The following is extracted from this link --> Apple Intelligence is available today on iPhone, iPad, and Mac - Apple (IN)
"More Natural and Conversational Siri
Siri becomes more natural, flexible, and deeply integrated into the system experience. It has a brand-new design with an elegant glowing light that wraps around the edge of the screen when active on iPhone, iPad, or CarPlay. On Mac, users can place Siri anywhere on their desktop to access it easily as they work. Users can type to Siri at any time on iPhone, iPad, and Mac, and can switch fluidly between text and voice as they use Siri to accelerate everyday tasks. With richer language-understanding capabilities, Siri can follow along when users stumble over their words and maintain context from one request to the next. In addition, with extensive product knowledge, Siri can now answer thousands of questions about the features and settings of Apple products. Users can learn everything from how to take a screen recording to how to easily share a Wi-Fi password."