Minecraft 1.21.0.20

A new major version Minecraft Beta and Preview 1.21.0.20 has been released. The first full beta of the next major update, which means - the developers are close to release! Hardcore mode, Ominous Events, various changes and bug fixes have appeared. More details below and on the developers' website.

Hardcore Mode

The toggle for this feature can be found and enabled in the 'create new world' screen in the latest Preview
Added the Hardcore mode in-game HUD UI
The gameplay for this feature is still in development, so expect a few issues while it's in Preview
Hardcore mode worlds can be uploaded to Realms
Out of game menu screens currently do not display when a Hardcore mode world is loaded on a Realm

Experimental

Added
- Ominous Trials
- Ominous Bottle
- Ominous Trial Key
- Ominous Trial Spawner
- Ominous Vault
- Ominous Events
- Trial Omen
- Wind Charged effect
- Weaving effect
- Oozing effect
- Infested effect
Breeze
- No longer Long Jumps into lava
- Properly deflects most projectiles
- Plays all of its sounds properly, even when off-screen
Trial Chambers now generate slightly more rarely and a bit more spaced out from each other
Trial Chambers
- Activates only if it is in the line of sight of a player
- Ominous Trial Spawners in the same room are more likely to spawn the same selection of projectiles
- Becoming Ominous will despawn any existing mobs it spawned and reset its challenge
- Trial Spawner in Ominous state spawns mobs with equipment they can wear
  - That equipment will have Armor Trims from the Trial Chambers
Heavy Core
- Can be waterlogged
- Doesn't pop as an item when Lava or Water flows across it
- Can now be pushed and pulled by Pistons without breaking
- Now has a map color of METAL
- Now has pickaxe as its preferred tool, and its destroy times have been adjusted
Added unique sounds for Cobwebs
Wind Charges no longer collide with nor destroy End Crystals
Wind Charges also no longer collide with other Wind Charges

Experimental in Minecraft 1.21

Ominous Trials

A new Ominous Event that can be accessed by exploring a Trial Chamber with Bad Omen
This event will have players facing more powerful Trial Spawners, if they dare!
Please note: There are some changes that are already in the Java Edition Snapshot that haven’t made it here, but we are working on more tweaks that will be included in the upcoming Previews.

Ominous Bottle

An item which can be consumed by players to receive the Bad Omen effect for 1 hour and 40 minutes
- Comes in 5 variations, one for each Bad Omen level
- The bottle breaks when consumed
- Can be stacked to 64
Can be found uncommonly in any Vaults that are unlocked with Trial Keys, and is dropped by Raid Captains when defeated outside a Raid

Ominous Trial Key

A new variant of the Trial Key which can only be obtained by defeating an Ominous Trial Spawner
They can be used to unlock Ominous Vaults

Item: Ominous Trial Key

Ominous Trial Spawner

A more powerful active phase of the Trial Spawner with unique challenges and rewards
- Provides a more challenging experience that players can opt into for better rewards
If a Trial Spawner detects a player that has the Trial Omen effect, the spawner will become Ominous if:
- It is not in cooldown
- It is in cooldown but was not Ominous during its last activation
  - Making it Ominous this way will bypass the cooldown
While active, it will:
- Glow blue instead of orange
- Emit soul flames instead of normal flames
- More commonly spawn mobs with equipment if they can wear it
- The equipment these mobs wear have Armor Trims applied from the Trial Chambers
- Periodically spawn potions and projectiles on top of unsuspecting players and mobs
Becoming Ominous will despawn any existing mobs it spawned and reset its challenge
- It will stay Ominous until it has been defeated and its cooldown has finished
When defeated, it will eject a different set of loot than normal Trial Spawners

Ominous Vault

A variant of Vaults that have a different texture and emit soul flames instead of normal flames
These can be found throughout the Trial Chambers in harder to find places and require an Ominous Trial Key to unlock
- These Vaults hold a more valuable set of rewards than the standard Vaults unlocked by Trial Keys
Known Issue: Vaults in Trial Chambers may generate without loot and cannot be opened by Trial Key

Ominous Events

Bad Omen has been expanded to give access to an optional experience in Trial Chambers
These optional experiences accessed through Bad Omen are now known as Ominous Events
- They are more challenging than usual, and are designed to shake up the experience in unique ways
- Illager Raids are an example of an existing Ominous Event
Bad Omen is getting some changes with this redesign:
- It has a new, shadowy icon and a sound for being applied to the player
- It is no longer given to players that defeat a Raid Captain outside a Raid
  - Instead, players can gain access to Bad Omen by consuming a new Ominous Bottle

