diff --git a/CHANGELOG.md b/CHANGELOG.md
index 313fa09..42dc2dd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,10 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
+## [3.1.0] - 2020-05-06
+### Added
+- Interfaces for Client and Message
+
 ## [3.0.0]
 ### Added
 - Symfony 5 support