The OpenTelemetry protocol (OTLP) design goals, requirements, and specification have moved to github.com/open-telemetry/opentelemetry-proto/docs. You can also view the specification from the OpenTelemetry website, see OTLP. For additional OTLP implementation requirements in the OpenTelemetry SDKs, see SDK Exporter.| OpenTelemetry
OpenTelemetry code instrumentation is supported for many popular programming languages| OpenTelemetry