Board Thread:Naruto Discussions/@comment-26152226-20150331230030/@comment-4912646-20150401022926

The fourth databook still states Kakashi's chunin exam happened when he was 6. Seeing as the graduation dates were removed from said book, maybe we are now to believe they were all 6 at the time. Doesn't help Hayate and Anko though. All of the jonin knowing one another since childhood does feel really forced though, considering Kurenai needed to ask who Ibiki was back in Part 1.