"1.21.1 (9.3.12)"

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• The Java requirement for 1.21.1 is Java 21. This will come shipped with most launchers. For manual installation, you may need to install a later JDK.
• The minimum Neoforge version for this update is 21.1.200 and is required for a Pixelmon client to run.
• Beta releases will move to the recommended downloads after a few days of public release.

Additions

• New Pokemon have been added:
  • Iron Crown
  • Iron Boulder
• New Research has been added.
  • Capture Cobalion to begin a new research.
  • Capture Terrakion to begin a new research.
• Added AG Rotation, AG Triples, Uber Rotation, and Uber Triples battle rules.
• Added a new Monotype battle rule, now available in the "AG Monotype" PvP battle rule set.
  • Includes new configuration files: monotype.json and ag_monotype.json to enforce monotype team restrictions.
• Added a new Poké Ball Rendering Mode setting under Options → Video Settings
  (Auto — default, Smooth, Blocky, Sprite; Auto follows your global rendering mode).
• Added a new keybind to instantly open the summary screen of your currently selected Pokémon.
• The same keybind also opens the summary screen while hovering over a Pokémon in your inventory UI.

Changes

• 23130 Shoulder-riding Pokémon now give a message when they fall off.
• Overhauled the Poké Ball capture and send-out animation.

Fixes

• Amaura and Aurorus now display their manes correctly from both sides.
• Binacle’s model no longer appears see-through in certain areas.
• Cosmog’s body no longer shows unintended holes.
• Tinkaton’s hammer now renders properly without transparency issues.
• Vivillon’s wings are now visible from both sides.
• Petilil and Lilligant have had model holes fixed and now include proper animations.
• 23130 Pokémon no longer become wild or duplicable when falling off a player’s shoulder; they now return to their Poké Ball under proper conditions.
• 23130 Pokémon are far less likely to slip from a player’s shoulder, only doing so when the player takes damage or dies.
• Critical Capture particles now trigger at the correct moment.
• Poké Balls no longer fall through the ground during captures in battle.
• Restored missing Poké Ball capture and release sounds.
• Critical captures now always perform a single shake.
• Shake animations now play correctly.
• Red ring flash during the shake sequence now displays properly.
• Thrown Poké Balls no longer veer off in random directions during battle.
• Proper momentum is now applied after the beam animation, allowing the ball to fall naturally.
• Fixed an issue where Pokémon could take non-battle damage during battles, causing them to faint and crash the encounter (especially when attempting to catch).
• Fixed a crash that could occur after finishing a battle when a Pokémon attempted to level up or evolve without a valid storage reference.

Battle

• Fixed an issue where Pokémon could take non-battle damage during battles, causing them to faint and crash the encounter (especially when attempting to catch).
• Fixed Pokémon not giving the correct drops after being KO’d.
• 23095 Level-up messages in battle now appear only once instead of duplicating.
• 23095 Level-up and move-learning screens no longer trigger twice.
• 23095 Level-up, move-learn, and forfeit screens no longer disrupt the battle menu’s rendering.

Datapack

• Added use_move interaction event
• Added hit_crit interaction event
• Added equip_item interaction event
• Added slicing_move interaction condition