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You could use ${callsite} for this. The stacktrace contains the raw format

If someone like to work on this, please do.

This is not planned by us.

Too bad this isn't technical possible.

This is supported by netstandard support in NLog 5.

This is NLog 5 now, which is in beta status

Netstandard will be supported. PCL not.

This has been introduced in NLog 4.3.5

We will supported netstandard, but not shared projects (but PR is accepted when well tested)