very unstable behaviour in updated version 18, date picker, dropdown and modals

[qayyumgb]

I am realy wondering that what kind of updation is this?

every component is behaving worst than previous version 8.

datepicker adaptive position is not working, so how to adjust in screen. We need to add lot of custom code to fix this.

Modal animation is not good, dropdown is behaviour is still same.

Can any one ellaborate that what fixed and new feature in updated version 18 or 19 ?