It may sound silly but I have doubts because I do not know if I have to use version 1.00 or 1.38 (current)

you'll probably find an answer if you join our discord. there is a channel dedicated to console only strats where you can ask your question and are more likely to get an answer. as for our leaderboard rules, you're free to use any patch you want

It's actually possible to play on patch1.27 on ps4 without jailbreaking