Bukkit

• Adds custom blocks
• Gives the Editor an icon
• Fixes a bug that would prevent users from changing the silk touch flag of a block drop for a vanilla minecraft block
• Adds custom food
• Adds custom guns
• Adds firework projectile effects
• Adds push/pull projectile effects
• Adds sound projectile effects
• Adds potion aura projectile effects
• Adds launch knockback and impact knockback to custom projectiles
• Adds impact potion effects to custom projectiles
• Adds custom crossbows
• Limits the selection of items for Vanilla item with datavalue to items in minecraft 1.12
• Adds amounts and remaining items to repair items and ingredients of custom crafting recipes and container recipes
• Adds pocket containers
• Adds storage slots to custom containers
• Blocks the Change to default model with given parent feature until the texture of the item has been chosen

This version is marked beta because it adds a lot of new features without a lot of testing.