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A .NET guideline specifies that an application should never throw a NullReferenceException. However, many applications and libraries do. The NullReferenceException is the most common exception happening. That’s why C# 8 tries to get rid of it. With C# 8, reference types are not null be default. This is a big change, and a great feature. However, what about all the legacy code? Can old libraries be used with C# 8 applications, and can C# 7 applications make use of C# 8 libraries?

This article demonstrates how C# 8 allows mixing old and new assemblies. 

.NET 6 Release Candidate 1 (RC1) is now available and includes many great new improvements to ASP.NET Core. 

At this moment, there is a 0.2.0 alpha version of Microsoft.AspNetCore.SignalR.Server that makes it possible to use SignalR with an ASP.NET Core application 

This release brings continued improvements to the C# and .NET experiences, new Git performance and experiences, updates for C++ developers, and new Azure tools for local development and deployment. We also continue to address your direct feedback submitted via Developer Community, addressing over 400 feedback items in this release! You can see the broader list of community feedback addressed in releases by visiting the fixes page on Developer Community. 

A developers guide to running WPF apps on Linux with .NET Core and Wine 

Microsoft is planning to make Windows 10 PCs work without passwords. While the company has been working on removing passwords from Windows 10 and its Microsoft Accounts for a number of months now, the next major update to Windows 10 next year will go one step further.

This article shows how to use MySQL with ASP.NET Core 1.0 using Entity Framework Core. 

The fourth preview of Entity Framework Core (EF Core) 8 is available on NuGet today!

Basic information

EF Core 8, or just EF8, is the successor to EF Core 7, and is scheduled for release in November 2023, at the same time as .NET 8.

EF8 previews currently target .NET 6, and can therefore be used with either .NET 6 (LTS) or .NET 7. This will likely be updated to .NET 8 as we near release.

EF8 will align with .NET 8 as a long-term support (LTS) release. See the .NET support policy for more information.