Thursday snapshot! Apart from some bugfixes and some changes to fancy tags and commands, we're introducing "chat preview" as a way to cryptographically sign chat messages that have been dynamically styled by servers. And for this snapshot only, we've left in our testing option test-rainbow-chat in server.properties, which can be set to true together with the new previews-chat option for testing. If this is something that interests you, and especially if you run a server, we would love your feedback on it.

Enjoy!

Changes in 22w19a

Warden and Iron Golems now make sure to spawn above something solid

Technical Changes in 22w19a

Servers can now enable Chat Preview, which displays a server-controlled preview above the chat edit box
Changes to the locate and place commands
Point of Interest tags

Chat Preview

Servers can enable Chat Preview by setting previews-chat=true in server.properties
When enabled, a server-controlled preview appears above the chat edit box, showing how the message will look when sent
This can be used by servers to preview messages with styling applied, such as emojis or chat coloring
Chat Preview sends chat messages to the server as they are typed, even before they're sent
- The server then sends back the styled preview in real time
- This allows servers to apply dynamic message stylings while still allowing chat to be securely signed
A warning screen is shown on the client when joining a server with Chat Preview, and it can be globally disabled in Chat Settings
Dynamic chat styling can also be controlled by the server, although this is only signed when Chat Preview is enabled
- Clients can prefer to always show the original, signed message by enabling "Only Show Signed Chat" in Chat Settings

Commands

Added template sub-command to place-command
locate command moved to locate structure, locatebiome moved to locate biome
Added locate poi <type: point_of_interest_type>
Servers will now also send an additional icon and MOTD packet after a player has connected
- This allows servers with enable-status=false to set an icon and MOTD for players that successfully connect

Place template

The place-command can now also place templates at a given location. Syntax: place template <template> [pos] [rotation] [mirror] [integrity] [seed]

place template works like using the load button in the UI for a structure block

Parameters:

template: The namespaced id of a template ("structure block file") to load and place
rotation: The rotation to apply (if omitted, none is used)
mirror: The mirroring to apply (if omitted, none is used)
integrity: The structure integrity value between 0 and 1
seed: The seed to use for the randomized degradation when integrity is less than 1

Point of Interest types

Removed unemployed and nitwit point_of_interest_types
Added tag point_of_interest_type/acquirable_job_site for all job sites seeked by Villagers with none profession
Added tag point_of_interest_type/village for PoI that are part of Village
Added tag point_of_interest_type/bee_home for all PoI targeted by Bees

Fixed bugs in 22w19a

MC-197647 Players cannot jump off the edge of blocks when sneaking if they have a block above
MC-231600 Sculk sensor continuously receives vibrations when next to a powered big dripleaf
MC-249130 Tadpoles hatch inside of adjacent blocks, causing them to suffocate and die
MC-249161 Frogs frequently get stuck below lily pads
MC-249634 Warden's sniffing behavior continues after being distracted
MC-249664 Warden despawns when far away
MC-249801 Mineshafts can intersect ancient cities
MC-249888 Warden is not angered when hit by a blaze fireball
MC-249910 Warden "Nearby Closest" sound is unused
MC-249966 Warden can stop chasing a target it just roared at
MC-250172 Warden doesn't turn towards the direction it is firing the Sonic Boom attack
MC-250233 A warden summoned from a spawn egg suddenly losing its AI
MC-250255 Warden's Sonic Boom cannot hurt Ender Dragon, it only pushes it back
MC-250272 Warden spawns in blocks that have no collision
MC-250353 Warden cannot spawn on a single snow layer like other mobs
MC-250357 Sculk sensors and Wardens detect when a player holds up a shield
MC-250948 Warden's ranged attack is no longer affected by the game's difficulty
MC-250966 Dying to the warden's sonic boom doesn't count as the warden's kill
MC-251029 Warden froze and stopped being hostile towards the player
MC-251263 "Invalid signature for profile public key" when trying to open a singleplayer world
MC-251316 The game crashes when loading chunks that consist of jigsaw blocks
MC-251321 Warden can be pushed by explosions while emerging
MC-251350 /give @s goat_horn gives an unregistered goat horn
MC-251396 java.lang.IllegalArgumentException: Name and ID cannot both be blank
MC-251464 When passive mobs take damage from warden's sonic boom, they won't flee in panic

Minecraft Snapshot 22w19a