Allow upgrading with WinGet

[PtJade-Ceramic]

Prerequisites

• I have written a descriptive issue title.
• I have searched all issues to ensure it has not already been reported.

Summary

Allow the user to choose to upgrade with WinGet when new version is available

Proposed Design

PR #5558 extends promptToUpdate() in UpdatePowerShell.ts:

New version detected
  |
  +-- Not Windows? --> [Open GitHub Release] [Not Now] [Don''t Show Again]
  |
  +-- Windows? --> winget show --id Microsoft.PowerShell
        |
        +-- WinGet installed, version > local?
        |     --> [Upgrade with WinGet] [Open GitHub Release] [Not Now] [Don''t Show Again]
        |
        +-- WinGet installed, version < GitHub release?
        |     --> [View WinGet Progress] [Open GitHub Release] [Not Now] [Don''t Show Again]
        |
        +-- WinGet not installed?
              (fallback: query winget-pkgs GitHub API)
              --> [Install WinGet] [Open GitHub Release] [Not Now] [Don''t Show Again]

Button	Action
Upgrade with WinGet	Opens terminal: winget update --id Microsoft.PowerShell -e -s winget
Install WinGet	Installs WinGet via Add-AppxPackage, then upgrades PowerShell
View WinGet Progress	Opens matching issue/PR in microsoft/winget-pkgs
Open GitHub Release	Opens github.com/PowerShell/PowerShell/releases/tag/vX.Y.Z

[andyleejordan]

Are other VS Code extensions upgradeable with WinGet?

[JustinGrote]

While theoretically possible, vscode already has robust extension management and it can be handled via the command line --install-extension switch, so I would say this should go in the wontfix bucket as we'd have to own a manifest and keep it up to date.

[andyleejordan]

Agreed.

[PtJade-Ceramic]

Just to clarify the misunderstanding -- this issue is about upgrading PowerShell itself via WinGet, not the VS Code extension.

The extension already has an update notification feature (in UpdatePowerShell.ts) that detects new PowerShell releases and prompts users to open the GitHub release page. This feature request adds a WinGet upgrade option alongside "Open GitHub Release":

winget update --id Microsoft.PowerShell -e -s winget

PR #5558 implements this.