Rick, via the Internet, writes:
You mentioned that there are two sets of the Ten Commandments, and that one of them includes the injunction against boiling a kid in its mother's milk. I believe you said this version was in Deuteronomy. But I looked up the Deuteronomy version, chapter 5, verses 6-21, and I find no reference to boiling. In fact this recitation of the Ten Commandments appears to be in complete agreement with the recitation in Exodus, chapter 20, verses 3-17. Would you please explain where I would find the Ten Commandments recitation that includes the boiling the kid reference you described? Thanks.
Dear Rick,
You must have misheard. I said there are three versions of the Ten Commandments. The oldest one is Exodus 34, the second is Exodus 20 and the last is Deuteronomy 5. It is in Exodus 34 that you will find the injunction about "boiling a kid in its mother's milk." This version is almost totally cultic.

That creation story did not exist when Deuteronomy was written. So the versions of the Ten Commandments are really four: the primitive Exodus 34 version from the "J" writer in the 10th century BCE; the familiar one from Exodus 20, which is originally from the "E" writer in the 9th century BCE but was substantially edited by the "P" writer in the 6th century BCE; and the Deuteronomy 5 version, which is from the 7th century BCE and from the hand of the Deuteronomic writer. The biblical writers accounted for these several versions by suggesting that because Moses broke the tablets, God had to redo them and God did not redo them in the same way.
The fact is that these rules, like all covenant rules, emerged through the life of the nation of Israel and probably always had several versions. That is not a problem unless you are a fundamentalist.
– John Shelby Spong