See here for V 1.18 Version document.
Highlights
Storefront
Support UI customization

New design for product images

Brand landing page

Sales orders limitations on shopping cart (personalized or global for all customers)

Admin
Multilingual content on all ecommerce entities (via CMS or import from file)

Editing attributes multilingual data

Set up your desired logic on catalog search via configuration

3rd Party tools
User way - Accessibility tools
Ecommerce analytics events integration
