
Unveiling .NET 10 Preview 5: Enhanced Features for Developers!
2025-06-28
Author: Charlotte
Microsoft Launches .NET 10 Preview 5 With Exciting New Features
This month, Microsoft has dropped an exciting update with the release of .NET 10 Preview 5, improving various components such as ASP.NET Core, .NET MAUI, WPF, and Entity Framework Core. This release focuses on boosting developer productivity and enhancing application observability.
Revolutionary ASP.NET Core Features
One of the standout features is the ability for developers to configure custom security descriptors for HTTP.sys request queues. This means greater control over access at the operating system level, a crucial advantage for ensuring security.
Additionally, the validation resolver APIs for Minimal APIs are now in experimental mode, paving the way for the possibility of future enhancements, while the primary AddValidation APIs continue to remain stable.
Moreover, OpenAPI generation has been upgraded to support version 3.1, enhancing metadata extraction and recognizing essential XML documentation tags for clearer response descriptions.
Blazor Framework Gets Even Better
The Blazor framework is also strengthening its offerings with a new method for rendering Not Found pages. Developers can now easily define a NotFoundPage component within the router configuration, improving the usability and clarity of web applications.
Preview 5 also brings remarkable metrics and tracing capabilities specifically for Blazor apps. Metrics are published for components, lifecycle events, and server circuits, while tracing adds detailed instrumentation capabilities for navigation and event handling.
Sleek XAML Simplifications in .NET MAUI
In .NET MAUI, developers will love the new support for XAML Global and Implicit Namespaces, simplifying markup and allowing for cleaner code without repetitive xmlns declarations. This means less clutter and more maintainable XAML!
Furthermore, the ability to intercept web requests in HybridWebView has been introduced, empowering developers to modify or block requests easily, enhancing control over web interactions.
WPF Enhancements and Entity Framework Core Updates
WPF brings a game-changer with a shorthand syntax for Grid.RowDefinitions and Grid.ColumnDefinitions, making XAML more concise and increasing Hot Reload support.
And it doesn't stop there! Entity Framework Core 10 Preview 5 allows developers to define custom names for default constraints, providing better control over database schema generation, allowing for a tailored database architecture.
Performance Upgrades and Globalization Enhancements
This update also focuses on improvement across the board, with added font and globalization enhancements like the simsun-extg font for better rendering in East Asian languages. The Fluent theme has been refined, rectifying crashes and enhancing styling for RTL layouts, not to mention impressive performance gains through reduced memory allocations.
Join the Adventure!
With these groundbreaking updates, .NET 10 Preview 5 is set to take the developer experience to new heights! Whether you’re a seasoned pro or just starting out, this preview is a must-try. Dive into the future of .NET development today!