Minecraft 1.20.3 Pre-Release 1

We're bringing you the first Pre-Release of 1.20.3 with updates to server resource pack handling and bug fixes!

Technical Changes

• The Data Pack version is now 26
• The Resource Pack version is now 22
• Changes to downloaded/world resource pack handling

World resource packs

Changes apply to world resource packs (resources.zip), Realms resource packs and resource packs controlled by dedicated servers.

UI

• Download screen has been replaced with a toast
• World resource pack application will start together with chunk loading

Local storage

Downloaded packs are now stored in downloads directory (with different file organization than old server-resource-packs)

• Files in this directory are no longer automatically cleaned (previously only up 10 packs were kept)
• Additionally, inside this directory there is also log file log.json that stores information about downloaded files for debug purposes

Server config

Downloaded packs now have unique id (GUID/UUID) that can be used to differentiate them

• This value for dedicated server pack can be configured with resource-pack-id option in server.properties
• If the value is missing, it will be generated based on URL
• If hash of a pack is not set, this pack will be redownloaded before every application
  • Previously, if hash was missing, latest downloaded version of pack was applied

Packets

Some additional options are added for 3rd-party servers software:

• Client can now accept multiple server resource packs
• New packet was added to un-apply server resource packs
• Resource packs are no longer cleaned when entering configuration phase

Data Pack Version 26

• Renamed minecraft:grass block and item to minecraft:short_grass

Resource Pack Version 22

• Renamed minecraft:grass block and item to minecraft:short_grass

Fixed bugs in 1.20.3 Pre-Release 1

• MC-142160 pausedTickDelta updated when the game is unpaused rather than paused
• MC-164316 Resource pack update by a hash doesn't work
• MC-251126 Server resource pack is not redownloaded when a hash mismatch is detected with the previously downloaded version
• MC-265927 Edit box length restrictions can result in unpaired surrogate characters
• MC-265929 Ctrl+Backspacing a word with non-BMP characters in an edit box deletes additional characters
• MC-266456 Breezes in minecarts or boats are passive
• MC-266468 Breeze cannot attack in deep water
• MC-266472 Charged creeper / wither armor is rendered incorrectly
• MC-266507 Number of block drops from TNT explosions is capped to 16
• MC-266563 End Crystals and TNT Minecarts that explode without a source entity deal no damage at all
• MC-266571 Breezes won't attack while under the effects of levitation status
• MC-266656 The interpolation of particle, entity and block entity transforms is disrupted when pausing the game in singleplayer
• MC-266723 Monsters Hunted advancement requires killing a Breeze even when they're disabled
• MC-266724 scoreboard players reset no longer works
• MC-266729 Unformatted objects in scoreboard error messages