⚠️ This version is incompatible with any plugin that used the CommandAPI version 8.X.X or below! (See documentation for more information)

New features

#360, #369 Made executor methods now use CommandArguments to allow for accessing arguments by name instead of index
#162, #387, #393 Added optional arguments
#388 Added new hook-paper-reload config option to toggle whether the CommandAPI hooks into /minecraft:reload
Reworked the implementation of ItemArgument, so the ItemStack count is correctly reflected and ItemMeta is properly assigned
Made the TeamArgument return a Team instead of a String
Made the ObjectiveArgument return a Objective instead of a String
#391 Made the CommandAPI only complain about commands registered in a plugin.yml if this plugin.yml belongs to the plugin calling the CommandAPI
#422 Added a way to access the raw command a player typed from the executor
#431 Added a way to access more info to construct lists for the ListArgumentBuilder
Added support for sidebar team colors using an enum for ScoreboardSlot

Fixed commandapi-preprocessor appearing in the plugin and shaded jar file
#390 Fixed .executesNative()'s CommandSender's getLocation() method returning the wrong pitch and yaw
Fixed tags showing up in the BiomeArgument when they shouldn't have been doing so
Fixed LocationArgument with BLOCK_POSITION not returning locations in unloaded chunks
Fixed IntegerRangeArgument and FloatRangeArgument not working on Minecraft 1.16.4 and 1.16.5
Fixed RecipeArgument not working on Minecraft 1.17
Fixed TeamArgument not working on Minecraft 1.17
Fixed AdventureChatArgument not working on Minecraft 1.17
Fixed commands with no executors not being caught by the CommandAPI
Fixed ParticleArgument producing "Invalid particle data type" warnings on Minecraft 1.16.5 and below
Fixed FunctionArgument not working on Minecraft 1.17.x and 1.18.x
Fixed NamespacedKeyArgument not working on Minecraft 1.18
Fixed the FunctionArgument not correctly retrieving datapack (function) tags in 1.17+
Removed some redundant vibration particle handling code that would never be run under any circumstances

#384 Fixed various particle data not being documented for the ParticleArgument documentation page
Fixed broken links in the documentation (using Michael-F-Bryan/mdbook-linkcheck)
Refactored documentation argument page names for consistency
Added Kotlin DSL examples

Removed all previously deprecated constructors, classes and methods
Completely refactored the entire CommandAPI project to help support other platforms
Added a live dev build of the documentation at commandapi-live-docs.jorel.dev
Improved mobile support for the CommandAPI home page
Added the CommandAPI's Modrinth link to the CommandAPI home page
Dropped support for Minecraft 1.13 - 1.14.4. Please use an older version of the CommandAPI, or raise an issue on GitHub to bring back support for these versions