The exploiting community is currently in a state of transition. With and advanced anti-cheat , the era of "permanent" cracks is largely over. Most users find that the safest and most reliable way to use Delta is to go through the official key system provided by the developers or to support them directly for a legitimate lifetime key.
“Someone on Telegram claims to have a patched version of the patch – a pre-hooked kernel driver that intercepts the integrity check. But it costs 0.5 BTC and smells like a scam.” delta lifetimeldbk patched