YouTube is rolling out significant visual updates to its app, including Reddit-style comment threading and custom like animations. These new features aim to enhance user interaction and engagement across its platforms.

• The new comment threading system allows for up to three levels of replies before additional responses are "flattened."
• The updates were confirmed in a YouTube Creator Insider video and are expanding to Android and iOS devices.
• Custom like animations will change dynamically based on content, like a musical note for music videos or a bouncing basketball for sports clips.