How to update nuget package manager?

How to update nuget package manager?, someone asked me to explain?

Go to tool menu in visual studio and select Library package manager and click Package manager console. If you want to check whether new updates are available for the installed package then, 

PM->Get-Package –Updates


If you wanted to update the specific package, enter Update package with package Id. For example here I am updating jQuery package, 

PM->Update-Package jQuery

If you entered command without any parameter it will update every package installed in your project. For more help enter,  

PM->get-help update-package

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