changelog: Add changelog entry

Author: jorisv

CHANGELOG.md

@@ -6,6 +6,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## [Unreleased]
 
+### Fixed
+
+- Don't use C++14 feature ([#510](https://github.com/stack-of-tasks/eigenpy/pull/510))
+
 ## [3.10.0] - 2024-09-26
 
 ### Added