Apple released the first major update to macOS Catalina today. It is available in System Preferences, Software Update. New features include support for the AirPods Pro that go on sale tomorrow, updates to the Home app and Siri, and a host of bug fixes including several for the Photos app.
Also included are more than 70 new emoji characters, such as gender neutral characters, new skin tones for existing emoji and new animals, food and activities.
You can read about all of the bug fixes at https://support.apple.com/en-us/HT210642.