Changelog

Eroded Fossil, Pillager Skeleton Head, Pillager skeleton Body are some regular Blocks that you can find in the Following biomes: taiga, birch forest, dark forest, badlands, eroded_badlands, wooded badlands, desert, soul valleys.
The Broken Skeleton block is a Block similar to the Broken Skeleton, but will never revive into a Skeleton. You can find it in the same biomes as the other skeleton blocks.
The Guardian Fossil is a skeleton version of the Guardian, findable on the floor of lukewarm oceans.

If local difficulty is greater than 3.5, a Skeleton spawning has a random chance of spawning a bonus group of other skeletons.
This group, called a squad contains: 2 additional Skeletons, 1 Knight skeleton, 2 Haunter skeleton, 6 Minions.
In HARD mode, the number of entities increase to 4, 2, 2, 10.

The Necromancer spawns in the weeping Willow tree.
In Raids, the Minions follow more the Necromancer
In Raids, the Necromancer can place more graves and summon more Minions at once.
The Bogged can now become broken.
Advancement: Grave Looter, given when the player loots a chest contained in a lost grave.
Advancement: Traitor, given when the player hurts a friendly skeleton.
Advancement: Death is the End, given when the player places a Grave in the End.
Creative mode: the broken skeleton now has its own spawn egg. It will spawn a broken form of a skeleton, chosen randomly.
Creative mode: a specific Creative Mode Tab for Bones Update has been Added.
Some parameters are now configurable into the config file bonesupdate-commo.toml.

The Knight skeleton's DASH attack is lowered from 16HP (8 Hearts) to 14 HP (7 Hearts).
The Reaper now gives effect WITHER when it hurts someone.
Enchantment: Leader cost changed: min cost 15, anvil cost 4
Enchantment: Subaltern cost changed: min cost 25, anvil cost 10
Enchantment: Serenity cost changed: min cost 19, anvil cost 6

Bones Update