Hi @Venkatajalapathy K , Welcome to Microsoft Q&A,
Sorry I could not answer all your questions.
Second question How to work with local folder's and gallery's - Nupkg:
https://learn.microsoft.com/en-us/nuget/reference/cli-reference/cli-ref-sources
According to this, the local path can be directly filled in with the path where nupkg is located. How to specify nugetgallery is also written here.
Fourth question:
https://learn.microsoft.com/en-us/nuget/api/overview#versioning
According to this document, the actual use of v2 v3 api is related to the nuget tool. Whether it can be used depends on whether the installed nuget tool supports it. Please see the documentation for details.
Best Regards,
Jiale
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