Your Program.cs file will work as normal. csproj file and update some NuGet packages: net6.0 Literally, the only changes you will likely need to make are to update the target framework in your. After all, under the hood, the new WebApplication hotness is just using the generic Host. The 'old' style startup using the generic host and Startup is completely supported. NET 6, and you're worried about what to do about Program.cs and Startup.cs, then the simple answer is: don't do anything. So what do I recommend? Option 1: Do nothing

The argument for doing that is sound enough-this is all 'procedural' setup code, so why not just put it in a single 'script-like' file, and avoid unneccessary layers of abstractions? The trouble is that for bigger apps, this file could definitely get chunky. The 'problem', is that the templates (and, to be fair, many of the demos) put all the logic that used to be spread across at least two files and multiple methods into a single file. NET 6 to really make this file as simple as possible, such as global using statements and top level programs, but the new WebApplication types are what really seem to trip people up. There are many C# features that have gone into. NET 5 app goes from two files, Program.cs and Startup.cs, to just one, which contains something like the following: var builder = WebApplication. I've covered the new WebApplication and WebApplicationBuilder types a lot in this post, so if you're not familiar with them at all, I suggest looking at the second post in this series. Most of the questions are around the 'minimal hosting' changes, and 'minimal APIs', and what that means for their existing.

NET 6 which I've described in this series. I've had quite a few emails recently from people about some of the changes introduced in. NET 6's minimal hosting APIs'? Background: Minimal Hosting in. In this short post I tackle a question I have received several times-'how can I update an ASP.NET Core 5 app that uses Startup to.

Adjust mac startup programs