Update CHANGELOG

CHANGELOG.md

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8eb76ef..2a78c51 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,8 @@
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+### Changed
+- Fixed Clang10 build warning
 
 ## [0.6.0] - 2020-03-09
 ### Added