“不可避免的争议”用英语怎么翻译？

There still exist some controversies over a few changes of this phenomenon.

The dispute over the lastest changes with regard to this phenomenon remains.
The latest changes about this phenomenon are still open for debate.
The latest changes about this phenomenon remain disputable.
There are still controversies surrounding the last changes of this phenomenon.

Now some of this phenomenon, there are still some controversial changes。