Were AAs revamped?

[revloc02c]

In fact if you run this query it will show where there are disconnects in AA prereq progressions:

SELECT t1.skill_id, t1.name, t1.prereq_skill, t2.name FROM altadv_vars t1 LEFT JOIN altadv_vars t2 ON t1.prereq_skill = t2.skill_id ORDER BY t1.prereq_skill DESC;

Wherever there is a NULL on the right is a disconnect (except where the prereq_skill is zero or 4292967295 of course).