Add changelog.

jsuereth · jsuereth · commit de9dd473b625 · 2025-12-15T11:57:39.000-05:00
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -23,6 +23,9 @@ release.
 
 ### Entities
 
+- Define merge algorithm.
+  ([4768](https://github.com/open-telemetry/opentelemetry-specification/pull/4768))
+
 ### OpenTelemetry Protocol
 
 ### Compatibility
