How to choose between protobuf-csharp-port and protobuf-net

Question

I\'ve recently had to look for a C# porting of the Protocol Buffers library originally developped by Google. And guess what, I found two projects owned both by two very well

Answer 1

According to it's GitHub project site protobuf-csharp-port has now been folded into the main Google Protocol Buffers project, so it will be the official .NET implementation of protobuf 3. protobuf-net however was last updated in 2013, although there have been some commits recently in GitHub.