I just finished the 156-315.80 CCSE R80 exam. It was NOT 100% updated for R80.40. Several R80.30 and lower questions and commands. I expected this to be the case and prepared. However, several questions about "multik" topics (not gonna spill which beans and violate NDA) were bad. Worse, some of them were COMPLETELY unanswerable! Bad answers, likely-best answer had typos. I wrote comments on the exam for those questions. I hope someone reads them and fixes them. This exam was just bad.... I had to rely on my own multi-decade product experience to answer some of them; anyone with less than 5-years under their belt is gonna struggle with this.
I can PM you with specifics if you want.