We're bringing you the first Pre-Release of 1.21 with leashable boats, portal-able Ender Pearls and bug fixes!

With this snapshot, we are temporarily removing the functionality of lighting blocks on fire using the Fire Aspect enchantment, as we want to refine it further. This functionality will be reintroduced in a later release.

Happy portaling! ;)

New Features

Ominous Trial Spawner

• Mobs removed by a Trial Spawner converting to Ominous state now drop any items they previously picked up from the ground

Changes

• Mace attack speed has been changed to 0.6
• Doors of different materials can now form a double door
• Ender Pearls that are thrown through portals can now teleport players to a different dimension than the one they are currently in
• It is now possible to ride entities such as Horses or Minecarts through portals
  • When riding entities through portals, the delay before teleporting is not applied

Technical Changes

• Data Pack version is now 46
• Removed the entitiesWithPassengersCanUsePortals gamerule that was introduced last snapshot. Entity with passengers being able to use portals is now the default behavior.
• Report data generator now includes information about network packets
• The game will now store reports from failed chunks' loads and saves in the debug directory

Server links

• There are some generic-use link names, like "Support" or "Website", without any special functionality

Data Pack Versions 42 through 46

• Added new configurable fields to jigsaw structures and single_pool_element types

Enchantments

Level-Based Values

lookup

A Level-Based Value type that maps a list of values to specific levels, and applies a fallback if the level is greater than the number of values supplied. Fields:

• values - A list of values indexed by level - 1 to apply, if present
• fallback - A fallback Level-Based Value to apply if the level is greater than the size of values

Effect Conditions

Unlike with loot tables, all effect conditions need to be inline objects and cannot be references.

Tags

Block Tags

• fire_aspect_lightable has been removed
  • With this snapshot, we are temporarily removing the functionality of lighting blocks on fire using the Fire Aspect enchantment, as we want to refine it further. This functionality will be reintroduced in a later release.

Loot tables

Conditions

random_chance_with_enchanted_bonus

• chance: field has been removed
• unenchanted_chance: new field for the chance for an unenchanted item
• enchanted_chance: new field for the chance for an enchanted item - a Level-Based Value

Structures

• Added liquid_settings field to structures of type minecraft:jigsaw. Possible values:
  • apply_waterlogging: If any waterloggable block overlaps with existing water, it will become waterlogged
  • ignore_waterlogging: Will not waterlog any waterloggable blocks that overlap existing water
  • Default value is apply_waterlogging
• Added optional field override_liquid_settings to single_pool_element element type
  • Same possible values as the liquid_settings in jigsaw structures
  • Overrides the inherited liquid settings from the parent jigsaw structure while generating this pool element

