Another new but much more subtle example is found in 2018, also for the SU(2) gauge theory in 4D, with an odd number of chiral fermions in the representation 4 or the isospin 3/2 of SU(2). This is known as the new SU(2) anomaly. The new SU(2) anomaly has an important application to rule out the existence of any global anomaly for the SO(10) grand unified theory. This new anomaly is a mixed gauge-gravitational anomaly and a nonperturbative global anomaly.