diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6e70405..cc27617 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,13 @@ Chrono obeys the principle of [Semantic Versioning](http://semver.org/).
 There were/are numerous minor versions before 1.0 due to the language changes.
 Versions with only mechnical changes will be omitted from the following list.
 
+## ?0.4.3?
+
+### Features
+* Added methods to DateTime/NaiveDateTime to present the stored value as a number
+  of nanoseconds since the UNIX epoch (@harkonenbade #247)
+* Added a serde serialise/deserialise module for nanosecond timestamps. (@harkonenbade #247)
+
 ## 0.4.2
 
 ### Deprecations