New Edition of Turabian
In 2018, the 9th Edition of the Turabian Style Manual was released. Here is an overview of updates in the new edition.
What is Turabian Style?
According to CMOS Shop Talk, Turabian is a "student version" of the The Chicago Manual of Style that covers the situations high school and college students are more likely to experience. For this reason, you may see that many online guides combine both of these styles.
Online Guides to Using Turabian Style
Turabian Online Quick Guide (University of Chicago Press)
Chicago/Turabian Documentation (University of Wisconsion-Madison)