Wednesday, October 4, 2023 at 12:48 PM

Minecraft Snapshot 23w40a

Table of Contents
Changes
Technical Changes
Data Pack Version 19
Fixed bugs in 23w40a

We are now releasing Snapshot 23w40a, the first snapshot for 1.20.3! This snapshot contains improvements for shields, changes to chat component serialization and bug fixes.

Changes

  • When a player is blocking with a shield, the arm with the shield now follows the direction the player is looking at, when viewed from third person perspective

Technical Changes

  • The Data Pack version is now 19
  • A few minor changes to chat component serialization

Chat components

Serialization

  • Plain-text chat components (text, no sibilings, no stylings) are now always serialized as string instead of {"text': "blah"}
  • Chat components now serialize to NBT when sent over network
  • Chat components now have an optional type value (allowed values: text, translatable, score, nbt, keybind) to speed up parsing and improve error checking
  • id field in show_entity hoverEvent style now also accepts UUID as an array of 4 ints
  • Numeric and boolean arguments for translate component are no longer converted to string
  • The following JSON component representations are no longer accepted:
    • null
    • []
  • Errors in following style fields are no longer silently ignored:
    • color
    • clickEvent
    • hoverEvent
    • hoverEvent[action=show_entity].contents.name
    • hoverEvent[action=show_item].contents.tag

Data Pack Version 19

Tags

  • Added can_breathe_under_water entity type tag which disables drowning
  • Added can_break_armor_stands damage type tag for damage types that can incrementally knock down armor stands

Fixed bugs in 23w40a

  • MC-47607 Barrier particles aren't shown if particles are set to minimal
  • MC-50647 Slime mob spawners spawn slimes only in slime chunks
  • MC-78314 (Marker) Armor stands create bubbles in water
  • MC-109101 Shields do not block damage while the player faces straight up
  • MC-114761 Area effect cloud applies effect to dying mob
  • MC-172398 Fire texture renders according to the player's rotation in the player inventory
  • MC-221558 Light particles aren't shown if particles are set to minimal
  • MC-227255 Beehives and bee nests do not rotate/mirror correctly in structure blocks
  • MC-236946 Shield attack vector is normalized incorrectly
  • MC-253819 Bells don't rotate correctly when loaded by structure/jigsaw blocks
  • MC-254850 An operator can kick a host of a LAN world
  • MC-255173 Nether portal teleportation is inaccurate at large coordinate values
  • MC-261303 Decorated pots have an unused "cracked" block state
  • MC-263123 Mending incorrectly calculates overflow after full repair
  • MC-264748 GLX._initGlfw Treats Pointer as a String
  • MC-265353 Clocks and Compasses in Item Display Entities don't show correct time/direction
  • MC-265462 Sending resource pack during play phase shows loading terrain screen for a long time
  • MC-265519 Game minimizes when certain areas of the screen are clicked on Mac in fullscreen mode