https://wccftech.com/borderlands-3-hotfix-october-3-boss-nerfs/

Borderlands 3 has dropped a new update, which includes an array of tweaks and improvements. Most notably, some of the game’s most irritating bosses, including Gigamind, Katagawa Ball, and Billy the Anointed have been toned down. I can confirm all three of those bosses were pains in the ass (particularly the Katagawa Ball) so I’m glad to see them get theirs. Meanwhile, FL4K is getting a solid buff, while Moze is receiving a minor nerf. Check out the full patch notes, below.

These three boss fights had concerns with their health and shields that made their combat loops more difficult than we intended. Gigamind had a little too much health, so that was reduced slightly. Katagawa Ball will no longer regenerate its shields; we found that while players contended with the adds during the fight, it would unfairly regenerate its shield, negating the players’ progress. Finally, Billy had 25% of his health removed; we agree that this fight often dragged on needlessly. We will be monitoring each of these bosses and may make further adjustments in the future.