.NET Framework Security Updates

Question

OS Version: Windows Server 2012R2

Reference: Security and Quality Rollup KB4579979.

The parent KB4579979 contains four child KBs for various versions of .NET Framework, as shown below:

KB4578953 .NET Framework 3.5
KB4578956 .NET Framework 4.5.2
KB4578962 .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2
KB4578976 .NET Framework 4.8

My question is, when you install the parent update, does it install all of the child KBs, or only the specific components applicable to your build?

Answer 1

Hi,Phil-9511

KB4579979 is an old KB, it is replaced with the four KBs, you can choose the version of KB depends on your .NET Framework version:
Search the KB and download the specific version in this site

No need to install all the KBs. If you are using framwork 4.8, you just need to download KB4578976.

And this is the official link:
kb4579979

Best Regards,
Jerry Cai

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Answer 2

Yes, Windows Update only install the required/applicable child updates from the rollup

if you want to install manually, then you would need the .NET 3.5 update + .NET 4.x update according to your current version (ideally 4.8)