0.0.16.0

was released on the 11th of September 2018 and was succeeded by 0.0.17.0.

Changes
This update was more of a technical update so you wouldn't notice a lot of changes in-game. Although the most notable changes are:
 * A Launcher Update
 * New Server-Side API
 * New Login/Register System
 * Moved from Key to Verification System
 * Changes to Server Joining

Related
Reddit Thread