How does the Evolve Bouncer grow with my baby (newborn, infant, toddler modes)?

The Evolve Bouncer grows with your baby from newborn (5.5 lbs/2.5 kgs) with the newborn insert (insert usable up to 12 lbs/5.4 kgs), to infant mode (up to 20 lbs/9.1 kgs) or when baby can sit upright, and toddler mode (up to 29 lbs/13.2 kgs) as a toddler chair.