Hello everyone.

I just bought a Dark Vengeance box set and the the store gave me an 8th edition rules update book with it.
The starter set had a 200 page mini rulebook with it that had a lot of great information in it.

Here is my question, can I still use the rule book that came with the starter set along with the 8th ed rule update? Or did everything
completely change? Im am mostly concerned with terrain rules.

Thanks in advance. Any helpful info welcome, as I am a new player.