Bedrock Edition 1.4.0

1.3 is an upcoming update to Bedrock Edition set to be released in Q2 2018. It will add the experimental Plutonium Mode.

Additions

 * Plutonium mode

These features are included in previous versions under "Experimental Features"
 * Added drowned mobs
 * New swimming animation
 * Trident and new enchantments
 * Channeling
 * Loyalty
 * Riptide
 * Impaling
 * Stripped wood
 * Slabs and stairs for prismarine, prismarine bricks, and dark prismarine

Changes
These features are included in previous versions under "Experimental Features"
 * Items now float in water