diff --git a/CHANGELOG.md b/CHANGELOG.md
index f20b80b2bd7..4b3cd8d7ff7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,10 @@ release.
 
 ### Traces
 
+- Clarify `StartSpan` returning the parent as a non-recording Span when no SDK
+  is in use
+  ([#2121](https://github.com/open-telemetry/opentelemetry-specification/pull/2121))
+
 ### Metrics
 
 - Rename None aggregation to Drop.