Worked on the open-telemetry/opentelemetry-specification repository to clarify the default protocol behavior for OTLP, focusing on improving documentation and reducing ambiguity for SDK authors and downstream users. Delivered a targeted update specifying that http/protobuf is generally the default protocol, while grpc may remain the default in certain SDKs for backward compatibility. This change, implemented using Markdown, aligned with existing specification governance and release processes, ensuring traceability and accuracy. The update enhanced the clarity of integration points across languages and runtimes, supporting long-term interoperability and ease of adoption for the OpenTelemetry ecosystem. No bug fixes were recorded during this period.