A new Threema version for iOS has just hit the App Store. The 4.5 update contains numerous small, yet useful, enhancements.
Quoting messages is now as easy as swiping right. The new Leave Group menu item in the group details allows to leave groups without deleting them, and you can now conveniently share contacts (in the detail view) by means of Share Links.
The user interface has also undergone some refinements. For instance, in-app-notifications now contain image previews. On iOS 13, Threema adheres to the system-wide Appearance setting (in Settings > Display & Brightness), which allows to automatically switch the theme at sunrise and sunset.
On top of that, this update includes several other improvements and bug fixes. To get an overview of all changes and additions, please refer to the changelog.