diff --git a/CHANGELOG.md b/CHANGELOG.md
index cd7f100bba..82b7a06c9e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,9 @@ All notable changes to this project will be documented in this file based on the
 
 ## [Unreleased](https://github.com/ruflin/Elastica/compare/2.1.0...HEAD)
 
+### Improvements
+- `CallbackStrategy` now will accept any `callable` as callback, not only instance of `Closure`. [#871](https://github.com/ruflin/Elastica/pull/871)
+
 ## [2.1.0](https://github.com/ruflin/Elastica/releases/tag/2.1.0) - 2015-06-01
 
 ### Added