[Alexandre Zollinger Chohfi (azchohfi)]

Moves the dotnet new template pack (Microsoft.WindowsAppSDK.WinUI.CSharp.Templates) from 0.0.7-alpha to 0.0.8-alpha. Like #6510 and #6729, this is a one-line change to dev/Templates/Dotnet/WinAppSdk.CSharp.DotnetNewTemplates.csproj.

Why

0.0.7-alpha is already on NuGet.org; it was built from main at #6786. The official template pipeline packs the csproj <Version> verbatim (see build/AzurePipelinesTemplates/WindowsAppSDK-DotnetNewTemplates-Stages.yml), and NuGet.org won't accept a version it already has. Until the version moves, nothing merged under dev/Templates/Dotnet since #6786 can reach dotnet new / winapp new users.

What 0.0.8-alpha picks up

Template changes merged after #6786:

• Add Reactor single-file app template (reactor-singlefile) #6844 Add Reactor single-file app template (reactor-singlefile)
• Merge all the .NET .vstemplate based templates to use dotnet new templates #6874 Merge all the .NET .vstemplate based templates to use dotnet new templates
• Remove headers from Dotnet templates #6894 Remove headers from Dotnet templates
• Clamp negative TitleBar.RightInset in TabView templates #6869 Clamp negative TitleBar.RightInset in TabView templates
• Adds .NET 11, and removes deprecated net8+9 #6903 Adds .NET 11, and removes deprecated net8+9
• Require .NET SDK 10.0+ for .NET 10+ templates #6914 Sets the template constraint to .NET 10+
• Add packaging options to .NET WinUI and Reactor templates #6905 Add packaging options to .NET WinUI and Reactor templates
• Fix MVVMTK0045 warnings in the MVVM app template #6923 Update code to .NET 10 syntax
• Enables the reactor templates in Visual Studio #6930 Enables the reactor templates in Visual Studio
• Templates: Adds support for MTP test runner + unpackaged options in unit test template #6885 MTP test runner + unpackaged options in unit test template
• Reactor templates: drop the Microsoft.WindowsAppSDK metapackage reference #6845 Reactor templates: drop the Microsoft.WindowsAppSDK metapackage reference (Microsoft.UI.Reactor 0.1.0-preview.17 default)

Because of #6903 and #6914, the 0.0.8-alpha templates require .NET SDK 10 or later. The packed README already says so.

Validation

• Packing the csproj locally produced Microsoft.WindowsAppSDK.WinUI.CSharp.Templates.0.0.8-alpha.nupkg. Its nuspec version is 0.0.8-alpha, and it contains all 18 templates.
• Template content is unchanged from main (5fb487d). The pack from Templates-PR build 163016615 was built from the Reactor templates: drop the Microsoft.WindowsAppSDK metapackage reference #6845 merge and has the same template tree as main. Every Reactor case was scaffolded, built (0 warnings, 0 errors), launched, and rendered its UI on .NET SDK 10.0.403 with Microsoft.UI.Reactor 0.1.0-preview.17 from NuGet.org: blank, mvu, navview, and tabview, each Packaged and Unpackaged, plus reactor-singlefile.
• 0.0.8-alpha is not on NuGet.org yet.

Queuing the official build and the NuGet publish is a separate step after this merges.

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[Alexandre Zollinger Chohfi (azchohfi)]

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