Available today: The Windows 11 2022 Update 

his is the last preview for .NET 7 and the next version will be our first release candidate (RC). 

This preview of .NET 7 includes improvements to type converters, JSON contract customization, System.Formats.Tar API updates, constraints to .NET template authoring, and performance enhancements in the CodeGen area. 

Today we released .NET 7 Preview 5. This preview of .NET 7 includes improvements to Generic Math which make the lives of API authors easier, a new Text Classification API for ML.NET that adds state-of-the-art deep learning techniques for natural language processing, various improvements to source code generators and a new Roslyn analyzer and fixer for RegexGenerator and multiple performance improvements in the areas of CodeGen, Observability, JSON serialization / deserialization and working with streams. 

Introducing .NET MAUI - One Codebase, Many Platforms 

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. 

The fourth preview of .NET 7 includes enhancements to observability in the .NET implementation of OpenTelemetry, the addition of properties to track microseconds and nanoseconds in date and time structures, new metrics for caching extensions, performance-boosting “on stack replacement,” APIs to work with .tar archives, and additional features as part of an ongoing effort to improve the performance of and add features to regular expressions in .NET 7.  

ReSharper and Rider 2022.1.1 bug fixes have landed 

start experimenting with new features like:

• Native AOT
• Default GC regions
• ASP.NET Core startup time improvements 

Announcing .NET 7 Preview 2 - The New, 'New' Experience - .NET Blog