diff --git a/CHANGELOG.md b/CHANGELOG.md
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--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,17 @@
 # Mattermost Mobile Apps Changelog
 
+## 1.15.1 Release
+- Release Date: December 28, 2018
+- Server Versions Supported: Server v4.10+ is required, Self-Signed SSL Certificates are not supported unless the user installs the CA certificate on their device
+
+### Combatibility
+
+ - Mobile App v1.13+ is required for Mattermost Server v5.4+.
+ - Android operating system 7+ [is required by Google](https://android-developers.googleblog.com/2017/12/improving-app-security-and-performance.html).
+ 
+### Bug Fixes
+ - Fixed an issue preventing some users from logging in using OKTA.
+
 ## 1.15.0 Release
 - Release Date: December 16, 2018
 - Server Versions Supported: Server v4.10+ is required, Self-Signed SSL Certificates are not supported unless the user installs the CA certificate on their device