He that is without sin among you, let him first cast a stone at her.
John 8:3-11, "8:3, "And the scribes and Pharisees brought to Him a woman caught in adultery. And having set her in the midst,"8:4, "they said to Him, “Teacher, this woman was caught in the act of adultery."8:5, "“And in the Torah Mosheh commanded us that such should be stoned. What then do You say?”"8:6, "And this they said, trying Him, so that they might accuse Him. But יהושע, bending down, wrote on the ground with the finger, as though He did not hear."8:7, "But as they kept on questioning Him, He straightened up and said to them, “He who is without sin among you, let him be the first to throw a stone at her.”"8:8, "And bending down again, He wrote on the ground."8:9, "And when they heard it, being reproved by their conscience, went out one by one, beginning from the older ones until the last. And יהושע was left alone, and the woman standing in the middle."8:10, "And יהושע, straightening up and seeing no one but the woman, said to her, “Woman, where are those accusers of yours? Did no one condemn you?”"8:11, "And she said, “No one, Master.” And יהושע said to her, “Neither do I condemn you. Go and sin no more.”
Leviticus 20:10-11, ‘And a man who commits adultery with the wife of another man, who commits adultery with the wife of his neighbor: the adulterer and the adulteress shall certainly be put to death.”
Where was the man that was committing adultery with this woman? The scribes and Pharisees did not include him but only the woman. The Law says “the adulterer and the adulteress shall certainly be put to death.” One can not commit adultery alone, it takes a man and a woman. Therefore without bringing the man also a legal case could not even be started. The accusers themselves were guilty because they were trying to enforce half of a Law, making themselves unreliable witnesses. So no Yahshua/Jesus did not change the Law at any time, the Law was not being followed by the scribes and Pharisees.