Updating hardcore world
I have been sitting on 1.21.1 on my java hardcore world for the past few years, and I was wondering if anyone knew of any other illegal blocks and exploits that still work in later versions, but are unobtainable in the later versions (like my deactivated tripwire string farm and adding permanent potions to animals).
I want to get as many illegal blocks or farms as possible before I update so I can have both the novelty of illegal blocks, and any advantage I am not supposed to have