If it were that easy, why don't you do it? Fuck me, I deal with stupid people at work and then I come home to shit like this.
The fact of the matter is, when things get changed from version to version, memory addresses have to be updated, code has to be updated to make it work and point to the right addresses, etc. Even small changes can break things in hacks.
Now remember the 1.3.5 update was huge and was nearly a complete rewrite of the internal code for the game, for whatever "omg huge secret" reason Relogic has planned for this dinosaur of a game that should have been discontinued a long time ago. Next to nothing is the same as it was internally. If you "cut and paste" the old hack code for this, absolutely nothing will happen at best. At worst, code might conflict and even cause bad things to happen.
This is quite frankly the single dumbest thing I have ever read on the internet, and I have been using it for 20 years.