Huh? Communist China was (and still is) aiming to have LESS children. Before 2015 they didn't allow more than 1 (one!) child per family. Currently they are allowing 2 (two) children which is below sustainability threshold of 2.4
Current news suggest that they are upping the threshold to 3 children trying to stimulate population growth due to needing to increase their available work force in the future.
These measures are not as extreme as the last time they stimulated their population growth, which lead to the one child policy. We'll see if they feel that this stimulation is enough or if they will try to increase the incentive even more if they don't feel as if it is enough.