BuffMobs 3.0.0mc1.21.11 — Changelog

Hey everyone! Sorry for the delay on this release, Mojang made a lot of breaking changes between 1.21.10 and 1.21.11 that took a while to sort out. It's finally here though, and this version comes with a brand new feature I think you'll really enjoy. Details below. Don't worry, now that I've finally sorted out the mod's package structure, 3.0 will be coming to other versions too. Thanks for using the mod!

For bug reports and suggestions: GitHub Issues | Repository

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🆕 New Features

CombatDraft

Hostile and neutral mobs will now drink a regeneration potion when their health drops below a configurable threshold (default: 20% HP).

• Uses the vanilla drink animation and sound, identical to a player drinking a potion
• Living mobs receive Regeneration IV for 10 seconds by default
• Undead mobs receive Absorption + an instant heal instead, since Regeneration damages them
• Cooldown between uses and a max uses per life option (0 = unlimited)
• Supports whitelist and blacklist to control which mobs can use it
• Slime, Magma Cube and Ghast are permanently excluded

Ranged Mob Behavior — Kite Mode

Ranged mobs now have a second close-range behavior option alongside the existing melee switch.

• MELEE — ranged mobs equip a sword when the player gets close
• KITE — ranged mobs flee to maintain a safe shooting distance while still looking at the player
• RANDOM (default) — each mob individually picks MELEE or KITE on spawn, creating natural variety

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🔧 Improvements & Fixes

Attribute Scaling — All Layers Now Stack

Previously, Presets completely overrode Attributes and Dimension Scaling. Now all three layers always stack:

• Multipliers (HP, damage, speed, attack speed): attributes × dimension × preset × day
• Flat additions (armor, toughness): (attributes + dimension + preset) × day

Status Effects

• Speed effect was present in the config but was never actually applied to mobs — fixed
• Absorption added as a new configurable effect option
• Regeneration is now correctly skipped for undead mobs across all code paths

Mob Initialization

Buffs were silently failing on freshly spawned mobs because they were being applied before the mob's attributes were fully registered. Fixed by deferring the buff to the next tick after the mob joins the world.

Ranged Mob Return to Ranged Mode

Mobs in melee mode were not reliably switching back to ranged when the player moved away. Fixed by resetting the mob's target and navigation on exit, adding a 2.5 block hysteresis margin, and increasing the mode switch cooldown to 3 seconds.

Build Version

The version string is now auto-generated as {mod_version}mc{minecraft_version} (e.g. 3.0.0mc1.21.11), applied to both the JAR filename and the version shown in-game.

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⚙️ New Config Options

Section	New options
effects	speedAmplifier, absorptionAmplifier
rangedMeleeSwitching	behaviorMode (MELEE / KITE / RANDOM)
combatDraft	enabled, healthThreshold, regenAmplifier, regenDuration, cooldownTicks, maxUses, useWhitelist, whitelist, blacklist