actually the changes since version 3.x are mindblowing. if you had least picked 28 to 29 i don't know.. but theres a million lines of code change between 3 and

actually the changes since version 3.x are mindblowing. if you had least picked 28 to 29 i don't know.. but theres a million lines of code change between 3 and 29. the js engine is like 50x faster, theres hundreds of new things supported, etc.