.NET 10 Preview 1 Released

Today, Microsoft released the first preview of .NET 10. As a .NET developer, I downloaded and tested it right away. Let's take a look at what this version brings and my actual test results.

1. .NET 10 Preview 1 Major Updates

Microsoft has brought enhancements to the .NET ecosystem in several areas in this release:

1. Runtime and Base Library Improvements

• Added multiple new APIs for string processing and time-related operations
• Performance and memory usage optimization for ZipArchive
• Support for AVX10.2
• Devirtualization of array interface methods

2. C# Language Features

• nameof support in unbound generics
• Implicit span conversions
• Field-backed properties
• Lambda parameter modifiers support
• Experimental feature: string literals in data sections

3. ASP.NET Core and Blazor

• OpenAPI 3.1 support
• OpenAPI document generation in YAML format
• Syntax highlighting for Blazor route attributes
• QuickGrid component enhancements

4. .NET MAUI

• CollectionView enhancements for iOS and Mac Catalyst
• Android 16 (Baklava) Beta 1 support
• JDK-21 build support

2. My Testing Experience

I immediately performed upgrade tests on the following projects:

1. Avalonia UI project
   • All functional tests passed
   • AOT publish test successful
   • Performance is normal

Reference project: CodeWF.Toolbox

2. Blog website
   • Local debugging runs normally
   • Docker deployment encountered issues temporarily, further debugging needed

Reference project: CodeWF

3. How to Get Started

If you also want to try .NET 10 Preview 1:

1. Download and install the .NET 10 SDK
2. If using Visual Studio, we recommend installing the latest Visual Studio 2022 Preview; for offline installation, refer to the tutorial on Creating an offline installation of Visual Studio
3. VS Code users can install the C# Dev Kit extension

For more details, see the official blog announcement.

I will continue to follow the development progress of .NET 10 and share more practical experiences.