Our great sponsors
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IsExternalInit
A source code only package which allows you to use C# 9's init and record features in older target frameworks like .NET Standard 2.0 or the "old" .NET Framework by providing a polyfill for the IsExternalInit class.
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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
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MSBuild.SDK.SystemWeb
This MSBuild SDK is designed to allow for the easy creation and use of SDK (shortform) projects targeting ASP.NET 4.x using System.Web.
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Xamarin.Legacy.Sdk
Starting from a .NET 6 project, adds the ability to target legacy Xamarin target frameworks such as monoandroid11.0 or xamarin.ios10. *Not fully supported*
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WorkOS
The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
It should work for .net framework as well, check out https://github.com/MicrosoftDocs/visualstudio-docs/issues/5291. As per UI way, you've demonstrated it to us in your question :) Click on "Why can't I select a different C# version?" and read through.
…and a NuGet reference to https://www.nuget.org/packages/IsExternalInit, I can then do public record Foo(string s); and have it build.
https://github.com/hvanbakel/CsprojToVs2017 to convert projects to the new format. This is much nicer in multiple ways: VS doesn’t need to reload the project when it changes, version control changes are much less noisy, you get a Dependencies node in Solution Explorer instead of the old References one, etc.
https://github.com/tunnelvisionlabs/ReferenceAssemblyAnnotator to get Nullable Reference Type annotations from .NET 5 backported to Fx