Hello Brett! The team is currently in the process of rewriting the Angular compiler. I published an updated deep-dive article that explores the new compiler, called Ivy:
If you had fun with the “Deep, Deep, Deep” Dive into the Angular Compiler, just wait ‘till you get your hands on Ivy!blog.angularindepth.com
While the current Angular compiler is still relevant and will be the default for the upcoming Angular 8.0 release, I would suggest focusing on Ivy first, as this is the direction where Angular is headed.