Save files apparently still work?

I just got a friend who told me she used a save file 2 days ago to hack legacy and get all characters p3... and apparently it worked. She just copied and pasted the save file and she has legacy! How is that possible? I thought save files were patched? O_O

how do you get save edits to work stil?

Well I use windows 7 and it worked on windows 10 too like 3 days ago, I edited save editor a little bit and it works ))