Mobile v2.21 Changelog

source/about/mobile-app-changelog.md

@@ -5,6 +5,31 @@
 
 This changelog summarizes updates to Mattermost mobile apps releases for [Mattermost](https://mattermost.com).
 
+(release-v2-21-0)=
+## 2.21.0 Release
+ - Release Date: October 16, 2024
+ - Server Versions Supported: Server v9.5.0+ is required. Self-Signed SSL Certificates are not supported unless the user installs the CA certificate on their device.
+
+### Compatibility
+ - **Upgrade to server version v9.5.0 or later is required.** Support for server [Extended Support Release](https://docs.mattermost.com/upgrade/extended-support-release.html) (ESR) v8.1.0 has ended and upgrading to server ESR v9.5.0 or later is required. As we innovate and offer newer versions of our mobile apps, we maintain backwards compatibility only with supported server versions. Users who upgrade to the newest mobile apps while being connected to an unsupported server version can be exposed to compatibility issues, which can cause crashes or severe bugs that break core functionality of the app.
+ - Android operating system 7+ [is required by Google](https://android-developers.googleblog.com/2017/12/improving-app-security-and-performance.html).	
+ - iPhone 6s devices and later with iOS 13.4+ is required.
+
+### Improvements
+ - Removed unneeded permissions on Android.
+ - Improved metrics around notifications.
+
+### Bug Fixes
+ - Fixed an issue with handling of malformed Markdown tables.
+ - Fixed an issue where Calls buttons and actions were not hidden if the plugin was not enabled.
+
+### Open Source Components
+ - 
+
+### Known Issues
+ - Users are unable to adjust the font size via the OS font size setting.
+ - Some Google Pixel phones on Android 12+ might not continue past the login screen. This is a known issue with the OS, and the current workaround is to restart the device.
+
 (release-v2-20-0)=
 ## 2.20.0 Release
  - Release Date: September 16, 2024