Men must have a cancellation of their sealings before they can be married in the temple to a woman again. I’m not sure when the policy changed, but it has been within the last 25 years or so. And no, I don’t know the reason for the change. I always assumed that if couples were divorced on earth, how could they stay married in heaven? It didn’t make any sense to me. And again, I leave it up to a loving Heavenly Father.
Thanks, I am trying to learn & it gets confusing at times.
That change may have been made for cases of divorce, but not for cases where the wife has died. Men can still be sealed to multiple women, but no longer to multiple living women. A couple of years back, one of the Apostles was sealed to a second wife almost exactly one year after his first wife died -- you can be quite sure the sealing to the first wife wasn't cancelled. Women can only be sealed to one man, period.
Polygamy in the afterlife is alive and well in LDS theology. Doesn't bother me, but it seems to reliably make the militant anti-Mormon crowd apoplectic. If only for that reason, I'd really hate to see it done away with :-)