Do I need to learn WebKit?

Question

Qt

Now I'm reading the book "Qt 5.3. Professional C++ Programming", I've reached chapter 46 of WevbKit.
As far as I understand, at the moment Qt has abandoned this module in favor of QtWebEngine .
1. Do I need to learn WebKit?
2. Where can I read about QtWebEngine in Russian? =(

Answer 1

Teach, it won’t get worse - even if they don’t return, you can read migration guides if necessary.

Answer 2

Нужно ли - ответ вероятно известен только вам...

Answer 3

Ок. Еще один момент. Как насчет Qt Script?
Модуль Qt Script объявлен устаревшим и пользовател...
В книге по нему целый раздел (хоть и мелкий).