diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2b85e07..81d3f6e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,9 +6,17 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
-## [unreleased]
+# [unreleased]
 
-## [v0.1.0] 16.08.2022
+## Added
+
+- Basic support for ECSS enumeration types for u8, u16, u32 and u64
+
+## Changed
+
+- Better names for generic error enumerations: `PacketError` renamed to `ByteConversionError`
+
+# [v0.1.0] 16.08.2022
 
 Initial release with CCSDS Space Packet Primary Header implementation and basic PUS TC and TM
 implementations.