4.0.0 {groupId} protobuf-parent {version} {artifactId} {type} Protocol Buffers [Kotlin-Core] Kotlin core Protocol Buffers library. Protocol Buffers are a way of encoding structured data in an efficient yet extensible format. {groupId} protobuf-java {version} org.jetbrains.kotlin kotlin-stdlib ${kotlin.version} {dependencies} 1.6.0