Java Edition 1.17 Pre-release 1

1.17 Pre-release 1 is the first pre-release for Java Edition 1.17, released on May 27, 2021, which re-added candles to survival mode, added new advancements, splashes, and fixed bugs.

Blocks

 * Candles
 * Readded candles to the creative inventory.
 * Candles can be crafted again.

Gameplay

 * Advancements
 * Added eleven new advancements:
 * Whatever Floats Your Goat!
 * Float in a boat with a goat.
 * Wax on
 * Apply wax to a copper block.
 * Wax off
 * Scrape wax off a copper block.
 * The Cutest Predator
 * Catch an axolotl in a bucket.
 * The Healing Power of Friendship!
 * Team up with an axolotl and win a fight.
 * Glow and Behold
 * Make a sign glow.
 * Light as a Rabbit
 * Walk on powder snow with leather boots.
 * Surge Protector!
 * Have lightning strike a lightning rod near a villager without setting the area on fire.
 * Is it a Bird?
 * Look at a parrot through a spyglass.
 * Is it a Balloon?
 * Look at a ghast through a spyglass.
 * Is it a Plane?
 * Look at a dragon through a spyglass.

General

 * Splashes
 * Added the following splash text:
 * " [this splash text has been delayed until part 2] "
 * "Contains simulated goats!"
 * "Home-made!"
 * "There's <<a cat on ,my keyboard!~" [sic]
 * "The cutest predator you'll ever meet!"
 * "Now you are thinking with pistons!"
 * "Get to the coppah!"
 * "Board game version also available!"
 * "Honey, I waxed the copper!"
 * "Plant-based light sources!"
 * "Made by "real" people!"

Blocks

 * Azalea and Flowering Azalea
 * Can now be placed on top of flower pots.


 * Candles
 * Candles now have a different texture when lit.


 * Signs
 * Glowing text on signs now has an outer glow, making text in dark colors more visible in the dark.

General

 * Credits
 * Updated the credits.
 * Now it scroll faster when holding the space bar.


 * Splashes
 * Removed "Woo /v/!"

Experimental
Changes have been made to the official Caves & Cliffs world generation preview datapack, which gives early access to the world generation coming in Java Edition 1.18.

Video
Video made by slicedlime: