What’s new in Microsoft .NET 6

Nancy J. Delong

Microsoft has released the 3rd preview of .Internet six, the future technology of the company’s software improvement system that will finish the pieces of the .Internet unification started in .Internet 5.

Thanks as a creation launch in November, .Internet six is established to supply advancements for cloud, desktop, and cellular applications. Preview two was released March eleven, next the initial preview that arrived February seventeen. Regular previews are planned between now and the creation launch, which will be supported for three many years. Just about every preview will supply on .Internet six themes, epics, and person tales for developing server/cloud, desktop, IoT, and cellular programs.

Microsoft .Internet six will combine abilities for Android, iOS, and MacOS that at the moment reside in the Xamarin open source cellular .Internet system. Microsoft also is extending the Blazor customer website app improvement tool, so builders can develop a hybrid customer app that combines website and indigenous UIs for desktop and cellular usage. Blazor WebAssembly was the to start with unified system deliverable in .Internet 5. Released in November 2020, .Internet 5 marked the starting of unification and laid the groundwork for Xamarin builders to use the unified .Internet system when .Internet six. arrived.

The .Internet unification produces just one .Internet from the individual .Internet Main, .Internet Framework, and Xamarin/Mono systems. Components of .Internet Framework previously had moved to .Internet Main .Internet 5 started the journey of combining .Internet Main and Mono/Xamarin on a base class library and toolchain.

Preview four is downloadable from dotnet.microsoft.com. Announced May possibly twenty five and prepared for genuine environment tests, Preview four establishes a solid base for the final .Internet six develop, having concluded features and ordeals. “Go live” builds, which are supported in creation, are anticipated in August.

In its bulletin on Preview four, Microsoft cited eight themes for .Internet six:

  • Appealing to new builders and students.
  • A good customer improvement working experience.
  • Being identified as a persuasive framework for developing cloud indigenous applications.
  • Providing easier and much more predictable styles for applying .Internet with mission-vital applications and much more carefully catering to the demands of substantial business and governing administration prospects.
  • Bettering “inner loop” efficiency for .Internet builders, with productiveness advancements for develop efficiency, sizzling restart, and sizzling reload.
  • Growing the .Internet ecosystem as a result of elevated assurance, good quality, and help.
  • Bettering startup and throughput applying runtime execution data.
  • Conference developer anticipations.

New features in Preview four contain:

  • Advancements to Very hot Reload, furnishing an working experience to make edits in source code even though the code is managing without needing to manually pause an app or strike a breakpoint. Developer productiveness is enhanced. With this launch, Very hot Reload is effective for lots of forms of applications such as WPF, Home windows Forms, WinUI, ASP.Internet, Console Apps, and other frameworks on top of the CoreCLR runtime. The technology also is to be brought to WebAssembly, iOS, and Android applications that operate on Mono at a later day.
  • Text.Json help for IAsyncEnumerable, enabling Program.Text.Json (de)serialization with IAsyncEnumerable objects. Program.Text.Json now supports serializing IAsyncEnumerable objects as JSON arrays.
  • The writeable JSON DOM characteristic as a easy and significant-efficiency programming product for Text.Json, furnishing an API to avoid complexity of serialization and the traditional charge of a DOM.
  • Substantially enhanced FileStream efficiency on Home windows.
  • A LoggerMessageAttribute variety source-generates performant logging APIs.
  • Linq enhancements with new APIs.
  • RyuJIT compiler advancements.
  • Improved day, time, and time zone help.
  • For IL (intermediate language) trimming, warnings are enabled by default. Trim warnings apprise builders about spots the place trimming might take out code that is employed at runtime.
  • One-file application publishing advancements like enhanced assessment to make it possible for for custom made warnings.
  • One-file bundles now help compression.
  • Built-in SDK edition checking is offered.
  • Crossgen2, to make and improve code by using forward-of-time compilation, is now enabled by default when publishing ReadyToRun pictures.

Preview three, unveiled on April 8, featured the next additions and advancements:

  • A new unsafe API, CollectionsMarshal.GetValueRef, helps make updating struct values in dictionaries more quickly. This API is supposed for significant-efficiency situations.
  • Interface casting efficiency has been enhanced by sixteen % to 38 %, which is significantly practical for C# sample matching to and between interfaces.
  • Code technology has been enhanced in RyuJIT by using numerous adjustments, to make the method much more successful or ensuing code operate more quickly.
  • Early help for .Internet Very hot Reload became available for ASP.Internet Main and Blazor projects applying dotnet observe. This was the to start with phase in a much more detailed strategy to convey this technology to all .Internet builders, supporting desktop improvement, cross-system customer situations in .Internet MAUI (Multi-system Application UI), and much more.

Preview two, released March seventeen, featured API and library advancements, runtime efficiency boosts, and early builds of .Internet MAUI (Multi-system Application UI), which is a modern day UI toolkit that builds on Xamarin. Microsoft’s bulletin on Preview two also emphasised themes for the system such as increasing “inner loop” efficiency, i.e., optimizing the instruments and workflows employed commonly and frequently by builders to update, develop, and exam their code. Very hot reloads, for instance, will improve developer productiveness by enabling code to be edited even though an app is managing, even without a debugger attached. Runtime startup efficiency, application styles, the dotnet CLI, and MSBuild are also acquiring focus as portion of the interior loops concept.

Yet another concept is increasing the customer app improvement working experience, like a much more unified cellular products for .Internet. As portion of this work, iOS, Android, and MacOS improvement will be built-in into the .Internet SDK working experience and use .Internet libraries. In addition, the Xamarin.Forms cross-UI framework is evolving into .Internet MAUI, which will make it possible for builders to create applications for Android, Home windows, and MacOS from the exact codebase. Blazor applications will operate natively on Home windows and MacOS by using .Internet MAUI.

Microsoft also touted the addition of APIs and advancements to .Internet libraries. For instance, JsonSerializer (Program.Tex.Json) now supports the capability to ignore cycles when serializing an object graph, even though PriorityQueue is a new assortment that permits the addition of new items with a value and a precedence. Preview two also brought far better parsing of typical numeric formats as perfectly as runtime and JIT advancements.

Preview 1 introduced Android and iOS as the to start with two platforms supported in MAUI. Long term previews will insert MacOS and Home windows desktop help. Blazor, which is created on top of MAUI, depends on the UI stack for a indigenous application container and indigenous application container controls.

Copyright © 2021 IDG Communications, Inc.

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