Rx for net10.0-windows

[mahara]

I'd like to ask whether this will be updated to support net10.0-windows (WPF 10) in 7.x (or possibly 6.x).

https://github.com/dotnet/reactive/blob/main/Rx.NET/Source/src/System.Reactive/System.Reactive.csproj

[idg10]

Are you finding any problems with using it with .NET 10.0 today? We've supported .NET 10 since .NET 10 shipped.

If you look at the test project:

reactive/Rx.NET/Source/tests/Tests.System.Reactive/Tests.System.Reactive.csproj

Line 4 in 687a7e8

<TargetFrameworks>net472;net8.0;net8.0-windows10.0.19041;net9.0;net9.0-windows10.0.19041;net10.0;net10.0-windows10.0.19041</TargetFrameworks>

you can see that our test suite already runs tests against the net10.0-windows10.0.19041 TFM.

Do not be fooled by the fact that the System.Reactive package specifies a .NET 8.0 TFM—.NET 10 fully supports loading packages whose TFM specifies an older version. And since there's nothing Rx.NET needs to do differently on .NET 10.0 vs .NET 8.0, there would be absolutely no point in building an additional .NET 10-only TFM. (We would only do that if .NET 10 enabled us to add some feature to Rx.NET that couldn't possibly work on .NET 8.0.)

Your application will need to specify Windows 10.0.19041 or later if you want to use the WPF support. A TFM of net10.0-windows actually means Windows 7.0. Rx.NET uses some features that are unavailable in versions of Windows older than 10.0.19041, which is why Rx.NET's WPF features are only available if you specify that Windows version or higher. (That's the version of Windows 10 that shipped in May 2020, which is pretty old now. We don't support running WPF on modern .NET on anything older.)