Updating nuget packages in all projects in a solution

Question

As found in NuGet documentation, you can type:

Update-Package

This will :

Update all packages in all projects of the current solution to the
latest versions.

To open the Package Manager Console:

Tools > NuGet Package Manager > Package Manager Console

Now, in order to have only one instance of all packages, I have, in my solution folder, a file named nuget.config that contains:

<configuration>
  <config>
    <add key="repositoryPath" value="..\Path\To\My\Packages" />
  </config>
</configuration>

You might need to reload your solution in order to make it work properly.