Java Edition 1.17 Pre-release 1

1.17 Pre-release 1 (known as 1.17-pre1 in the launcher) 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
 * Re-added candles to the creative inventory.
 * Candles can be crafted again.


 * Potted Azalea and Potted Flowering Azalea
 * Obtained by planting Azalea Bush or Flowering Azalea Bush into a pot.

Command format

 * Starts a recording for 10 seconds capturing metrics such as tick durations, used heap sizes and other more detailed stats.
 * Executing again before the 10-second limit ends the recording early.
 * Executing again before the 10-second limit ends the recording early.

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 an ender dragon through a spyglass.
 * Adds new advancement triggers.
 * Triggered when player starts riding a vehicle or entity starts riding vehicle currently ridden by player.
 * Triggers for any player on the server when lightning finishes (i.e. entity disappears).
 * Triggered for every tick of using items (like crossbows, spyglass, fishing rods, etc).
 * Triggers for any player on the server when lightning finishes (i.e. entity disappears).
 * Triggered for every tick of using items (like crossbows, spyglass, fishing rods, etc).
 * Triggered for every tick of using items (like crossbows, spyglass, fishing rods, etc).

General

 * Debug
 * Added shortcut to generate and persist performance metrics from in-game.
 * Pressing F3+L while in the game starts a recording for 10 seconds capturing metrics such as tick.
 * Pressing F3+L before the 10 second limit ends the recording early.
 * Also include reports for the integrated server on single-player worlds.


 * Predicate
 * Added  sub-predicate.


 * 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!"


 * Tags
 * Added  block tag.
 * Includes leaves, bedrock, spawner, chest, end portal frame.
 * Added  block tag.
 * Includes bedrock, water, lava, ice, packed ice, blue ice.

Blocks

 * 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.

Command format

 * Removes debug report command.
 * Replaced by F3+L and.
 * Replaced by F3+L and.

Gameplay

 * Advancements
 * Added  condition to   trigger.

General

 * Credits
 * Updated the credits.
 * Changed the format from to.
 * Now it scrolls faster when holding the space bar.


 * Predicate
 * Added,   and   properties to   predicate
 * Added  (entity currently viewed by player) condition to   sub-predicate.
 * Expanded  field on   predicate to.
 * Now accepts an array of item types.
 * Expanded  field on   predicate to.
 * Now accepts an array of block types.


 * Splashes
 * Removed "Woo, /v/!"


 * Tags
 * Added Flowering Azalea and Flowering Azalea Leaves to the  block tag.
 * Removed Flowering Azalea and Flowering Azalea Leaves from the  block tag.
 * This prevents Enderman from picking up these blocks.

Video
Video made by slicedlime: