In the Mattermost Mobile App v2.25 (February 14th release), Mattermost will stop supporting iOS versions 13 and 14. Users should update their iOS version to v15.1 or newer before February 14, 2025.
Why are iOS versions 13 and 14 versions being deprecated?
For the security and stability of our platform, we are updating our dependencies to support React Native v0.76. Starting from React Native v0.76, minIOSVersion will be v15.1. Read more details at React Native 0.75 - Support for Percentage Values in Layout, New Architecture Stabilization, Template & init Updates, and more · React Native.