A lot of changes in the Map Display API department! And some bugfixes.

Map Display API has many new features:

• 3D model rendering for map canvas
  • Vanilla Minecraft client/Resource pack model and texture loading
  • Minecraft blocks can be rendered onto maps
  • Depth buffer, directional/ambient lighting
• Map Display persistent items
  • Persistent map display items with UUID
  • Only uses map durability 0 for all virtual map items
    
  • Automatically creates the map display instance based on item metadata
  • Show the same Map Display instance to multiple viewers automatically (or not, and keep it unique per player)
  • onMapItemChanged callback function
  • Changing the map item updates it in all player's inventories and item frames that show the item
• Glitches have been fixed
  • Item frame playing 'pop' sounds when the item in it is changed
  • Player held map closing and opening rapidly when item is changed
  • Ghost map items staying in player inventories when controlling

Bugfixes:

• Supports the very latest development builds of Spigot 1.12.1, which introduced some breaking changes
• Fixed some tile entities not converting to BlockState resulting in errors
• Fixes a glitch on MC 1.8.8 where players collide with their vehicle, not handled by Entity Controllers (affects TrainCarts)
• Fix entity class name lookup failure on MC 1.8.8
  
• No longer exposes the Spigot server implementation as dependency. Only uses it under test. This prevents potential issues for depending plugins when classes can not be found, such as GameProfile.
• Added 'isShuttingDown' property allowing plugins to check whether it is being disabled, or reloaded.
• Potential memory leaks during reloading have been fixed