Microsoft Store Commerce customizations Nugets use some outdated dll’s/references

[GoncaloTeixeira]

Microsoft Nugets provided to develop customizations to store commerce use some dll’s, which are not on the latest version available.

For example Microsoft.Dynamics.Commerce.Sdk.Runtime nuget has the following dll version,

Dll name Version in use Latest Version
MicrosoftCSharp.dll 4.0.4.0 4.0.5.0
MicrosoftOpenAPI.dll 1.2.3.0 1.6.10.0
System.Security.AccessControl.dll 4.1.3.0 6.0.0.0
System.Security.Permissions.dll 4.0.0.0 7.0.0.0
System.Security.Principal.Windows.dll 4.1.4.0 5.0.0.0

There is any reason for not using the latest version ? Which one should we support as an ISV solution provider?
We have already a client with this situation and had problems using our package because of these dll been duplicated with multiple versions on the same project.
We have solved the situation updating our Nuget packages with the latest version of these dlls. But as an ISV we can’t support a individual version for each client with a different version of dlls. We need to understand which version should we support and if possible why.

Thanks
Gonçalo Teixeira