Not asking for buffs.
I pretty much just play Sub-Zero and am always trying to find ways around his weaknesses. Hell, I used to play Unbreakable when he wasn't good with GM when he wasn't near Top tier. So I'm used to working around things.
He needs help though. The majority of the Sub community think just tiny little tweaks will help him be Mid Tier. He still loses most match ups.
Anyway, these are from the official Patch Notes:
Sub-Zero - Max base stat attributes changed to Health - 1150, Defense - 1450, Strength - 1600, Ability - 1650 (from Health - 1050, Defense - 1500, Strength - 1700, Ability - 1600
Strength may be a Damage Nerf so that is a considerable change. We need some one to test it out. Maybe the 1650 Ability from 1600 balances things out but Strength will affect his combo strings.