This is a spoiler alert
If you don't want to know what is in the new movie
Then stop here and wait till after you see Carrie
Here are some differences in the new movie I saw
Let me know if I missed any

1. No nudity
2. The use of cell phones and the internet
3. Carrie plays with her telekinesis at school
4. The boy who gets thrown from his bike puts his face up to the
car window and makes faces first.
5. Carrie breaks a window and a glass water cooler
6. Carrie shuts her mom up and lifts her up and puts her in the
closet with her telekinesis
7. Carrie arrives to the prom in a limo
8. Carrie spares the gym teacher
9. Carrie flys through the air
10. Carrie makes the road shatter toward the car of the bully
11. Carrie plays with the bully before exploding the car
12. The girl bully cuts the pig's throat
13 The boyfriend of the bully dies first after Carrie stops the car
14. Carrie burns in hell is painted over her tombstone