diff --git a/CHANGELOG.md b/CHANGELOG.md
index a70e380..fb3f341 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -21,6 +21,11 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 - Implement `Display` and `Error` for `StdTimestampError` properly.
 - Remove some redundant `Error` suffixes for enum error variants.
 
+## Added
+
+- Added new marker trait `IsPusTelemetry` implemented by `PusTmCreator` and `PusTmReader`.
+- Added new marker trait `IsPusTelecommand` implemented by `PusTcCreator` and `PusTcReader`.
+
 # [v0.6.0] 2023-07-06
 
 ## Added