Java Edition 18w11a

18w11a is the twenty-eighth snapshot released for Java Edition 1.13, which added drowned zombies and shipwrecks.

Blocks

 * Coral fans
 * Do not generate naturally yet.
 * Can be placed underwater on the side of blocks.

Items

 * Spawn eggs
 * Added a spawn egg for drowned.
 * Spawns the drowned mob.
 * Appear blue with olive spots.

Mobs

 * Drowned
 * Spawn in all oceans and rivers.
 * Zombies will morph into drowned after a while if they are in the water.
 * Drowned can spawn with tridents, allowing you to get them in survival.
 * Do not float, but can swim.
 * All drowned have a melee attack, and ones with tridents have a ranged attack
 * Like zombies, drowned will attack baby turtles and stomp on and destroy turtle eggs

World generation

 * Shipwrecks
 * Can be found in oceans and beaches.
 * Contain 1–3 loot chests containing different types of loot depending on the ship.
 * Can generate upright, sideways, or upside down.

General

 * + will now copy the player's current location to clipboard
 * + will now copy the player's current location to clipboard

Video
Video made by slicedlime:

Trivia

 * Unlike most of the first-of-the-week snapshots, this was released on a Tuesday instead of a Wednesday.
 * 18w11a was released exactly 5 years after the Redstone Update.