Fixed bugs in 1.21 Pre-Release 1

• MC-902 The end obsidian platform resets every time entities go through the end portal, which can cause blocks to be deleted
• MC-50612 Command blocks do not update when you place them near any source of power
• MC-97087 Attributes won't work in main hand if they were in offhand
• MC-114566 Can't teleport back to the central island with End Gateway Portal on outer End islands
• MC-148741 Selection boxes in some screens are misaligned in comparison with their text
• MC-160140 Shulker boxes on the obsidian platform are destroyed and do not drop when a player enters the End
• MC-169698 Blocks within igloo basements can generate waterlogged when generating in close proximity to water
• MC-170907 Network position deltas are processed relative to a wrong point
• MC-172031 Throwing an ender pearl into a Nether or End portal often has no effect
• MC-191591 Saddles lose their NBT data when equipped on horses, zombie horses, skeleton horses, mules or donkeys via right-clicking
• MC-265583 Incorrect pluralization for skin customization strings for pants
• MC-265818 The "gamerule.doVinesSpread.description" string consists of grammatically incorrect word usage
• MC-266140 The "Open link" button within the realms menu is improperly capitalized
• MC-266471 Trial chambers can intersect aquifers, causing some blocks inside the structure to be waterlogged
• MC-267050 Chat disabled strings are missing verbs
• MC-267071 The word "packs" within the "download.pack.failed" string is always pluralized
• MC-267474 Strings referencing the player's off hand are inconsistently spelled
• MC-267954 World upgrade and downgrade realms strings are improperly capitalized
• MC-268023 The "selectWorld.experimental.details.title" string displayed within the experimental features details menu is improperly capitalized
• MC-268185 Copper grates in trial chambers are waterlogged
• MC-269921 Wind charges can be thrown though corners
• MC-270181 Wind charges go through an entity if it is close to a player
• MC-270572 Programmer Art resource pack duplicates some GUI texture files
• MC-270649 The width of challenge advancements header is calculated in relation to the slash formatting of progress counter, causing overlap in some languages
• MC-270795 Mobs despawned by Ominous Trial Spawners can delete picked up items
• MC-270821 Regular Trial Spawners spawn the first mob with Ominous Trial equipment if they were last active as Ominous
• MC-270981 View Bobbing toggle is not available in Accessibility Settings
• MC-271870 random_chance_with_looting function base value is for enchantment level 1
• MC-271897 End Portal makes items disappear
• MC-271929 Applying multiple layers of "using_converts_to" will produce ghost items
• MC-271971 Wind Charges sometimes don't prevent fall damage
• MC-272014 Ender Dragon death animation is broken since 20w22a (and broken again in 20w45a)
• MC-272038 The error "Can't access registry ResourceKey[minecraft:root / minecraft:game_event]" is sometimes in the log file
• MC-272053 The "armor_effectiveness" effect does not work with projectiles or indirect damage
• MC-272073 Item displays with billboard and rotation values create major visual bug
• MC-272079 Medium/small Slimes and magma cube's attack reach is too short
• MC-272198 Shulkers' models sometimes appear offset upon end city generation
• MC-272253 The strength of the riptide enchantment is increased when holding tridents enchanted with riptide in both hands
• MC-272258 block.portal.travel sound now plays when teleporting to a different dimension using commands
• MC-272264 Narrator button in Accessibility Settings doesn't update upon pressing Ctrl+B
• MC-272267 "Changes the blurriness of menu background" lacks punctuation
• MC-272279 Resource packs containing TrueType fonts fail to load on x64 macOS systems
• MC-272308 Axolots can be attached to new leads when being already leashed
• MC-272311 The enchantment glint sometimes doesn't render in interfaces and first person
• MC-272313 The game crashes when attempting to open the realms menu
• MC-272315 Serial comma is missing from the entitiesWithPassengersCanUsePortals game rule description
• MC-272322 When you are riding an entity through portals, you and the entity may teleport to the wrong place
• MC-272328 entitiesWithPassengersCanUsePortals game rule description is missing the proper term capitalization
• MC-272329 Riding an entity into portals may cause the game to softlock
• MC-272333 The gamerule spawnRadius doesn't work anymore on respawn (always respawn at the same place)
• MC-272339 Holding crossbows in both hands stacks quick charge
• MC-272342 Typo in mining fatigue attribute ID 'minecraft:effect.minining_fatigue'
• MC-272343 Ender pearls don't work when riding an entity
• MC-272344 When teleported by an ender pearl, the "portal noise fades" sound is played
• MC-272347 Upgrading from before 24w21a doesn't update structures saved by structure blocks
• MC-272355 Ellipsis text is stringified within NBT text formatter list truncation
• MC-272361 Minecarts and Passengers offset from block when riding through portals
• MC-272364 Players spawn one block above the obsidian platform when entering an end portal
• MC-272365 Inventory Images of All Banners are Completely White
• MC-272369 Can respawn in a solid block with default spawnpoint
• MC-272374 24w21b will not upgrade attribute_modifiers from previous versions
• MC-272399 Primed TNT entities can't go through an End portal anymore
• MC-272400 Shield in Inventory with Banner Shows as White
• MC-272403 Portal linking chunk loading changes
• MC-272406 Crash when zombie tries to spawn second reinforcement
• MC-272408 set_attributes item modifier can add the same attribute modifier twice
• MC-272424 Chunks occasionally have large dark areas in the sky
• MC-272427 Flame, power, punch, and piercing enchantments no longer work on the last use of the item
• MC-272430 Breaking a Carrot/Warped Fungus on a Stick gives a damaged Fishing Rod
• MC-272438 End crystal entities can't go through an End portal anymore
• MC-272442 Comparator output of jukebox no longer persists on music disc finish
• MC-272445 Command blocks made from Ctrl + Pick Block do not activate on first try
• MC-272469 When the wind charge, fireball or shulker bullet is in the lava, it will continue to make a high-loudness noise
• MC-272490 @n can select dying entities, unlike @e
• MC-272515 Component-Modified Saddles get their components wiped when dispensed onto a horse, mule, or camel.