Big News: .NET 10 Preview 3 is Here!

Last week, the .NET Team unveiled the highly anticipated third preview release of .NET 10, packed with a treasure trove of updates that span the entire .NET ecosystem. From the runtime to ASP.NET Core, Blazor, and beyond, this release promises to supercharge developer productivity, enhance application performance, and provide unparalleled flexibility.

C# 14's Power Surge: Enhanced Extension Members!

C# 14 arrives with a bang, introducing groundbreaking enhancements to extension members. Developers can now enjoy static methods, instance properties, and static properties, unlocking a world of new capabilities. The introduction of a fresh extension block syntax allows for a more streamlined approach, letting developers define methods and properties directly in a context that exposes contained member access.

Here’s a glimpse of how this could look:

```csharp public static class Extensions { extension(IEnumerable<int> source) { public IEnumerable<int> WhereGreaterThan(int threshold) => source.Where(x => x > threshold); public bool IsEmpty => !source.Any(); } } ```

Say Goodbye to Null Checks: Null-Conditional Assignment!

The introduction of null-conditional assignment is a game changer. Now, developers can assign properties or fields only if the instance exists, streamlining code and eliminating tedious null checks.

ASP.NET Core's State Persistence: A Major Leap!

ASP.NET Core gets a massive upgrade with a new declarative model for component and service state persistence. With the `SupplyParameterFromPersistentComponentState` attribute, state can now be seamlessly persisted during prerendering and automatically loaded when rendering components interactively.

Here's a sneak peek at how developers can leverage this functionality:

```razor @page "/movies" @inject IMovieService MovieService <PageTitle>Movies</PageTitle> <h3>Movies</h3> @if (MoviesList == null) { <p><em>Loading...</em></p> } else { <QuickGrid Items="MoviesList.AsQueryable()"> <PropertyColumn Property="@(m => m.Title)" Title="Title" Sortable="true" /> <PropertyColumn Property="@(m => m.ReleaseDate)" Title="Release Date" Sortable="true" /> <PropertyColumn Property="@(m => m.Genre)" Title="Genre" Sortable="true" /> <PropertyColumn Property="@(m => m.Price)" Title="Price" Sortable="true" /> </QuickGrid> } @code { [SupplyParameterFromPersistentComponentState] public List<Movie>? MoviesList { get; set; } protected override async Task OnInitializedAsync() { MoviesList ??= await MovieService.GetMoviesAsync(); } } ```

Blazing Fast Blazor: Enhanced Performance and Features!

Blazor WebAssembly climbs to new heights with features like referencing fingerprinted static web assets for improved cache management and response streaming for HttpClient enabled by default. This means optimal memory management, especially for large responses!

Revamping .NET MAUI: Big Changes Ahead!

.NET MAUI's third preview release rolls out essential updates, deprecating ListView, Cell, and TableView controls. Fullscreen video capabilities in Android WebViews are now a reality, along with a new Geolocation.IsEnabled property to simplify geolocation checks.

Streamlined Authentication and Enhanced Performance!

Developers will also appreciate being able to pass a CancellationToken to `WebAuthenticator.AuthenticateAsync` for tighter control over authentication processes. With performance tweaks to PropertyMapper and CollectionView rendering, applications are set to run faster than ever!

WPF and Windows Forms: Quality and Speed Improvements!

WPF receives boosts in performance and quality, featuring fluid style changes for a smoother user experience. Meanwhile, Windows Forms sees quality enhancements across controls, ensuring continued alignment with .NET 10.

Entity Framework Core 10: Azure Cosmos DB Just Got Easier!

The new Preview 3 of Entity Framework Core 10 simplifies working with Azure Cosmos DB for NoSQL, automatically assigning default values to required properties, thus saving developers valuable time. Plus, logging improvements enhance security while handling sensitive data.

All Aboard: .NET for Android, iOS, and Beyond!

Finally, .NET 10 Preview 3 streamlines development across Android, iOS, Mac Catalyst, macOS, and tvOS. Android development benefits from quality upgrades and faster builds, while iOS support for Xcode 16.3 ensures your tools are top-notch.

In summary, .NET 10 Preview 3 is an absolute must-explore for developers eager to harness the latest technology advancements. Don't wait—dive in and elevate your coding experience today!