The LDS scriptures appear to be contradictory in answering this question. They state in dozens of places that God is the same yesterday, today, and forever (e. g., Mormon 9:9; D&C 20:12, 17; 2 Nephi 27:23; Alma 31:17; etc.), and that He does not change (e. g., Mormon 9:10, 19; Moroni 8:18; etc.).
And yet, the evidence presented in the scriptures suggests otherwise: that God has softened a great deal, and changed His mind about several key doctrines:
- For example, He apparently has lost His taste for blood over the centuries (see Exodus 32:27-28; Ezekiel 9; Ezekiel 26; Amos 9:1-10; etc. compared with Matt. 5:39, 44).
- He also seems to have really come to look upon women with more appreciation (1 Cor. 11:3, 9; 14:34; Numbers 5:30-31; 1 Timothy 2:11; compare to Luke 7; John 8; this article; contrast with complaints in this blog; note that women were not permitted to speak at general conference until 1988; etc.). Oh, but then really changed His mind about other things regarding women.
- No one can argue that He has significantly changed His mind about skin color and righteousness (compare these statements with this and this).
- He's become less direct in His communication (compare Moses 7:4 with "impressions come... I think...").