Questions tagged [.net-6.0]

For questions about Microsoft's .NET application development framework that are specific to version 6.0+ of the framework. Use only If your question are version-specific

For the original announcement of .NET 6, and for more detailed information, please refer to the official communication from Microsoft.


.NET 6 delivers the final parts of the .NET unification plan that started with .NET 5. .NET 6 unifies the SDK, base libraries, and runtime across mobile, desktop, IoT, and cloud apps.

is the next big release to the .NET family after .NET 5.

was released November 8th, 2021.

The first preview was made available on February 17th, 2021.

General Improvements :

In addition to this unification, the .NET 6 ecosystem offers:

  • LTS Release: .NET 6 is Supported for three years as the latest long term support (LTS) release.

  • Simplified development : Getting started is easy. New language features in C# 10 reduce the amount of code you need to write. And investments in the web stack and minimal APIs make it easy to quickly write smaller, faster microservices.

  • Better performance : .NET 6 is the fastest full stack web framework, which lowers compute costs if you're running in the cloud.

  • Ultimate productivity : .NET 6 and Visual Studio 2022 provide hot reload, new git tooling, intelligent code editing, robust diagnostics and testing tools, and better team collaboration.


Whats New :

  • C# 10 : All new C# 10 offers language improvements such as record structs, implicit using, and new lambda capabilities, while the compiler adds incremental source generators.

  • F# 6 : F# 6 adds new features including Task based async, pipeline debugging and numerous performance improvements.

  • Minimal APIs : Simplify getting started experience and HTTP services performance improvement.

  • Hot Reload : This feature enables you to skip rebuilding and restarting your app to view a new change — while your app is running — supported in Visual Studio 2022 and from the .NET CLI, for C# and Visual Basic.

  • .NET MAUI : .NET Multi-platform App UI (.NET MAUI) is still in preview, with a release candidate coming in the first quarter of 2022 and general availability (GA) in the second quarter of 2022. .NET MAUI makes it possible to build native client apps for desktop and mobile operating systems with a single codebase.

  • Blazor : ASP.NET Core in .NET 6 improves Blazor. Blazor components can now be rendered from JavaScript and integrated with existing JavaScript based apps.

  • File IO : File IO in .NET 6 has support for symbolic links and has greatly improved performance with a re-written-from-scratch FileStream.

  • Production stress-tested : Production stress-tested with Microsoft services, cloud apps run by other companies, and open source projects.

  • HTTP/3 : .NET 6 includes preview support for HTTP/3, a new version of HTTP. HTTP/3 solves some existing functional and performance challenges by using a new underlying connection protocol called QUIC. QUIC establishes connections more quickly, and connections are independent of the IP address, allowing mobile clients to roam between Wi-fi and cellular networks. For more information, see Use HTTP/3 with HttpClient.

Offical Links

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.NET 6 how to run Migration automatically in program.cs

In .Net 5, we use to be able to call the migration by passing DataContext to Configure method and call the migration in startup class. public void Configure(IApplicationBuilder app, IWebHostEnvironment env, DataContext dataContext) { // migrate…
fereshteh rabet
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Why is 'net6.0-windows' sub folder created?

I am using visual studio 2022 and created a winforms .net 6 application. I specified an output path for my release build where i want the .exe created, but visual studio creates a subfolder called 'net6.0-windows' and puts the exe in there. How do i…
Possibility
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Migrating to .NET 6.0 error on publish: Assets file doesn't have a target for 'net5.0'

I'm trying to migrate from .NET 5 to .NET 6. I've installed VS 2022 Community Preview and the Hosting Bundle... and updated everything in NuGet. The project will build without errors but when I go to publish it, I get the following error: Assets…
Velocedge
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.NET 6 project in Visual Studio offers update NuGet packages to 7.0.0

I have a .NET 6 ASP.NET Core project in VS 2022 and wonder if there is a way not to get .NET 7 packages in my NuGet update list? Or am I supposed to update NutGet packages to 7.0.X? What is the best practice?
Karel Kral
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Migrate from .net standard to .net 6 using the upgrade tool

I tried upgrading a .NET standard project to a .NET 6 project using this upgrade assistant tool: https://dotnet.microsoft.com/en-us/platform/upgrade-assistant/tutorial/install-upgrade-assistant I ran the tool as the steps describe (installing it,…
CodeMonkey
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How to use AddHttpClient in .NET 6 Worker Service

Is there an alternative way to add the "AddHttpClient()" setting in the .NET 6 Worker Service template? In Minimal APIs for example we have available: var builder = WebApplication.CreateBuilder(args); builder.Services.AddHttpClient(); In the Worker…
Assis Zang
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How to implement IApiVersionDescriptionProvider to Program.cs in .NET 6

I'm using .NET 6. I'm doing make Versioning for my Web API Core. And I got stucked when implementing the IApiVersionDescriptionProvider into Program.cs. Beacuse of when creating a new project ASP.NET Core Web API, there only the program.cs file.…
Nguyen Nhan
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.net 6 BuildServiceProvider is missing

net 6, create console application with 'minimal template'. try add DI but BuildServiceProvider is missing. I try google about how migrate ServiceCollection but did not find nothing. var services2 = new ServiceCollection(); var serviceProvider =…
padavan
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.NET 6 System.Drawing.Common Runtime Switch

According to https://learn.microsoft.com/en-us/dotnet/core/compatibility/core-libraries/6.0/system-drawing-common-windows-only System.Drawing.Common is no longer supported under on non-windows OS UNLESS a runtime configuration switch is set. I've…
Kevin Micallef
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.NET Core 6 Found multiple publish output files with the same relative path

I'm running into a relatively new issue on .NET Core 6 where when publishing with Web Deploy via Visual Studio 2022. I'm receiving the following error: Error Found multiple publish output files with the same relative…
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Hot Reload not working in Visual Studio 2022 .Net 6 Razor projects

We just upgraded all but one of our web app projects from .NET Core 3.1 projects to .NET 6 in our solution. These were ASP.NET Core 3.1 projects using Razor. Here are the results we're seeing with respect to Hot Reload: The .NET 6 projects hot…
user3002092
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Console Logging in .NET Core 6?

Using .NET 6 Core for a console app and I can't get debug logging working (nothing is displayed). And, I have added Microsoft.Extensions.Logging.Console to the project. You'll see two ways below that I've attempted to get a reference to the…
a11smiles
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Disabling .NET 6 features per default

When creating a new project in VS 2022 with .NET 6, following new features are added automatically: Top-Level Statements Implicit Usings and Nullable References Is there a way to create a .NET 6 project without top-level-statements (a workaround…
A.B.
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error the in razor.g.cs file, can't find in VS, can't find the _razor.g.cs file

I'm getting "; expected" error in my .razor file and in _razor.g.cs file, In previous blazor versions I was finding these g.cs files in the solution folder, now I can't find them there, and double clicking on the error message in VS doesn't point me…
buga
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How to setup Serilog with Azure Functions v4 correctly?

I want to use Serilog in an Azure Function v4 (.net 6) (the logs should be sent to Datadog). For this I have installed the following nuget packages:
mikehachen
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