1.1.172 includes the Winter Event. Here are all the items:
All items are obtainable in the Winter Event.
Here is a quick rundown of what's in this update
You can now customize the eyes of the Shrimp
New Endurance Selection Screen
Added Skin Variant System which shows on the new Ginger Shrimp Skin
Two new tracks "Ice Dice" and "Blizzard Wizard" are added
Faster Loading Times!
False Car Fixes
New Game Mode called "Portal Run"
Happy Holidays! And Happy Shrimping!