Package org.bukkit

Removed Classes and Interfaces
GameEvent	Represents a generic Mojang game event.
Particle.DustTransition	Options which can be applied to a color transitioning dust particles.
RegionAccessor	A RegionAccessor gives access to getting, modifying and spawning Biome, BlockState and Entity, as well as generating some basic structures.
Vibration	Represents a vibration from a Skulk sensor.
Vibration.Destination
Vibration.Destination. BlockDestination
Vibration.Destination. EntityDestination

 

Added Interfaces
World.ChunkLoadCallback	This is the Legacy API before Java 8 was supported.

 

Changed Classes and Interfaces
Bukkit	Represents the Bukkit core, for version and Server singleton handling
Chunk	Represents a chunk of blocks
GameRule	GameRules dictate certain behavior within Minecraft itself For more information please visit the Minecraft Wiki
Location	Represents a 3-dimensional position in a world.
Material	An enum of all material IDs accepted by the official server and client
Nameable
NamespacedKey	Represents a String based key which consists of two components - a namespace and a key.
OfflinePlayer
Particle
Registry	Represents a registry of Bukkit objects that may be retrieved by NamespacedKey.
Server	Represents a server implementation.
Server.Spigot
Sound	An Enum of Sounds the server is able to send to players.
Tag	Represents a tag that may be defined by the server or a resource pack to group like things together.
UnsafeValues	This interface provides value conversions that may be specific to a runtime, or have arbitrary meaning (read: magic values).
World	Represents a world, which may contain entities, chunks and blocks
WorldBorder
WorldCreator	Represents various types of options that may be used to create a world.