Part 4/v0.4 went out to BobbyBoy's tier 3 and tier 4 patrons Five days ago, it will be available to tier 2 patrons in Two days, tier 1 patrons in Nine days and shared with the public/non-patrons in Sixteen days.
So guaranteed it'll be available for us pirates by then - unless one of his lower tier Patrons leaks it sooner.
It might get leaked, it also might not on account of Bobbyboy's reputation. He's friendly, communicative, open to criticism and all around pretty chill.
Plus he's still pretty new to this so his Patrons (at least the ones at Tiers 3 & 4) clearly don't wanna screw him out of the potential revenue just yet.