Added in this snapshot:
- New kelp textures
- Changed generation rules for kelp and seagrass

Phantoms / Elytra
- Phantoms now drop membrane when killed
- Membrane is now used to repair elytra
- Membrane can be crafted into a slow falling potion

Riptide
- Riptide no longer works with Loyalty or Channeling
- Riptide will launch you forwards instead of throwing the trident

Advancements
- Fishy Business - Catch a fish
- Tactical Fish - Catch a fish with a bucket
- A Throwaway Joke - Throw a trident at a mob
- Very Very Frightening - Strike a Villager with lightning