Migrate .Net Framework 4.5.2 / 4.8.1 to .NET 8

HECTOR HERNANDEZ F 20

Greetings.

I received a Microsoft Azure mail about Retirement notice for .NET 6 (installed on Windows Server 2022) in order to update to .NET 8. I have two Web Programs, working with .Net Framework 4.8.1 and 4.5.2. is it required to migrate to .NET 8?, I'm not working with any .NET 6 reference on these programs, I work with .Net Framework in native way.

Please let me know any comments. Many thanks in advance for your help.

Hector H.

Accepted answer

SurferOnWww 3,536 Reputation points

2024-12-21T05:49:13.3466667+00:00

I have two Web Programs, working with .Net Framework 4.8.1 and 4.5.2. is it required to migrate to .NET 8?

It depends.

Unless you need the features available in the .NET 8.0, how about upgrading only .NET Framework 4.5.2 application to 4.8.1?

Support of .NET 8.0 will end on Nov 10, 2026 while .NET Framework 4.8.1 will be supported as long as it is installed on a supported version of Windows. Please see the following documents:

Microsoft .NET and NET Core

Microsoft .NET Framework

.NET Framework Support Policy

If your applications are ASP.NET Web Forms, there will be no choice other than staying on .NET Framework.
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HECTOR HERNANDEZ F 20 Reputation points

2024-12-21T20:02:58.6633333+00:00

Greetings Surfer.

Many thanks in advance for your help. Please other question: If I uninstall .NET 6 from windows server 2022 and install .NET 8, any of them will affect .Net Framework 4.8?, this program comes as Windows Server 2022 feature, including ASP.NET features for this .Net Framework. I want know if .NET # will change or not the .Net Framework libraries that I'm using form my web programs.

Many thanks, again, in advance for your help.

Bruce (SqlWork.com) 68,636 Reputation points

2024-12-21T21:41:38.5066667+00:00

unlike 4.* framework, .net core installs are side by side. .net 6 and .net 8 are separate independent installs. even minor updates are separate installs.

also unlike 4.* if you install .net 8 and remove .net 6, an application targeting .net 6 will not run.
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Migrate .Net Framework 4.5.2 / 4.8.1 to .NET 8

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