Apparently this was signed in June, but don't recall anyone talking about it.

Ackerman, you may finally get some forced austerity at D87.

Article:
Gov. Bruce Rauner signed legislation a week ago that lowers the threshold to 3 percent and makes school districts responsible for any increase in pension costs triggered by pay raises higher than that. The lower limit goes into effect for new teacher and administrator contracts.
They could decide to pay the penalty too....