yes, unless you disable the default nuget.org package source in LINQPad's NuGet settings window. That is, to say, when you open the LINQPad NuGet Manager, you can choose which package repository to search - LINQPad will check your installed packages for updates from that package source at the same time.
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That is, to say, when you open the LINQPad NuGet Manager, you can choose which package repository to search - LINQPad will check your installed packages for updates from that package source at the same time.