Product redesign is a major design overhaul that involves UI/UX changes to revamp a product's interface and functionality, often incorporating user experience data in mind. A successful product redesign launch requires effective planning, including performing user testing with a soft launch, informing users about the upcoming changes at the right time, making the transition seamless, preparing a change management plan, and creating a frictionless onboarding flow. Key aspects of a successful product redesign onboarding include conveying guiding principles for the redesign, creating product walkthroughs for the new interface, and adding contextual tooltips to showcase value. Examples from Degreed, Mixpanel, and Airbnb demonstrate how these strategies can be implemented effectively.