There can be several steps of modification for a product. There can be different versions of an application in which the company incorporates new features with time. The product manager can make a product roadmap that shows how they have developed the product. In the given product roadmap example, the product manager has shown how it developed with time. They have marked phases like payment method update, Voice control support, Live-chat Chabot release, delivery tracking system, IOS app launch, Android app launch, and more.
