--- title: .NET 11 Preview 3 is now available! | daily.dev description: .NET 11 Preview 3 is now available, bringing improvements across the runtime, SDK, libraries, ASP.NET Core, .NET MAUI, C#, Entity Framework Core, and container... canonical: https://daily.dev/posts/net-11-preview-3-is-now-available--lmnwr3zsd twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: .NET 11 Preview 3 is now available! | daily.dev og:description: .NET 11 Preview 3 is now available, bringing improvements across the runtime, SDK, libraries, ASP.NET Core, .NET MAUI, C#, Entity Framework Core, and container... og:url: https://daily.dev/posts/net-11-preview-3-is-now-available--lmnwr3zsd og:image: https://api.daily.dev/og/posts/Lmnwr3ZSD.png og:image:alt: .NET 11 Preview 3 is now available! og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # .NET 11 Preview 3 is now available! **[.NET Blog](https://daily.dev/sources/dotnet)** · 2 min read · 52 upvotes · 2 comments ## Summary .NET 11 Preview 3 is now available, bringing improvements across the runtime, SDK, libraries, ASP.NET Core, .NET MAUI, C#, Entity Framework Core, and container images. Key highlights include: System.Text.Json gains more naming and default-ignore control; Zstandard compression moves to System.IO.Compression; runtime async removes the preview-API opt-in requirement; JIT optimizations improve switches, bounds checks, and casts; WebAssembly gets WebCIL and debugging improvements; the SDK adds file-based app splitting across files and `dotnet run -e` for passing environment variables; ASP.NET Core adds Zstandard response compression and earlier HTTP/3 request processing; .NET MAUI adds map clustering, XAML startup improvements, and Android 17/API 37 preview support; and EF Core improves SQL generation, migrations, and DbContext configuration. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Community discussion Top comments from developers on daily.dev. **@lucasgoularte** · 2 upvotes > Looking at this preview, what caught my attention the most was Zstandard officially landing in `System.IO.Compression` and already showing up in ASPNET Core as response compression. This could be a game changer for anyone dealing with high-throughput data transfer or APIs ## Similar posts on daily.dev - [Microsoft Releases .NET 11 Preview 3 with Updates Across Runtime, SDK, MAUI, and ASP.NET Core](https://daily.dev/posts/microsoft-releases-net-11-preview-3-with-updates-across-runtime-sdk-maui-and-asp-net-core-4tyjhbtqm) · InfoQ · 5 upvotes · 1 comments - [.NET 11 Preview 4 is now available\!](https://daily.dev/posts/net-11-preview-4-is-now-available--rzwoyuciz) · .NET Blog · 38 upvotes · 2 comments --- Tags: [#.net](https://daily.dev/tags/.net), [#c#](https://daily.dev/tags/c#), [#.net-maui](https://daily.dev/tags/.net-maui), [#aspnetcore](https://daily.dev/tags/aspnetcore) [View this post on daily.dev](https://daily.dev/posts/net-11-preview-3-is-now-available--lmnwr3zsd) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":".NET 11 Preview 3 is now available!","url":"https://daily.dev/posts/net-11-preview-3-is-now-available--lmnwr3zsd","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/net-11-preview-3-is-now-available--lmnwr3zsd"},"datePublished":"2026-04-14T19:33:39.834Z","dateModified":"2026-04-14T19:34:00.973Z","description":".NET 11 Preview 3 is now available, bringing improvements across the runtime, SDK, libraries, ASP.NET Core, .NET MAUI, C#, Entity Framework Core, and container...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/dc3bb6afb39fc43d3944d96d464a7ec3?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/dc3bb6afb39fc43d3944d96d464a7ec3?_a=AQAEuop","isAccessibleForFree":true,"articleSection":".NET Blog","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":".NET Blog","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/f23eb59371bd4f07aeef64c4eef73266","url":"https://daily.dev/sources/dotnet"},"commentCount":2,"discussionUrl":"https://daily.dev/posts/net-11-preview-3-is-now-available--lmnwr3zsd","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":52},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":2}],"keywords":".net,c#,.net-maui,aspnetcore","timeRequired":"PT2M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":".NET Blog","item":"https://daily.dev/sources/dotnet"},{"@type":"ListItem","position":3,"name":".NET 11 Preview 3 is now available!"}]} {"@context":"https://schema.org","@type":"WebPage","@id":"https://daily.dev/posts/net-11-preview-3-is-now-available--lmnwr3zsd","comment":[{"@type":"Comment","text":"Looking at this preview, what caught my attention the most was Zstandard officially landing in System.IO.Compression and already showing up in ASPNET Core as response compression. 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