.NET 11 Preview 5 is now available! - .NET Blog
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.NET Team
Today, we are excited to announce the fifth preview release of .NET 11! This release includes improvements across the .NET Runtime, SDK, libraries, ASP.NET Core, .NET MAUI, C#, Entity Framework Core, and more. Check out the linked release notes below and get started today.
Download .NET 11 Preview 5
This release contains the following improvements.
📚Libraries
System.Text.Json supports JSON Lines serialization
LINQ adds full outer joins
Cryptography adds X25519 key agreement
Random adds generic numeric APIs
See all library updates
⏱️Runtime
Runtime-async suspension is faster
JIT optimizations
GC trimming and compaction improvements
See all runtime updates
🛠️ SDK
File-based apps can reference other C# files
SDK vulnerability and EOL checks are available during build
dotnet new includes the MCP Server template
Console apps include System.Net.Http.Json by default
See all SDK updates
C#
Closed class hierarchies
Union declarations and union patterns
Unsafe Evolution
See all C# updates
🌐 ASP.NET Core
Blazor SSR supports client-side validation
QuickGrid works without interactivity
Blazor WebAssembly Gateway
SupplyParameterFromSession for Blazor
See all ASP.NET Core updates
📱 .NET MAUI
Reliability and platform-fix wave lands in .NET 11
Animations get CancellationToken-aware overloads
Windows Maps gains a real implementation backed by Azure Maps
.NET for Android stabilizes API 37
See all .NET MAUI updates
🎁 Entity Framework Core
dotnet ef supports file-based apps
SQL Server 2022 compatibility is now the default
EF1004 warns when async EF queries run synchronously
Query translation produces cleaner SQL
See all EF Core updates
🚀 Get started
To get started with .NET 11, install the .NET 11 SDK.
If you’re on Windows using Visual Studio, we recommend installing the latest Visual Studio 2026 Insiders. You can also use Visual Studio Code and the C# Dev Kit extension with .NET 11.
Category<br>.NET<br>.NET MAUI<br>ASP.NET Core<br>C#<br>Entity Framework
Topics<br>.NET 11<br>Featured
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