Maybe reverting those patches broke something? I can't compare to 16.11 build but all i can say is that connecting to wifi (at least for me) takes significantly longer on your latest CM10 build than on the latest CM9 build. Especially after (hot?) reboot this is striking.
No, that's not true either. If there's some wifi issues, they've been present all along. There's been nothing merged after 16.11. that would affect our wifi and no other differences that would explain it. I had several patches for wifi tethering included already before 16.11. build and I had all of them reverted in 24.11. build.
Beside the wifi topic: Does voice search (not the google now version) work for anyone?