As someone else noted, it's complicated, but the nutshell, off-the-top-of-my-head-without-googling explanation is that the most recent edition's licensee, a company run by Matt McFarland and his wife, were humming along with a modest line of supplements for their own edition when some credible accusations were made against them (both sexual and financial). In the middle of the controversy, the McFarlands went scorched earth and decided to leave the gaming industry entirely (presumably in an attempt to firewall their day jobs). McFarland's company ceased publication of Chill 3rd Ed. and reverted rights back the owner, who has since licensed it to a publisher called Salt Circle Games. SCG seems pretty small (even by TRPG publishing standards) and have been pretty quiet, though they have at least one supplement up on DTRPG.
