I have downloaded and installed the new Servoy 8.3 Developer on my iMac (macOS 10.13.4, Java 1.8.0_151).
In the Application direction is now the Eclipse.app instead of Servoy.app (if I upgrade from 8.2.3 to 8.3 the Servoy.app is still there).
When doubleclicking the Eclipse.app the Servoy Developer stuck while starting.
Launch of Servoy 8.3 Developer is working by: Eclipse.app > Contents > MacOS > servoy.