How to use C# 11 features in .NET 6 or older versions (even .NET Framework 2.0)

• ReferenceAssemblyAnnotator

  6 70 0.0 C#

  IL weaver to add nullability annotations to .NET reference assemblies

  

EDIT: A reader reached me about this cool package that partially solves this problem by injecting nullable reference type annotations in CLR's methods of some assemblies (check the docs for more details): ReferenceAssemblyAnnotator.

• PolySharp

  12 1,631 7.1 C#

  PolySharp provides generated, source-only polyfills for C# language features, to easily use all runtime-agnostic features downlevel. Add a reference, set your C# version to latest and have fun! 🚀

⚠️ Because PolySharp uses source generators, it doesn't work with the package.config file as stated in this issue. The issue says we need to use the SDK style .csproj, but just changing from package.config to Package Reference worked for me.

• InfluxDB

  www.influxdata.com featured

  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.

  

• CSharpNewestFeatures

  1 2 10.0 C#

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