Java Edition 18w10c

18w10c is the twenty-sixth snapshot released for 1.13.

Additions

 * General
 * New water physics
 * Water can be placed in the following blocks: stairs, slabs, fences, walls, iron bars, glass panes
 * More blocks may be able to contain water in the future
 * Water can flow out these blocks, but can not flow into them
 * When full of water, they will count as water blocks for all gameplay (such as swimming)
 * Water will flow out of all faces of the block
 * This will change in future snapshots
 * Removed the blocks  and
 * Removed the block tags  and
 * All of the blocks that water can be placed in now have a state
 * Blocks such as bubble column or kelp will always count as a water source

Changes

 * Mobs
 * Phantoms are now considered undead mobs
 * This means that they are harmed by Healing potions, healed by Harming potions, ignored by the Wither, and affected by Smite enchantment.