Clarify OTLP server components MUST support none/gzip compression. (#…

…1955)
open-telemetry · Sep 29, 2021 · 517d74a · 517d74a
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -64,6 +64,8 @@ release.
 - Add environment variables for configuring the OTLP exporter protocol (`grpc`, `http/protobuf`, `http/json`) ([#1880](https://github.com/open-telemetry/opentelemetry-specification/pull/1880))
 - Allow implementations to use their own default for OTLP compression, with `none` denotating no compression
   ([#1923](https://github.com/open-telemetry/opentelemetry-specification/pull/1923))
+- Clarify OTLP server components MUST support none/gzip compression
+  ([#1955](https://github.com/open-telemetry/opentelemetry-specification/pull/1955))
 
 ### SDK Configuration
 

diff --git a/specification/protocol/otlp.md b/specification/protocol/otlp.md
@@ -70,6 +70,11 @@ OTLP is a request/response style protocols: the clients send requests, the
 server replies with corresponding responses. This document defines one requests
 and response type: `Export`.
 
+All server components MUST support the following transport compression options:
+
+* No compression, denotated by `none`.
+* Gzip compression, denoted by `gzip`.
+
 ### OTLP/gRPC
 
 **Status**: [Stable](../document-status.md)