Retire PowerShellGet v1 content

[sdwheeler]

PR Summary

Retire PowerShellGet v1 content

• Fixes AB#547907

PR Checklist

• Descriptive Title: This PR's title is a synopsis of the changes it proposes.
• Summary: This PR's summary describes the scope and intent of the change.
• Contributor's Guide: I have read the contributors guide.
• Style: This PR adheres to the style guide.

[Copilot]

Pull request overview

This pull request retires PowerShellGet v1 content from the documentation, removing all PowerShellGet 1.x and PackageManagement module reference documentation, updating conceptual documentation to focus on v2.x and PSResourceGet, and configuring appropriate redirects for deleted content.

Changes:

• Deleted all PowerShellGet 1.x and PackageManagement cmdlet reference documentation files
• Removed PowerShellGet 1.x moniker mapping configuration
• Deleted and updated conceptual documentation for installing and updating PowerShellGet
• Added redirects for deleted pages to the updated installation guide

Reviewed changes

Copilot reviewed 48 out of 48 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
powershellget-1.x/PowerShellGet/*.md	Deleted 23 PowerShellGet 1.x cmdlet reference files
powershell-gallery/powershellget-1.x/PackageManagement/*.md	Deleted 11 PackageManagement cmdlet reference files
powershell-gallery/mapping/monikerMapping.json	Removed powershellget-1.x moniker configuration
powershell-gallery/docs-conceptual/powershellget/update-powershell-51.md	Deleted Windows PowerShell 5.1 update guide
powershell-gallery/docs-conceptual/powershellget/toc.yml	Restructured TOC to remove separate installation section
powershell-gallery/docs-conceptual/powershellget/overview.md	Updated references to installation guide
powershell-gallery/docs-conceptual/powershellget/install-powershellget.md	Completely rewritten with new instructions for v2.x
powershell-gallery/docs-conceptual/overview.md	Updated links to installation documentation
powershell-gallery/docs-conceptual/how-to/getting-support/bootstrapping-nuget.md	Revised to focus on manual installation of NuGet components
.openpublishing.redirection.json	Added redirects for deleted pages

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[learn-build-service-prod]

PoliCheck Scan Report

The following report lists PoliCheck issues in PR files. Before you merge the PR, you must fix all severity-1 and severity-2 issues. The AI Review Details column lists suggestions for either removing or replacing the terms. If you find a false positive result, mention it in a PR comment and include this text: #policheck-false-positive. This feedback helps reduce false positives in future scans.

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[learn-build-service-prod]

Learn Build status updates of commit e8ca7c0:

✅ Validation status: passed

File	Status	Preview URL	Details
.openpublishing.redirection.json	✅Succeeded	View (>=powershellget-1.x)
powershell-gallery/docs-conceptual/how-to/getting-support/bootstrapping-nuget.md	✅Succeeded	View (>=powershellget-1.x)
powershell-gallery/docs-conceptual/overview.md	✅Succeeded	View (>=powershellget-1.x)
powershell-gallery/docs-conceptual/powershellget/install-powershellget.md	✅Succeeded	View (>=powershellget-1.x)
powershell-gallery/docs-conceptual/powershellget/overview.md	✅Succeeded	View (>=powershellget-1.x)
powershell-gallery/docs-conceptual/powershellget/toc.yml	✅Succeeded
powershell-gallery/docs-conceptual/powershellget/update-powershell-51.md	✅Succeeded	n/a (file deleted or renamed)
powershell-gallery/mapping/monikerMapping.json	✅Succeeded
powershell-gallery/powershellget-1.x/PackageManagement/Find-Package.md	✅Succeeded	n/a (file deleted or renamed)
powershell-gallery/powershellget-1.x/PackageManagement/Find-PackageProvider.md	✅Succeeded	n/a (file deleted or renamed)
powershell-gallery/powershellget-1.x/PackageManagement/Get-Package.md	✅Succeeded	n/a (file deleted or renamed)
powershell-gallery/powershellget-1.x/PackageManagement/Get-PackageProvider.md	✅Succeeded	n/a (file deleted or renamed)
powershell-gallery/powershellget-1.x/PackageManagement/Get-PackageSource.md	✅Succeeded	n/a (file deleted or renamed)
powershell-gallery/powershellget-1.x/PackageManagement/Import-PackageProvider.md	✅Succeeded	n/a (file deleted or renamed)
powershell-gallery/powershellget-1.x/PackageManagement/Install-Package.md	✅Succeeded	n/a (file deleted or renamed)
powershell-gallery/powershellget-1.x/PackageManagement/Install-PackageProvider.md	✅Succeeded	n/a (file deleted or renamed)
powershell-gallery/powershellget-1.x/PackageManagement/PackageManagement.md	✅Succeeded	n/a (file deleted or renamed)
powershell-gallery/powershellget-1.x/PackageManagement/Register-PackageSource.md	✅Succeeded	n/a (file deleted or renamed)
powershell-gallery/powershellget-1.x/PackageManagement/Save-Package.md	✅Succeeded	n/a (file deleted or renamed)
powershell-gallery/powershellget-1.x/PackageManagement/Set-PackageSource.md	✅Succeeded	n/a (file deleted or renamed)
powershell-gallery/powershellget-1.x/PackageManagement/Uninstall-Package.md	✅Succeeded	n/a (file deleted or renamed)
powershell-gallery/powershellget-1.x/PackageManagement/Unregister-PackageSource.md	✅Succeeded	n/a (file deleted or renamed)
powershell-gallery/powershellget-1.x/PowerShellGet/Find-Command.md	✅Succeeded	n/a (file deleted or renamed)
powershell-gallery/powershellget-1.x/PowerShellGet/Find-DscResource.md	✅Succeeded	n/a (file deleted or renamed)
powershell-gallery/powershellget-1.x/PowerShellGet/Find-Module.md	✅Succeeded	n/a (file deleted or renamed)

This comment lists only the first 25 files in the pull request.
For more details, please refer to the build report.

[michaeltlombardi]

LGTM