In Re the Marriage of Harless

LeGRAND, Justice.

A dissolution decree entered on January 26, 1972, provided for payment of $100 a month for the support of Robin Christine Harless, daughter of the parties, until she should reach “the age of 21 years or otherwise attain her majority or terminate her formal education, whichever event is first to occur.”

At the time the decree was entered, the age of majority was 21 years. Thereafter the legislature amended § 599.1, The Code, to reduce the age of majority, first to 19 years (Chapter 1027, § 49, Acts of the 64th G.A., 1972, Regular Session) and thereafter to 18 years, where it…