Protobuf //UE5/Main/Engine/Source/ThirdParty/Protobuf Protocol Buffers (a.k.a., protobuf) are Google's language-neutral, platform-neutral, extensible mechanism for serializing structured data. https://github.com/protocolbuffers/protobuf/blob/master/LICENSE Licensees Git P4 /Engine/Source/ThirdParty/Licenses