The new version of Threema for Android includes some design tweaks, e.g., handy date separators in chats, as well as a streamlined group and chat management (tap and hold a chat in the chat overview to see all available options).
Furthermore, the 3.5 update adds support for Threema Web 2.0. The new web-client version improves performance, allowing for even faster and smoother navigation. “My ID” settings can now be accessed and adjusted directly in the browser (by clicking on your name).
The 2.0 update prepares the web client to be used via the iOS app. The beta test of Threema Web for iOS has entered the final stage.