Memoji Upgrades & Memoji Stickers
Memoji and Animoji get upgrades for iOS 13. You now automatically get sticker packs that appear based on the Memoji and Animoji that you use. These sticker packs appear in Messages so that you can send a ton of different emoji like sticker responses.
The Memoji creator now allows you to add in way more options. You can add blich, eyeshadow and change the amount and intensity. You can also add braces, a tooth gap and more dental upgrades. There are also piercings, 30 new hairstyles and 15 new types of headwear.
With this update older devices that run an A9 processor or higher can use the Animoji and Memoji sticker packs.
These are all major changes from iOS 12 and represent a new era of Memoji.