Additional changes to the Illinois Marriage and Dissolution of Marriage Act that will become effective on January 1, 2016 is that Illinois will now only recognize one ground for dissolution of marriage: irreconcilable differences. Illinois courts will no longer proceed under any of the other divorce grounds, such as mental cruelty or adultery. It is enough to show that irreconcilable differences caused the irretrievable breakdown of the marriage. Additionally, the six month, or if the parties did not agree the two year, separation period has also been eliminated.