Something i don't get : does this mean the flutter team will have to redevelop all the gui features and new components of every single new version of cocoa touc

Something i don't get : does this mean the flutter team will have to redevelop all the gui features and new components of every single new version of cocoa touch, every year, within the timeframe of the beta and the actual release of the new sdk ? And do the same with android sdk ? Or, will you end up with old looking interfaces and wait anxiously for someone to update the gui component library ? Because except for creating its own ui paradigm, that will look different from both ios and android, i don't see another option.