Ice:
Ice-Types gain boosted Defense in Hail
Ice now resists Water, Ground, Flying, Fairy and Grass

Bug:
No longer resisted by Fairy, Poison and Ghost

Rock:
Removes Stealth Rocks upon switch-in
Now resists Bug and Ice

Psychic:
Supereffective against and resists Fairy
Steel no longer resists Psychic
Confusion immunity

Steel:
Gains it's Dark resistance back, but no longer has Psychic-Type resistance

I've fixed the type chart