Dart story is a little different AFAIK. Flutter uses Dart. Flutter targets Android and IOS. IOS does not allow JIT. So they had to make AOT compilation (native

Dart story is a little different AFAIK. Flutter uses Dart. Flutter targets Android and IOS. IOS does not allow JIT. So they had to make AOT compilation (native) for Dart. Even before Dart 2.0 work started. In Android, first they used JIT but switched to AOT there as well. JIT is used in Dart console applications (server). The biggest change with Dart 2.0 is that it uses a sound type system (strong mode).