Issues of .NET

Below are the main repos you can use to file bugs and feature requests for .NET. Please try to find the repo that is most closely related to your issue. But don't sweat it too much -- we'll transfer the issue to the appropriate repo should you get it wrong.

.NET Framework
Dev Community	Report isssues to .NET Framework Developer Community
microsoft/dotnet-framework-docker	.NET Framework Docker images
.NET Core
Runtimes and libraries
dotnet/core	.NET Core home repository
dotnet/runtime	.NET Core runtime, runtime installers, application model, & Base Class Library (BCL)
dotnet/docs	.NET documentation
dotnet/dotnet-api-docs	.NET API documentation
dotnet/extensions	.NET extension APIs (DI, logging, configuration, etc.)
dotnet/dotnet-docker	.NET Core Docker images
dotnet/standard	.NET Standard definition
dotnet/wcf	WCF client libraries
Entity Framework (EF) and data access
dotnet/efcore	EF Core
dotnet/ef6	EF 6
dotnet/EntityFramework.Docs	EF Core & EF 6 documentation
dotnet/sqlclient	SqlClient data provider for SQL Server
Machine Learning and AI
dotnet/machinelearning	ML.NET
dotnet/machinelearning-modelbuilder	ML.NET tooling
dotnet/ml-api-docs	ML.NET API documentation
dotnet/spark	.NET for Apache® Spark™
Client UI
dotnet/winforms	Windows Forms
dotnet/wpf	Windows Presentation Foundation (WPF)
dotnet/maui	.NET Multi-platform App UI
dotnet/docs-maui	.NET Multi-platform App UI documentation
Web
dotnet/aspnetcore	ASP.NET Core framework
dotnet/AspNetCore.Docs	ASP.NET Core documentation
dotnet/AspNetDocs	ASP.NET 4.x documentation
dotnet/Scaffolding	ASP.NET Core code generators
dotnet/websdk	MSBuild tasks & targets for ASP.NET Core apps
Languages
dotnet/roslyn	Roslyn (C# / VB compiler)
dotnet/csharplang	C# suggestions, specification, ongoing language design
dotnet/vblang	VB suggestions, specification, ongoing language design
dotnet/fsharp	The F# compiler, FSharp.Core library, and tools for F#
fsharp/fslang-design	RFCs and docs related to the F# language design process
fsharp/fslang-suggestions	F# language and FSharp.Core library suggestions
Tooling and SDK
dotnet/project-system	Visual Studio project system for C#, F#, & VB
dotnet/sdk	.NET Core SDK (used by Visual Studio & .NET Core CLI)
dotnet/installer	.NET Core installer (produces zips, tarballs, and installers for the .NET SDK)
dotnet/templating	Templating engine used by dotnet new
dotnet/test-templates	.NET Core unit testing project templates
dotnet/msbuild	Build platform for .NET & Visual Studio
nuget/home	NuGet client
nuget/nugetgallery	NuGet.org