The C# compiler (Roslyn) supports deterministic builds since Visual Studio 2015. This means that compiling assemblies under the same conditions (permalink) would produce byte-for-byte equivalent binaries.
If you also intend on shipping non-portable (permalink) PDBs, you must also make sure that paths in the PDBs are absolute using path mapping. The recommended way would be to map the enlistment (repo) root to a fixed path, such as C:\
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For more information, see this blog post