The provisions of § 43-4-27 shall apply to wills of the kind mentioned of all decedents dying before or after July 1, 1968, and to all trust indentures of the kind mentioned, whether made before or after July 1, 1968, and to the distributions of assets under all such wills or trust indentures, made after July 1, 1968, but it shall not apply to any distributions made prior to July 1, 1968, and shall not impose any liability or obligation upon any fiduciary as a result of any distribution prior to July 1, 1968.
SDCL 43-4-28