In Re the Marriage of Wilson

HARRIS, Justice.

Because the law favors permanency for its decrees, support orders have long been considered final concerning the rights and obligations of parties to domestic litigation under the existing circumstances. Thus parties have long been compelled to seek modification of support orders by claiming a substantial change of circumstances. ' In re Marriage of Vetternack, 334 N.W.2d 761, 762 (Iowa 1983). The principle is codified in

Iowa Code section 598.21(8) (1995). After sorting through the conflicting societal interests, the legislature enacted Iowa Code section 598.21(9). Under this…