I understand that the new PowerShell 6/core lacks support for Windows GUI libraries, I have developed some important projects in PS-5.1 using the Windows.Forms .NET classes.
Problem: We are planning to upgrade to PowerShell 6 this summer, which means I will lose all the GUI functionalities (developed using Windows.Forms).
Question: What should we do in this situation in order to retain the GUI functionality in our PS apps. Do you envisage Microsoft will provide any alternatives for GUI support going forward?
TIA
One question I have is what you mean by "Upgrading" to PowerShell 6? On Windows there is no upgrade. You will run PowerShell 6 side-by-side with your existing version of PowerShell. So, if you want to keep running your old scripts that use GUI stuff, keep doing so in PowerShell 3, 4 or 5.1. If you want to start using PowerShell 6 in order to write scripts that will function on all platforms, then use PowerShell 6 for that. The good news is, you will continue to have both. (for now at least)