diff --git a/CHANGELOG.md b/CHANGELOG.md
index e4a64611c0b..abfef205927 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,6 +12,7 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 
 - Starting from `v1.21.0` of semantic conventions, `go.opentelemetry.io/otel/semconv/{version}/httpconv` and `go.opentelemetry.io/otel/semconv/{version}/netconv` packages will no longer be published. (#4145)
 - Log duplicate instrument conflict at a warning level instead of info in `go.opentelemetry.io/otel/sdk/metric`. (#4202)
+- Reject the creation of new instruments if their name doesn't pass regexp validation. (#4210)
 
 ## [1.16.0/0.39.0] 2023-05-18