| Interface | Description | 
|---|---|
| org.bukkit.block.Bed | does not provide useful information beyond the material itself | 
| org.bukkit.block.FlowerPot | not a tile entity in future versions of Minecraft | 
| org.bukkit.block.NoteBlock | not a tile entity in future versions of Minecraft | 
| org.bukkit.UnsafeValues | 
| Class | Description | 
|---|---|
| org.bukkit.event.player.PlayerAchievementAwardedEvent | future versions of Minecraft do not have achievements | 
| org.bukkit.event.player.PlayerChatEvent | This event will fire from the main thread and allows the use of
     all of the Bukkit API, unlike the  AsyncPlayerChatEvent.
     Listening to this event forces chat to wait for the main thread which
     causes delays for chat.  | 
| org.bukkit.event.player.PlayerChatTabCompleteEvent | This event is no longer fired due to client changes | 
| org.bukkit.event.player.PlayerPickupItemEvent | |
| org.bukkit.event.player.PlayerPreLoginEvent | This event causes synchronization from the login thread;  AsyncPlayerPreLoginEventis preferred to keep the secondary threads
     asynchronous. | 
| org.bukkit.material.FlowerPot | Flower pots are now tile entities, use
  FlowerPot. | 
| org.bukkit.material.MaterialData | all usage of MaterialData is deprecated and subject to removal.
 Use  BlockData. | 
| org.bukkit.material.SpawnEgg | use  SpawnEggMeta | 
| org.bukkit.potion.Potion | 
| Enum | Description | 
|---|---|
| org.bukkit.Achievement | future versions of Minecraft do not have achievements | 
| org.bukkit.entity.Evoker.Spell | future versions of Minecraft have additional spell casting
 entities. | 
| org.bukkit.entity.Horse.Variant | different variants are differing classes | 
| org.bukkit.entity.Skeleton.SkeletonType | |
| org.bukkit.event.entity.EntityDamageEvent.DamageModifier | This API is responsible for a large number of implementation
 problems and is in general unsustainable to maintain. It is likely to be
 removed very soon in a subsequent release. Please see
 https://www.spigotmc.org/threads/194446/ for more information. | 
| org.bukkit.scoreboard.NameTagVisibility | replaced by  Team.OptionStatus | 
| org.bukkit.SkullType | check  Materialinstead | 
| Field | Description | 
|---|---|
| org.bukkit.map.MapPalette.BLUE | Magic value | 
| org.bukkit.map.MapPalette.BROWN | Magic value | 
| org.bukkit.map.MapPalette.DARK_BROWN | Magic value | 
| org.bukkit.map.MapPalette.DARK_GRAY | Magic value | 
| org.bukkit.map.MapPalette.DARK_GREEN | Magic value | 
| org.bukkit.map.MapPalette.GRAY_1 | Magic value | 
| org.bukkit.map.MapPalette.GRAY_2 | Magic value | 
| org.bukkit.map.MapPalette.LIGHT_BROWN | Magic value | 
| org.bukkit.map.MapPalette.LIGHT_GRAY | Magic value | 
| org.bukkit.map.MapPalette.LIGHT_GREEN | Magic value | 
| org.bukkit.map.MapPalette.PALE_BLUE | Magic value | 
| org.bukkit.map.MapPalette.RED | Magic value | 
| org.bukkit.map.MapPalette.TRANSPARENT | Magic value | 
| org.bukkit.map.MapPalette.WHITE | Magic value | 
| org.bukkit.Material.LEGACY_PREFIX | 
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