diff --git a/CHANGELOG.md b/CHANGELOG.md
index f359c6b633f..89ea6750bd4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Unreleased
 
+- Allow bytes as attributes
+  ([#3605](https://github.com/open-telemetry/opentelemetry-python/pull/3605))
+
 ## Version 1.22.0/0.43b0 (2023-12-15)
 
 - Prometheus exporter sanitize info metric ([#3572](https://github.com/open-telemetry/opentelemetry-python/pull/3572))