?

[coridrew]

fwiw, I have to dev on an x86 win7 machine for a current client, and was able to successfully upgrade Powershell on that dinosaur :)