diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7a086372..495b6543 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,18 @@
 # Changelog
 
 <!-- insertion marker -->
+## [v2.2.0](https://github.com/NiaOrg/NiaPy/releases/tag/v2.2.0) - 2024-05-17
+
+<small>[Compare with 2.1.0](https://github.com/NiaOrg/NiaPy/compare/2.1.0...v2.2.0)</small>
+
+### Added
+
+- add example code ([de3a522](https://github.com/NiaOrg/NiaPy/commit/de3a5229dfd366634ab0321e6421ba9817519450) by zStupan).
+
+### Removed
+
+- Remove TestingTask class ([d783f69](https://github.com/NiaOrg/NiaPy/commit/d783f69f6049c9baa6dc79189c47e1ac16d96a75) by zStupan).
+
 ## [2.1.0](https://github.com/NiaOrg/NiaPy/releases/tag/2.1.0) - 2023-12-19
 
 <small>[Compare with 2.0.5](https://github.com/NiaOrg/NiaPy/compare/2.0.5...2.1.0)</small>
diff --git a/docs/source/changelog.rst b/docs/source/changelog.rst
index 5ee5a45e..8c308492 100644
--- a/docs/source/changelog.rst
+++ b/docs/source/changelog.rst
@@ -5,12 +5,34 @@ Changelog
 
    <!-- insertion marker -->
 
+`v2.2.0 <https://github.com/NiaOrg/NiaPy/releases/tag/v2.2.0>`__ - 2024-05-17
+-----------------------------------------------------------------------------
+
+\ `Compare with
+2.1.0 <https://github.com/NiaOrg/NiaPy/compare/2.1.0...v2.2.0>`__\ 
+
+Added
+~~~~~
+
+-  add example code
+   (`de3a522 <https://github.com/NiaOrg/NiaPy/commit/de3a5229dfd366634ab0321e6421ba9817519450>`__
+   by zStupan).
+
+Removed
+~~~~~~~
+
+-  Remove TestingTask class
+   (`d783f69 <https://github.com/NiaOrg/NiaPy/commit/d783f69f6049c9baa6dc79189c47e1ac16d96a75>`__
+   by zStupan).
+
 `2.1.0 <https://github.com/NiaOrg/NiaPy/releases/tag/2.1.0>`__ - 2023-12-19
 ---------------------------------------------------------------------------
 
 \ `Compare with
 2.0.5 <https://github.com/NiaOrg/NiaPy/compare/2.0.5...2.1.0>`__\ 
 
+.. _added-1:
+
 Added
 ~~~~~
 
@@ -45,6 +67,8 @@ Fixed
    (`ab71ddc <https://github.com/NiaOrg/NiaPy/commit/ab71ddcd5b840fdc4032eeec44d37f9be8be91c0>`__
    by zStupan).
 
+.. _removed-1:
+
 Removed
 ~~~~~~~