Yes, IOC is 10. And that's not female athletes, it's male athletes competing in female categories. As far as I know, neither IOC nor IAAF have any testosterone limits for actual females.
The IOC, along with everyone else, realise that 10 is obviously too high, being within the normal male range, but meetings to discuss lowering it to 5 have been a bit deadlocked, apparently. I gather that there isn't consensus to lower to 5 as a large chunk of participants want to reverse the 2015 rule change and others want "inclusion, yay!". There's no support for the 5nmol/l "compromise". So the rules are stuck where they are.