I’m starting to go through tutorials on lwjgl at this link: https://www.youtube.com/watch?v=cQAYMkzy9rQ
I noticed that the tutorials use the following import
import static org.lwjgl.opengl.GL11.*;
I believe this means that it uses GL 1.1, which is not the newest version of GL. What are the negatives of using this version instead using the newest? If I wanted to write my own game with lwjgl in the future, would I import the newest version of openGL? And, should I even be following this tutorial if it uses an old version of GL?
No, it does not matter but newer versions are able to use newer features. You can read the wiki of OpenGL to see what new is added.
Wiki