ASP.NET Core updates in .NET 8 Preview 3 include many improvements such as server-side rendering with Blazor, sections support in Blazor, and ASP.NET Core support for native AOT. It’s now possible to publish an ASP.NET Core app with native AOT which can have a smaller deployment size, start up very quickly, and use less memory. In addition, this update includes render Razor components outside of ASP.NET Core, monitor Blazor Server circuit activity, SIMD enabled by default for Blazor WebAssembly apps, request timeouts, and short circuit routes. To get started with ASP.NET Core in .NET 8 Preview 3, install the .NET 8 SDK. If upgrading an existing ASP.NET Core app from .NET 8 Preview 2 to .NET 8 Preview 3, update the target framework of the app to net8.0 and all Microsoft.AspNetCore.* and Microsoft.Extensions.* package references to 8.0.0-preview.3.*. For more details on the ASP.NET Core work planned for .NET 8 see the full ASP.NET Core roadmap for .NET 8 on GitHub.
