Minecraft 1.20.3-pre3

27 Nov 2023

As 1.20.3 approaches, this pre-release fixes more bugs. See the changelog.

Copper Blocks

Copper doors now drop when mined on either side by a wooden pickaxe or above, fixing MC-266115.

Resource Packs

Realms resource packs now generate a unique ID for each minigame/server. Similar to dedicated servers, Realms generates a version 3 UUID, but based on the realm name and slot ID:

String str = "realms:" + realmName + ":" + realmSlotId;
return UUID.nameUUIDFromBytes(str.getBytes(StandardCharsets.UTF_8));

If the Realm is a minigame, then the minigame name is used instead:

String str = "minigame:" + minigameName;
return UUID.nameUUIDFromBytes(str.getBytes(StandardCharsets.UTF_8));