New project development - .NET core version to use?

Question

Hello,

Need advice on which version of .NET core should a new development project target.

We are about to start a new web application development. We recently completed a proof-of-concept based on .NET Core 3.1. We would now like to productize the prototype. Since .NET 6 with LTS was released very recently, I am wondering if we should base our product on the newer version of .NET or stick to 3.1/5.0?

If the suggestion is to use .NET 6, what are the things to consider while migrating the 3.1 prototype to .NET 6.

Answer 1

Hi @Kodavana ,
It is recommended to use .NET 6.
.NET 6 has better performance and can be supported for three years.
You can find what’s new in a variety of scenarios in the blog below.
Announcing .NET 6 — The Fastest .NET Yet
In addition, please make sure that the resources used in your prototype are compatible with .NET 6.
Best Regards.
Jiachen Li

----------

If the answer is helpful, please click "Accept Answer" and upvote it.
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

Answer 2

.net core 3.1 is supported until Dec 3, 2022. .net 5 is supported until May 8, 2022. So based on support dates I would recommend going with .net 6.

Here is a list of breaking changes in .net 6

https://learn.microsoft.com/en-us/dotnet/core/compatibility/6.0

Of course you should look and make sure any nuget packages your prototype uses does not have any compatibility issues with .net 6