ASP.NET Core in .NET 10: Major Updates Across Blazor, APIs, and OpenAPI

"Microsoft has detailed the major updates to ASP.NET Core arriving as part of last month's .NET 10 release. As reported, this version delivers extensive improvements across Blazor, Minimal APIs, OpenAPI generation, authentication, and general framework performance. The update is described as one of the most comprehensive ASP.NET Core iterations to date, with changes spanning development, diagnostics, runtime behavior, and security."

"According to Microsoft, Blazor receives the broadest set of enhancements. The team introduced updated security samples for Blazor Web Apps, offering clearer guidance for OpenID Connect, Microsoft Entra ID, and Windows Authentication scenarios. Sample solutions now include separate API projects to demonstrate secure web API calls, and configuration can be supplied through JSON settings files for a more flexible setup."

"Other Blazor improvements include support for client-side fingerprinting, updated QuickGrid features, static asset preloading changes, updated routing behavior, and changes to NavigationManager to prevent unnecessary scrolling. The Blazor template now includes a dedicated reconnection UI component, reflecting stricter Content Security Policy requirements. Support has also been added for new JavaScript interop APIs, expanded state persistence, improved validation, and enhanced WebAssembly diagnostics and performance profiling."

Microsoft's .NET 10 release updates ASP.NET Core with extensive changes spanning development, diagnostics, runtime behavior, and security. Blazor receives the largest set of enhancements, including updated security samples for Web Apps covering OpenID Connect, Microsoft Entra ID, and Windows Authentication, and JSON configuration. Blazor also gains client-side fingerprinting support, QuickGrid improvements, static asset preloading changes, updated routing and NavigationManager behavior to prevent unnecessary scrolling, a reconnection UI in the template, new JavaScript interop APIs, expanded state persistence, improved validation, and better WebAssembly diagnostics and profiling. Minimal APIs, OpenAPI generation, and authentication also receive improvements, and TypedResults.ServerSentEvents can stream JSON heart rate events to clients.

Read at InfoQ