- Added Dungeons Content's Corrupted CauIdron, Ancient Guardian, Redstone GoIem, Redstone Monstrosity, Mushroom Monstrosity, Obsidian Monstrosity, Redstone Pigman Monstrosity, Tempest GoIem and Arch-Illager
- Added Sky Lands' Sky Pharaoh
- Added Useless Reptile's Lightning Chaser
- Added Knighy's Mystical Creatures' Super Spook and Pritour
- Added The Orcs! Orc Boss
- Removed Alex's Caves' Tremorzilla and Tremorsaurus' boss bars to discourage the player from confronting them head-on
- Fixed Neat and Mine and Slash's health bar HUDs being obstructed when a boss bar is active
- Added TofuCraftReload's Tofu Gandlem
- Added YUNG's Better Desert Temples' Pharaoh
- Added Pigzilla's Pigzilla
- Added THE UNDEAD REVAMPED's Clogger, Royal, Heavy and Pregnant
- Added Wizard Tower's Wizard
- Added Illage and Portage's Spiritcaller, Freakager (& Ragno) and Magispeller
- Added CrimsonSteve's More Mobs' Cyborg Vindicator and Reanimated Temple
- From the Shadows Reborn's Nehemoth's boss bar now disappears when Nehemoth turns into stone
- Added a new command (/mbbbforceshowbossbars) that allows players to toggle boss bars that exist through this mod by demand
- Added Alex's Caves' Tremorsaurus
- Added BossCraft Respawn's Fire Lord, Rogue Master, Spider Queen, Pharaoh, Grim Reaper and Megablock
- Added BossCraft Respawn: Overlord's King Scorpion, Ice Devil and Overlord
- Added The John Mod Reborn's Mega John
- Added Mutant Wolf's Mutant Wolf
- Added Vanilla Expanded - Orcz's Big Orc Boss
- Revoked support for The Masquerade's Masquerader due to the original mod author's plans to incorporate its very own boss bar into the mod (oopsie!)
- Added The Masquerade's Masquerader
- Added Lands of lcaria's Captain Revenant and Arachne
- Added Under the Moon's Wendigo