diff --git a/CHANGELOG.md b/CHANGELOG.md
index fdb2cb24c..58490f465 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,16 @@
 # Mattermost Mobile Apps Changelog
 
+## 1.21.2 Release
+- Release Date: August 1, 2019
+- Server Versions Supported: Server v5.9+ is required, Self-Signed SSL Certificates are not supported unless the user installs the CA certificate on their device
+
+### Combatibility
+ - Android operating system 7+ [is required by Google](https://android-developers.googleblog.com/2017/12/improving-app-security-and-performance.html).
+ - iPhone 5s devices and later with iOS 11+ is required.
+
+### Bug Fixes
+ - Fixed an issue where the mobile apps logged out without a session expiry notification.
+
 ## 1.21.1 Release
 - Release Date: July 22, 2019
 - Server Versions Supported: Server v5.9+ is required, Self-Signed SSL Certificates are not supported unless the user installs the CA certificate on their device