despite anything, Ironfall Invasion (the game required for ironhax) has been pulled from eshop from all regions, the news came out 3 days ago
unless it returned, updating your system will be a waste.
I also want to note that, 9.3 and above apparently don't have a kernel exploit yet. so even with ironhax or anything (as of nowdays) CIAs/CFW/GW/etc.. will NOT work.
as of oothax, smea only talk about ironhax on twitter recently, I even heard that he'll not use OoT 3d to make further exploits (correct me if i'm wrong)