6 new arrows and bows craftable in the fletching table.

Adds the Big Beak (a large ride-able bird), and the Hungry Dripleaf (a carnivorous plant).

Transport villagers with llamas by giving them the lead.

Use the sniffer to locate biomes.

Use trial keys to lock chests, doors, etc.

Use a lightning rod to create a Copper Mace with a lightning attack.

Paint, brush your pets, remove moss, farm string, and more with brushes.

Adds a Nautilus mob that hides in suspicious gravel underwater.

Use ender chests with hoppers.

Fill copper grates with water to create pipes

Upgrades to make decorated pots more useful.

Adds an Echo Shard trim to armor via the Smithing Table.

Use an Echo Shard to upgrade a Goat Horn to perform sonic boom attacks

Use copper to create tools and armor that change stats as they oxidize.

Locate vibrations through walls with an Echo Shard Spyglass

Use the creaking heart with different blocks to change the biome.

Meerkats and oases in the desert.

Create Echo Shards by having an Allay holding an Amethyst Shard get hit by a Warden's sonic boom.