From eb805a4d59a9cf1f3c35af8527fc31f3274964ce Mon Sep 17 00:00:00 2001
From: Lukas Koch <lukas.koch@physics.ox.ac.uk>
Date: Fri, 20 Aug 2021 16:21:53 +0100
Subject: [PATCH] Update changelog for release.

---
 CHANGELOG.md | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 19a4493..261ea9f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [2.2.0]
+
+### Added
+- Added support for for stacks of PlottableHistograms.
+
 ## [2.1.0]
 
 ### Added