Trial Omen

A variant that Bad Omen can transform into
This occurs when the player is within detection range of a Trial Spawner that is not Ominous
The transformed Trial Omen has a duration of 15 minutes multiplied by the previous Bad Omen level
Players that have Trial Omen are surrounded by ominous particles

Mob Effects

The following effects have been added:

Wind Charged
- Affected entities will emit a wind burst upon death
- Brewed with an Awkward Potion and a Breeze Rod
Weaving
- Affected entities will spread Cobweb blocks upon death
- Non-player entities with this effect can walk through Cobweb at normal speeds
- Brewed with an Awkward Potion and a Cobweb block
Oozing
- Affected entities will spawn two Slimes upon death
- Brewed with an Awkward Potion and a Slime Block
Infested
- Affected entities have a 5% chance to spawn 1-2 Silverfish when hurt
- Brewed with an Awkward Potion and a Stone block
These effects can be encountered while taking on an Ominous Trial Spawner
Spawners in an area will select a unique effect for the duration of their challenge, and drop them as lingering potions onto mobs and players nearby
Some mobs are immune to these effects
- Slimes are immune to Oozing
- Silverfish are immune to Infested
Known issue: The duration of these mob effects is different to Java Edition and will be fixed soon

Wind Charged, Weaving, Oozing and Infested effects

Changes

New profile view
- You can view your friends' achievements
- Now you can view subscribers
- Now you can view statistics including:
  - Blocks broken
  - Distance traveled
  - Time played
  - Mobs defeated
- Comparing stats with friends
Player can now stand on Boats that float on water
Added a new game rule to control decay of drops from TNT explosions, named "tntExplosiondropDecay"
The "tallgrass" block is now split into unique instances "short_grass" and "fern"
"Draw" and "Release" tooltips now appear for Crossbows
Export World or Export as Template if clear player data is set it will be applied in a copy and then exported (Preview Only)
"Read Book" tooltip now appears when it's possible to read a Book from a Lectern even when you are not holding an item
"Place" tooltip now appears for doors
The Realms Stories New Post screen now enumerates its active buttons with text-to-speech on (Preview Only)
Updated the 'Are you sure you want to opt out?' Realms Stories modal to ensure players know they can opt in later (Preview Only)

Changes in Minecraft 1.21

Fixes

Fixed issue where pressing Enter on a keyboard, keypad or controller (menu button) does not send message in the Chat screen
Fixed various keys not being bindable when using external keyboards on mobile devices
Cauldrons filled with potions now keep the color of the potion when pushed by a Piston
Containers being cloned over no longer keep their container screens open and cause crashes
All blocks now drop items by default when exploded with TNT
The Game Tip for sneaking now resolves itself properly when the player sneaks
Fixed an issue that could cause the loading screen to get stuck for some time at 41%
Support prevention of app/flow restart when dark mode toggled on or off on across Android devices
Fixed a bug where GUI scale was not modifiable after changing between handheld and docked mode on Switch consoles
Added missing indentation to list items in some modals, which should make those lists easier to read.
On touch devices, when moving items between different slots, the icon no longer appears as duplicated between the moving item and the destination slot
On touch devices, when moving enchanted items between different slots, the moving icon is now rendered correctly
On touch devices, stack-splitting UI no longer appears for unstackable items
On touch devices, items from Creative Inventory are now unselectable
On touch devices, it is now possible to swap two identical items
Removed faulty hotbar scale setting for Pocket UI
Fixed crashes that could occur when creating worlds on new Realms and backing out at the Online Safety dialog box
Fixed inconsistent displaying of unread badges for new posts in the Story Feed tab (Preview Only)
In Realms, blocks no longer reappear after breaking them in Creative Mode with Delayed Block Breaking toggle turned off
Naturally spawning mobs now spawn at the center of a Block
Fixed an issue where the ‘Let It Go’ trophy did not unlock on PlayStation®4
When using an item on an entity, it is now necessary to release the use button before being able to use it again, which prevents players from inadvertently consuming items themselves when interacting with entities
Sprinting speed is no longer activated with a delay
Ensure the right controller gets assigned to player 1 when playing on Xbox