.NET 10 Preview 5 is now available! - .NET Blog (original) (raw)

Today, we are excited to announce the fifth preview release of .NET 10 with enhancements across the .NET Runtime, SDK, libraries, C#, ASP.NET Core, Blazor, .NET MAUI, and more. Check out the full release notes linked below and get started today.

This release contains the following improvements.

📚Libraries

• Post-Quantum Cryptography (PQC)
• Full Release Notes

⏱️Runtime

• Escape Analysis for Delegate
• Inlining Improvements
• ARM64 Write Barrier Improvements
• Full Release Notes

🛠️ SDK

• No new features added in this preview release.

C#

• User defined compound assignment operators
• Full Release Notes

F#

This release you will find updates across the F# language including scoped #nowarn/#warnon, FSharp.Core standard library, and FSharp.Compiler.Service.

Visual Basic

• No new features added in this preview release.

🌐 ASP.NET Core & Blazor

• Configure custom security descriptors for HTTP.sys request queues
• Validation resolver APIs marked as experimental
• Support for generating OpenAPI 3.1
• OpenAPI metadata from XML doc comments
• Add a Not Found page using the Blazor Router
• Blazor metrics and tracing
• Full Release Notes

📱 .NET MAUI

• XAML Global Namespaces
• XAML Implicit Namespaces
• Intercept web requests
• Full Release Notes
• Full list of quality improvements on dotnet/maui GitHub releases.

🤖 .NET for Android

This release was focused on quality improvements and build performance. A detailed list can be found on dotnet/android GitHub releases.

🍎 .NET for iOS, Mac Catalyst, macOS, tvOS

This release was focused on quality improvements and build performance. A detailed list can be found on dotnet/macios GitHub releases including a list of Known issues.

🖥️ Windows Forms

This release was focused on quality improvements and build performance. A detailed list can be found in release notes.

🖥️ Windows Presentation Foundation (WPF)

• XAML Grid Syntax Enhancements
• Font and Globalization Updates
• Fluent Theme Improvements
• Full Release Notes

🎁 Entity Framework Core

• Custom Default Constraint Names
• Full Release Notes

📦 Container Images

• No new features added in this preview release.

🚀 Get started

To get started with .NET 10, install the .NET 10 SDK.

If you’re on Windows using Visual Studio, we recommend installing the latest Visual Studio 2022 preview, which now includes GitHub Copilot agent mode and MCP server support. You can also use Visual Studio Code and the C# Dev Kit extension with .NET 10.

📦 Join a .NET community standup

Join us each week and engage with the developers and product managers behind .NET for community standups.

📢 .NET 10 Discussions

The team has been making monthly announcements alongside full release notes on the dotnet/core GitHub Discussions and has seen great engagement and feedback from the community.

🔔 Stay up-to-date with .NET 10

You can stay up-to-date with all the features of .NET 10 with:

• What’s new in .NET 10
• What’s new in C# 14
• What’s new in .NET MAUI
• What’s new in ASP.NET Core
• What’s new in Entity Framework Core
• What’s new in Windows Forms
• What’s new in WPF
• Breaking Changes in .NET 10
• .NET 10 Releases

Additionally, be sure to subscribe to the GitHub Discussions RSS news feed for all release announcements.

We want your feedback, so head over to the .NET 10 Preview 5 GitHub Discussion to discuss features and give feedback for this release.

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