This component will control newer paparazzi-based hardware, so the name 'mikrokopter' would be a misnomer. rotorcraft-genom3 is just a rename of mikrokopter-genom3, so it is fully compatible.
The old project mikrokopter-genom3 has been closed and marked as read-only. The git repository is still accessible read-only, but it will receive no updates.
You are encouraged to switch your clones to the new remote using for instance:
git remote set-url origin ssh://firstname.lastname@example.org/robots/telekyb3/rotorcraft-genom3.git