Minecraft:Java Edition 1.13-pre3

1.13-pre3 is the third pre-release for Minecraft:Java Edition 1.13, released on June 21, 2018.<ref name=1.13-pre3>Template:Mcnet</ref>

Changes

Major memory usage optimizations.
The resource pack folder textures/blocks got renamed to textures/block.
The resource pack folder textures/items got renamed to textures/item.
Blockstate files.
- "normal" for blocks without block states changed to an empty string ("").
- Item frames now have "map=false" instead of "normal" and "map=true" instead of "map".
- Model references no longer start at the models/block/ folder, but instead at models/.
The minecraft:overworld Superflat preset has been changed.
(Undocumented) Bubble pop particle and sound effects have been removed.
It is now possible to assign models to the Minecraft:End portal and Minecraft:End gateway blocks, though these only change the particles used and will not cause that model's geometry to render.

An example of how dispensing bone meal will now generate sea grass.