In the New Testament the importance of dreams did go away. The reference in Acts is from Joel 2:38 “And afterward, I will pour out my Spirit on all people. Your sons and daughters will prophesy, your old men will dream dreams, your young men will see visions.”
The reference in Jude is a warning not to trust in dreams: Jude 8: In the very same way, on the strength of their dreams these ungodly people pollute their own bodies, reject authority and heap abuse on celestial beings.
The importance of visions continues through the New testament.
Trances are mentioned three times, all in Acts.