Taunts!
A major new feature has been added to the game to increase the fun factor - customizable Taunts!
You can customize and save 6 different Taunts for each character - change the character's pose, voice line, and add sound and visual effects! You can then use them ingame on a short cooldown to react to events.
Don't be misled by the name, you can use the new Taunt feature for all kinds of interactions!
Every character also comes with a set of default taunts you can use before setting any up. This feature will finally give more value to one of the oldest sets of unlockables as well - character poses! Unlock more character poses to give your taunts more variety!
You can find the Taunt customization under Player Info -> Taunts.
Other Version 3.9.3 Changes
Version 3.9.3 also brings an updated Santa Scramble event with new rewards, and a massive number of fixes and improvements.
You can find the full list of changes on the forums.