Add OTEP 4321 to the CHANGELOG. (#4447)

carlosalberto · web-flow · commit 51d0e4b9eb5d · 2025-03-14T17:46:26.000+01:00
#4321 needs a CHANGELOG entry.
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -47,6 +47,9 @@ release.
 
 ### OTEPs
 
+- Composite Head Samplers.
+  ([#4321](https://github.com/open-telemetry/opentelemetry-specification/pull/4321))
+
 ## v1.42.0 (2025-02-18)
 
 ### Traces
