Release Notes - Minecraft: Java Edition - Version 21w05b - HTML format


  • [MC-203813] - Copper blocks are named inconsistently
  • [MC-205054] - Copper blocks called "Copper Block", while blocks of quartz are called "Block of Quartz"
  • [MC-213788] - The game can randomly freeze
  • [MC-213802] - Copper is not upgraded correctly from pre-21w05a worlds

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