C# 11 is the next version of C# coming in .NET 7, and it is introducing a warning wave that issues a warning when a type is declared with all lower-case letters. This is being done so that in the future the language can begin moving away from conditional keywords and instead use full on keywords instead. The warning is alerting customers to types that may become keywords in future versions. 

Today is the official GA release for .NET 5, and along with it we are excited to share the latest updates with our recent release of C#/WinRT version 1.0. C#/WinRT provides WinRT projection support for .NET 5 based apps. The Windows SDK leverages this technology and is now integrated with the .NET 5.0 SDK to expose Windows APIs through the new Target Framework Monikers. In addition to the Windows SDK support added for .NET 5, C#/WinRT itself allows component authors to build their own .NET 5 projections using the CsWinRT NuGet package.  

Internet Information Services (IIS) 10.0 Express is a free, simple and self-contained version of IIS that is optimized for developers. IIS 10.0 Express makes it easy to use the most current version of IIS to develop and test websites. IIS 10.0 Express has all the core capabilities of IIS 10.0 and additional features to ease website development.

The benefits of using IIS 10.0 Express include:

• The same web server that runs on your production server is now available on your development computer.
• Most tasks can be done without the need for administrative privileges.
• IIS Express runs on Windows 7 Service Pack 1 and all later versions of Windows.
• Many users can work independently on the same computer. 

Supported Windows Versions

Windows Client versions: Windows 11, Windows 10 version 21H2, Windows 10 version 21H1, Windows 10 version 20H2

Windows Server versions: Windows Server 2022 

Available today: The Windows 11 2022 Update 

 The latest version of SQLite has been released with support for JSON and indexes on expressions. 

What Windows 11 Means for Developers 

How to Enable TPM for Windows 11 and Solve Compatibility Issues 

There are two MySQL providers for Entity Framework Core:
- The official one from MySQL: MySql.Data.EntityFrameworkCore. As of now, the latest version is 8.0.19, and works with Entity Framework Core 2.1 (and probably also 2.2). Since EF Core 3.0 is a major version with breaking changes, you cannot use it with this provider.
- The Pomelo provider: Pomelo.EntityFrameworkCore.MySql. There is a 3.1 version of this provider.
In other words, if you want to use EF Core 3.0/3.1 with MySQL, at this point you need to use the Pomelo provider (or wait for the official MySQL one to get released).