(a) Notwithstanding any provision of sections 17a-112, 17a-113, 17a-148, 45a-187, 45a-606, 45a-607, 45a-706 to 45a-708, inclusive, 45a-715 to 45a-718, inclusive, 45a-724, 45a-727, 45a-732 to 45a-734, inclusive, and 52-231a, to the contrary, any adoption completed after October 1, 1973, in which the application and agreement of adoption were received by the Court of Probate before October 1, 1973, shall be valid, provided the adoption would have been valid under the general statutes in effect on September 30, 1973.

(b) Applications for termination of parental rights, appointment of statutory parents or for adoptions or any actions taken in accordance with the applications which were received by the Court of Probate prior to May 10, 1974, shall be valid if they conform to the provisions of sections 17a-112, 17a-148, 45a-606, 45a-706 to 45a-708, inclusive, 45a-715 to 45a-718, inclusive, 45a-724, 45a-727, 45a-731 to 45a-734, inclusive, and 52-231a in effect on May 9, 1974.