1. Mind-reading: Yes
Darth Vader was also able to use the Force to perceive thoughts:
VADER: Give yourself to the Dark Side. It is the only way you can save your friends. Yes, your thoughts betray you. Your feelings for them are strong. Especially for... sister. So, you have a twin sister. Your feelings have now betrayed her, too. Obi-Wan was wise to hide her from me. Now his failure is complete. If you will not turn to the Dark Side... then perhaps she will...
Darth Vader was able to read Luke's thoughts. Kylo Ren seemed, to me anyway, to have even greater skill at mind reading.
2. Freezing blaster fire midair: No
As far as halting a blaster bolt in midair, I don't believe we've ever seen that before. We've seen plenty of Force users exercise Force telekinesis on various objects but never before on blaster fire.
Because he is extremely skilled in Force telekinesis, Kylo Ren is able to freeze not just objects but even blaster bolts in midair.
This is reinforced in The Force Awakens Visual Dictionary page on Kylo Ren:
Specifically the part where it says:
His reflexes and telekinetic defenses are immense - he is able to stop an incoming blaster bolt in midair and hold it in place for several seconds before releasing it.