.NET 5.0 SDK and Runtime: How to Download and Install on Any Platform
.NET Core 5: What You Need to Know
If you are a developer who works with .NET, you might have heard about the latest release of .NET Core, which is .NET Core 5. This version is a major milestone in the evolution of the .NET platform, as it brings many new features and improvements that make it easier, faster, and more enjoyable to build and run .NET applications.
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In this article, we will give you an overview of what .NET Core 5 is, why you should use it, how to download and install it, and what are some of the key features and benefits that it offers. We will also compare it with the previous versions of .NET, such as .NET Framework and .NET Standard, and show you how to migrate your existing projects to .NET Core 5.
What is .NET Core 5?
.NET Core 5 is the next major release of .NET Core, which is a free, open-source, cross-platform, and modern implementation of the .NET platform. It follows the previous version, which was .NET Core 3.1, released in December 2019.
The name of this version is different from the previous ones, as it drops the word "Core" from the name and uses only ".NET". This is because this version aims to unify the .NET platform and make it the main implementation of .NET going forward. It supports more types of applications and more platforms than .NET Core or .NET Framework.
. NET Core 5 was released in November 2020, along with other related products, such as ASP.NET Core 5.0, Entity Framework Core 5.0, C# 9.0, F# 5.0, and Visual Studio 2019 (v16.9). It is a current release, which means that it will be supported for at least three years after its initial release.
Why use .NET Core 5?
There are many reasons why you should use .NET Core 5 for your development projects. Here are some of the main ones:
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It is cross-platform: You can build and run your applications on Windows, Linux, macOS, and other platforms that support .NET. You can also use different tools and editors, such as Visual Studio, Visual Studio Code, or any other code editor that supports .NET.
It is unified: You can use one platform for all types of applications, such as web apps, desktop apps, mobile apps, cloud services, games, IoT devices, machine learning models, and more. You can also share code and libraries across different projects and platforms.
It is improved: You can benefit from the latest features and enhancements that improve the performance, productivity, security, reliability, and quality of your applications. You can also use the latest versions of C# and F#, which introduce new syntax and capabilities that make your code more expressive and concise.
It is compatible: You can still use your existing skills and knowledge of .NET Framework or .NET Standard, as well as many of the existing libraries and packages that work with them. You can also migrate your existing projects to .NET Core 5 with minimal changes.
How to download and install .NET Core 5?
To download and install .NET Core 5 on your machine, you need to follow these steps:
Go to the official .NET website and choose the download option that suits your needs. You can download the .NET SDK, which includes everything you need to develop and run .NET applications, or the .NET Runtime, which includes only the components you need to run .NET applications. You can also download specific versions of .NET for different platforms and architectures.
Run the installer or extract the files from the downloaded package. Follow the instructions on the screen to complete the installation process. You may need to restart your machine or your code editor to apply the changes.
Verify that .NET Core 5 is installed correctly by opening a command prompt or a terminal and typing dotnet --version. You should see the version number of .NET Core 5, which is 5.0.0 or higher.
Features and benefits of .NET Core 5
.NET Core 5 comes with many features and benefits that make it a powerful and versatile platform for developing and running .NET applications. Here are some of the most important ones:
One of the main advantages of .NET Core 5 is that it supports multiple platforms and architectures, such as Windows, Linux, macOS, ARM, x86, x64, and more. This means that you can build and run your applications on any device or environment that supports .NET, without having to worry about compatibility issues or platform-specific dependencies.
This also means that you can use different tools and editors to work with .NET Core 5, such as Visual Studio, Visual Studio Code, or any other code editor that supports .NET. You can also use various command-line tools and utilities, such as dotnet CLI, PowerShell, Bash, Git, and more.
Unified platform for all types of applications
Another major benefit of .NET Core 5 is that it unifies the .NET platform and makes it a single framework for all types of applications. Whether you want to build web apps, desktop apps, mobile apps, cloud services, games, IoT devices, machine learning models, or anything else, you can use .NET Core 5 as your base platform and leverage its features and libraries.
This also means that you can share code and libraries across different projects and platforms, as well as use common patterns and practices for developing and deploying your applications. For example, you can use ASP.NET Core for building web apps and APIs, Blazor for building web UIs with C#, Xamarin for building mobile apps with C#, ML.NET for building machine learning models with C#, and more.
Improved performance and productivity
.NET Core 5 also brings many improvements in terms of performance and productivity, which make your applications faster, more efficient, and more reliable. Some of these improvements are:
Better memory management and garbage collection: .NET Core 5 uses less memory and allocates less objects on the heap, which reduces the frequency and duration of garbage collection pauses. It also introduces a new feature called Pinned Object Heap (POH), which allows you to allocate objects that are not moved by the garbage collector.
Faster startup time and throughput: .NET Core 5 reduces the startup time of your applications by using a feature called ReadyToRun (R2R), which precompiles your assemblies into native code at build time. It also improves the throughput of your applications by using a feature called Tiered Compilation (TC), which optimizes your code at runtime based on its usage patterns.
Enhanced debugging and diagnostics: .NET Core 5 provides better tools and APIs for debugging and diagnosing your applications, such as Visual Studio Debugger, dotnet-dump, dotnet-trace, dotnet-counters, dotnet-monitor, EventPipe, EventSource, etc. These tools allow you to capture and analyze various types of data from your applications, such as memory dumps, CPU traces, performance counters, logs, metrics, etc.
C# 9 and F# 5 support
.NET Core 5 also supports the latest versions of C# and F#, which are C# 9.0 and F# 5.0 respectively. These versions introduce new syntax and capabilities that make your code more expressive and concise. Some of these features are:
Records: A new type of class that provides value semantics and immutability for your data models. Records allow you to define properties and methods for your data types in a compact way, as well as use features like deconstruction, pattern matching, equality comparison, etc.
Init-only properties: A new way of declaring properties that can only be set during object ini