Any of them. The most current is the 1952.
Section 301 of that law says Cruz is an automatic citizen at birth:
***(a)SEC. 301. (a) The following shall be nationals and citizens of the United States at birth:
(7) a person born outside the geographical limits of the United States and its outlying possessions of parents one of whom is an alien, and the other a citizen of the United States who,
prior to the birth of such person, was physically present in the United States or its outlying possessions for a period or periods totaling not less than ten years, at least five of which were after attaining the age of fourteen years: Provided^ That any periods of honorable service in the Armed Forces of the United States by such citizen parent may be included in computing the physical presence requirements of this paragraph.
***
This addresses ‘citizen’ without reference to ‘natural born’. The Constitution makes the same distinction in Articles I and II.