Many people don't realize that the field of critical scholarship on Sanskrit literature is still relatively young, and therefore we make new discoveries all the time. In fact, some crucial new breakthroughs have been made in the last few years that change our understanding of the Yoga-sūtra significantly. In this new talk, I will summarize these findings and what they mean for all those who study and practice yoga thoughtfully. Specifically, we will address the influences on the Yoga-sūtra; the identities of Patañjali and 'Vyāsa'; the real meaning of Yoga-sūtra 1.2 and of the word 'anga'; and Vedāntic criticisms of AND commentaries on the Yoga-sūtra. Though it might sound academic, this talk is delivered in an accessible manner and I take care to point out why these issues matter.