What’s New in Asp.Net Core 6.0

Debasis Saha

Print 7 min read

14 Aug 2022

Beginner

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Introduction

Today, in this article we will discuss the Asp.Net Code 6.0. Asp.Net Core is not a new one which introduction in the .NET 6.0. But with .NET 6.0, Microsoft introduced many new features or functionality within the Asp.Net Core which will help the developer during their development process. As we know, Microsoft release the Asp.Net Core 6.0 version on November 8, 2021. ASP.NET Core is introduced as a new version of ASP.NET by Microsoft. Asp.Net Core is an open-source framework for developing any type of web application which can be hosted on any operating system, like Windows, Mac, or Linux. ASP.NET Core application can run on both .NET CORE and traditional .NET Framework (.NET framework 4.x). Asp.Net Core is a cross-platform, high-performance, open-source framework for building modern, cloud-based, internet-connected applications.

Overview of .Net 6.0

On November 8, 2021, Microsoft officially release the long-term stable version .Net 6.0. It includes around 10000 git commits. Through this release, now .Net 6.0 natively supports Apple Silicon (mac OS Arm64) for the first time. And also, it provides improved support for the Windows Arm64 based operating systems. .Net 6.0 brings lots of new features along with massive gains in performance and optimization. Some of the new features related .Net 6 are mentioned below lists -.

Hot Reload allows viewing code changes in real-time without the need to restart the app.
Open Telemetry and dotNet monitor support.
It provides Improvements for Visual Basic and Windows form-related project experience.
Improvement in render capability for Blazor components from JavaScript.
WebAssembly AOT compilation for Blazor WebAssembly apps.
HTTP/3 support
Provide Supports related to symbolic links in File IO
Support for OpenSSL, the ChaCha20Poly1305 encryption scheme, and runtime defense-in-depth mitigations
Source generators and analyzers
Performance is greatly increased across the framework.
It supports C# 10 which offers many languages improvements
Also, F# 6 added newly as a new Features

The below image shows the details of .Net Core versions –

With the help of .Net 6, we can develop applications and host them into all the major platforms like cloud, browser, desktop, IoT, and mobile apps. Since it is a cross-platform framework so that application code can be reused for all types of operating systems like Windows, Mac OS, and Linux. In this release, .NET Multi-platform App UI (.NET MAUI) is one of the exciting. With the help of this cross-platform framework, we can create native mobile and desktop apps using C# and XAML. And, finally, by using .NET MAUI, users can develop applications that can run on Android, iOS, iPad, macOS, and windows.

What’s New in Asp.Net Core 6.0

Asp.Net Core 6.0 is also released along with .Net 6.0 by Microsoft. As we know that, ASP.NET Core is a cross-platform, high-performance, open-source framework through which we can develop modern, cloud-enabled, Internet-connected apps. With the help of ASP.NET Core, we can perform the below types of development activity –

Can develop web apps and services, Internet of Things (IoT)apps, and server-side part of mobile applications.
We can use our favorite development tools on different systems like Windows, macOS, and Linux.
We can deploy the application to any cloud environment or on-premises servers.

In Asp.Net Core 6.0, the below features have been introduced as new features –

NET Core 6.0 provides many improvements on MVC and Razor Framework. Some of the most important improvements are –
- Minimal APIs: - Now, creating a new ASP.Net Core Web API-based application is required just a few lines of code with the help of the latest C# features along with minimal dependencies.
- Major Improvements in the SignalR Performance.
- Razor Compiler:- Now, in the new version Razor Compilers are updated to use source generators. Source generators execute during the compilation process and finalize what needs to be compiled to generate additional files which will be compiled along with the rest of the project. With the help of source generators, build times reduces for the applications.
- In Asp.Net Core 6.0, Razor Compiler no longer produces or generates separate views related to assembly. As we all know that, in earlier versions, Razor Compiler used a two-step compilation process to generate Views assembly which normally contains the generated Views and pages (.cshtml files) within the applications. These generated types are public and use the AspNetCore namespace. But now, in Asp.Net Core 6.0, Razor Compiler builds both Views and Pages types into the main project assembly as an internal sealed type (it is the default) and uses the AspNetCoreGeneratedDocument namespace. With the help of this new feature, build performance improved, and also we can enable a single file deployment concept.
In Asp.Net Core 6.0, the system reduces the size of System.IO.Pipelines.pipe from 368 bytes to 264 bytes. For every connection that's established, two pipes are allocated in Kestrel.
Hot reload: In Asp.net code 6.0, Hot Reload is introduced as a new feature. It means we can apply changes to Razor, C#, and CSS source lines into your handling operation during development time without rebuilding and resuming the operation.
Async streaming: Asynchronously stream data from the server without buffering.
IAsyncDisposable Supported: In Asp.Net Core 6.0, now we can use the IAsyncDisposable also for controllers, pages, models, and view components.
Bootstrap 5.1: For any type of Web Application in ASP.NET Core 6.0, we can use the support of Bootstrap 5.1.
Null-state Analysis: Now, all ASP.NET Core 6.0 templates have C# null-state analysis enabled automatically by default.
JavaScript Modules: Places related to JavaScript modules alongside pages, views using .cshtml.js and .razor.js lines.
Net Core 6.0 provides supports related to latin1 encoded request headers in HttpSysServer.
Developer exception page Middleware is added automatically in this version while you create the applications.
.NET WebAssembly Build Tools: Ahead-of-time (AOT) compilation for Blazor WebAssembly applications, as well as support for runtime relinking and native dependencies.
Single-page applications: Built-in support for Angular 12 and React 17 based on a flexible template pattern that can be used with other front-end JavaScript frameworks.
Socket Control: More control over socket creation and handling.
Strongly-typed Headers: Access HTTP headers in a strongly-typed way.
HTTP & W3C Logging: Log HTTP traffic, and log using the W3C Extended Log File Format.

Also, in Asp.Net Core 6.0, new features introduced into the WebApp based Templates like –

Now, in Web-Based Application templates, Startup.cs and Program.cs files converted into a single file called Program.cs file.
Now, we can reduce the number of files and lines of code required to create a web application.
We can use top-level statements to minimize the lines of code required for the application.
We can use the global using directives so that it can eliminate or minimize the number of using statement lines required in the application.
Also, we can use the new minimal hosting model for web applications.

In Asp.net Core 6.0, Microsoft also provides some improvements related to the Blazor Frameworks –

Now, we can render the Blazer components using JavaScript.
Now, in a Blazer-based application, we can preserve the prerendered state of the application related to any value.
We can now define the customer event-based arguments.
Now, we can define any component parameters as a required value.
Also, we can define the query-string-based parameters in Blazer components.
Also, now in Blazer Application, we can dynamically render components.

Conclusion

Asp.net Core 6.0 has been released with many new features and functionality. In this article, we discuss the overview and features of the Asp.net Core 6.0. We also discussed the overview of the .Net 6.0. Any suggestions or feedback or query related to this article are most welcome.