C# release version has still .pdb file

Question

I want to deploy the release version of my application done in C#.

When I build using the Release config, I still can see that .pdb files a

Answer 1

You don't have to ship the .PDBs with your release deployment, but they are useful to keep around - for example you can remotely debug the code running on a different machine using the PDBs on your machine to get the line numbers of where exceptions occur.

Without the use of the .PDBs, line numbers and file names are not included in stacktraces so it makes it much harder to debug them.