Update template metadata for net8

[phenning]

Is there an existing issue for this?

• I have searched the existing issues

Describe the bug

Create new project with NET 8 SDK, net7.0 project is created instead

Expected Behavior

Created projects should target net8.0

Steps To Reproduce

Install NET8.0 SDK
dotnet new web

Exceptions (if any)

No response

.NET Version

No response

Anything else?

No response

[phenning]

Following updates are needed:

Update template.json metadata to increment precedence, identity as appropriate
Update template.json Framework Symbol from net7.0 to net8.0
Update csproj/fsproj TargetFrameworks from net7.0 to net8.0

There are probably some other build infrastructure things that needs to be updated as well to make sure we are generating the correct packages and versions, but this should cover the required metadata updatees

[phenning]

dotnet/installer#14953
dotnet/sdk#29059

[phenning]

Note: same applies to spa templates at https://github.com/dotnet/spa-templates

[mkArtakMSFT]

Thanks @phenning!

[v-elenafeng]

@phenning @mkArtakMSFT All templates have been updated to .net8.0 except the SPA (Angular /React) templates.

Version: 8.0.100-alpha.1.23055.16

[v-elenafeng]

When I create Angular/React with .net7.0 template, the actual created project is .net8.0.

[phenning]

I suspect that some how @dougbu changes to spa haven’t made it into a build yet. A good step would be to inspect the spa template pack installed in the latest 8.0.

[phenning]

@v-elenafeng can you verify that it repos similarly with dotnet new?

[v-elenafeng]

Yes, the same. @phenning

[phenning]

It doesn't look like the changes are in the current build (8.0.100-alpha.1.23059.7). Just installed and neither the SPA repo or aspnet changes are in that build