ASP.NET Core Roadmap for .NET 10

[mkArtakMSFT]

Discussion thread on the ASP.NET Core Roadmap for .NET 10

[joegoldman2]

I would like to see some progress around Observability.

Native instrumentation support:

• [.NET 9.0] Native Trace Instrumentation Support for ASP.NET Core as per OTel specification #52439

Remove some log scopes that no longer make sense with OpenTelemetry and span attributes:

• Ability to disable ConnectionId and RequestId + RequestPath scopes #31028
• Remove default logging scope from ASP.NET Core #44873

Ability to add attributes to the root activity to facilitate Head Sampling:

• Allow additional Tags for activity creation #50488

[boukenka]

I would like to see some progress for the Consider shipping ObjectGraphDataAnnotationsValidator / ValidateComplexTypeAttribute issue, which has been open since December 14, 2020 (47 up votes so far)

[hez2010]

I would like to see blazor being fully trimming compatible in .NET 10: #49409
As it's the prerequisites of building blazor client apps with NativeAOT-LLVM.

We have experimented NativeAOT-LLVM with Avalonia wasm apps and the performance is way faster than mono-aot, also the binary size is also smaller than mono-aot by a lot. Here is an example of a NativeAOT-LLVM compiled Avalonia app: sizoscopeX, you can test this app with sample-data.zip by selecting both the two files in the archive in the Open dialog to see how fast it is.

I expect blazor to have even better experience, as blazor doesn't use external libraries (like libSkia) for rendering so that the binary size should be a lot smaller than Avalonia.

[BrunoBlanes]

I'd also like to see MVC get support for trimming #41767, at least for controllers, since minimal APIs isn't a fit for everyone.