SwiftUIKit 3.3 introduces several new features: a StorageCodable protocol enabling Codable types to work with @AppStorage and @SceneStorage, new list-specific views (ListBadgeIcon, ListCard, ListDragHandle, ListSectionTitle, ListShelfSection), a TextEditorStyle for styling TextEditor like a TextField, and new image utilities including resizing tools and a .symbol() shorthand. The demo app has been removed in favor of improved source code previews.