Updating the ASP.Net Application from .Net 4.5 to .Net 4.8

Question

Am going to update my ASP.Net MVC/WebApi project from .NET4.5 to .NET 4.8 due to the server upgrade. Do I really need to update the nugetpackages since all are targeting the .Net4.5 framework?. Can anyone suggest what are the other things that I should consider for this upgrade?

Answer 1

here are the upgrade issues:

https://learn.microsoft.com/en-us/dotnet/framework/migration-guide/runtime/4.5.2-4.8

as there are runtime difference, I'd update the nuget packages to highest framework they support. this should be either 4.6 or standard 2.0. I'd alway pick the standard 2.0 version if supported.

if you cleanup all the nuget packages you should be able to remove the BCL libraries and remove from the build. I'd also upgrade any separate projects to the new project file format and netstandard 2.0 if possible. Unfortunately the new format does not support asp.net projects.

Answer 2

Hi @Mathankumar Rajendran,

For package issues, you can check:How to reinstall and update packages

There are three ways to update a nuget package.

Package Manager console (described in Using Update-Package)	Update-Package command	Update-Package -reinstall command
Package Manager UI	On the Updates tab, select one or more packages and select Update	On the Installed tab, select a package, record its name, then select Uninstall. Switch to the Browse tab, search for the package name, select it, then select Install).
nuget.exe CLI	nuget update command	For all packages, delete the package folder, then run nuget install. For a single package, delete the package folder and use nuget install <id> to reinstall the same one.

For more details you can refer to: Migration Guide.

Best regards,
Lan Huang

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