每周快照是Minecraft的测试机制，主要用于下一个正式版的特性预览。
然而，每周快照主要用于新特性展示，通常存在大量漏洞。因此对于普通玩家建议仅做测试尝鲜用。使用测试版打开存档前请务必备份。 适用于正式版的Mod不兼容快照，且大多数Mod都不对每周快照提供支持。
Minecraft 1.13 仍未发布，18w21a为其第38个预览版。
MINECRAFT SNAPSHOT 18W21A
A Minecraft Java Edition Snapshot
Java版1.13快照 18W21A
Wednesday snapshots are best snapshots!
周三的快照是最好的快照!
CHANGES IN 18W21A
18W21A中的修改
Dolphins no longer wear armor
海豚不能穿上盔甲了
Dolphins will now help you find treasures
海豚会指引你寻找宝藏
Lerp
线性插值
Fixed some bugs
修复了一些BUG
FIXED BUGS IN 18W21A
18W21A中修复的BUG
MC-52974- Host's skin not visible to other players when in LAN
局域网主机的皮肤无法被局域网中其他的玩家看见
MC-72866- Item shading inside item frames does not account
物品框中旋转过的物品阴影方向错误
MC-97196- /spreadplayers shows wrong error message / large number in error message when no entities were spread
/spreadplayers指令在没有实体被随机扩散时会显示大量错误信息
MC-105139- Entity head rotation not interpolating on Yaw axis
实体头部的Y方向旋转没有插值
MC-123199- Lighting renders incorrectly on item frames oriented vertically
垂直方向上物品展示框照明不正确
MC-123454- Dispenser using spawn egg spawns mob too high
发射器使用刷怪蛋时生成过高
MC-123455- Using spawn egg spawns mob too high on the water and lava
刷怪蛋在水上或熔岩上使用时生成过高
MC-123598- Fence top missing texture when below fence gate
栅栏门下方的栅栏顶部没有材质
MC-123769- Some item names that previously had colors doesn't have colors anymore
一些物品的物品名称没有标注颜色
MC-124954- Jungle temple redstone wire is not connected
丛林神殿的红石没有连接
MC-125377- Structures from old worlds don't regenerate if opened with 1.13 standalone client/server
旧版本世界的结构如果用1.13的客户端/服务器打开不会生成
MC-126086- Salmon and tropical fish hitbox on land is wrongly positioned
陆地上的鲑鱼和热带鱼的碰撞箱错位
MC-126863- Sounds made with water in spectator mode
观察者模式会在水下发出声音
MC-127116- When placing a wall using /setblock without specifying a block state, it is invisible; default state has up=false
默认方块状态中up=false
MC-127333- Carpet and panes don't show the right colors on maps
地毯和玻璃板在地图上没有显示正确的颜色
MC-127586- Mobs do not suffocate in double slabs
实体不会在双台阶中窒息
MC-127996- Bone meal can be put on floating water
骨粉可以对流水施用(且其产生的海草会替换流水为水源)
MC-128139- Sea grass generates water source when placed on flowing water
在流水中放置海草将会产生水源
MC-128251- Grass and mycelium can spread to dirt blocks which are submerged under general water
草方块和菌丝可以蔓延到淹没在水中的泥土上
MC-128493- Dolphins can wear armor
海豚可以穿上盔甲
MC-129058- Dolphins become permanent (can't despawn) after playing with an item
海豚在和物品嬉戏后不会自然消失
MC-129708- Armor slot icons are backwards
盔甲槽的图标反了
MC-129808- "demo.day.6" does not include the keybinding correctly
文本"demo.day.6"未正确包含按键绑定信息
MC-129849- Upgrade from 1.6.4 destroys world, spams errors
将1.6.4的世界更新至最新版本将会损坏世界
Please report any and all bugs you find in Minecraft to bugs.mojang.com. If nobody reports a bug, we can’t fix it! experimental development snapshots” and save. To switch to the normal version, you can select it in the dropdown at the bottom left corner of the launcher. Back up your world first or run the game on in a different folder (See the “new profile” dialog). Snapshots can corrupt your world, please backup and/or run them in a different folder from your main worlds.请在http://bugs.mojang.com报告Minecraft中的BUG。如果没人汇报BUG的话，我们无法修复它!如果你想试玩快照，请打开官 方启动器并点击“New Profile”按钮，选中“snapshots”并选择“Enable experimental development snapshots”并点击保存。如果想切换到普通的版本，你可以在启动器左下角按钮上方的下拉菜单中选择。在开始快照前备份你的世界或在不同的文件夹中启动快照(见“new profile”对话框)。快照可能会玩坏你的存档，请千万记得备份存档和/或在与你的存档不同文件夹里运行。