Old babies

Evidence

Ran on Kiln's test stand (2026-11-04): OldBabies did not start: java.lang.NoClassDefFoundError: net/minecraft/world/entity/EntityTypes.

What it needs from Kiln

• an access widener
• Mixin
• net.minecraft.client.model.BabyModelTransform
• net.minecraft.client.model.EntityModel
• net.minecraft.client.model.HumanoidModel
• net.minecraft.client.model.animal.armadillo.AdultArmadilloModel
• net.minecraft.client.model.animal.armadillo.BabyArmadilloModel
• net.minecraft.client.model.animal.axolotl.AdultAxolotlModel
• net.minecraft.client.model.animal.axolotl.BabyAxolotlModel
• net.minecraft.client.model.animal.bee.AdultBeeModel
• net.minecraft.client.model.animal.bee.BabyBeeModel
• net.minecraft.client.model.animal.camel.AdultCamelModel
• net.minecraft.client.model.animal.camel.BabyCamelModel
• net.minecraft.client.model.animal.chicken.AdultChickenModel
• net.minecraft.client.model.animal.chicken.ColdChickenModel
• net.minecraft.client.model.animal.cow.ColdCowModel
• net.minecraft.client.model.animal.cow.CowModel
• net.minecraft.client.model.animal.cow.WarmCowModel
• net.minecraft.client.model.animal.dolphin.DolphinModel
• net.minecraft.client.model.animal.equine.AbstractEquineModel
• net.minecraft.client.model.animal.equine.BabyDonkeyModel
• net.minecraft.client.model.animal.equine.BabyHorseModel
• net.minecraft.client.model.animal.equine.DonkeyModel
• net.minecraft.client.model.animal.equine.HorseModel
• net.minecraft.client.model.animal.feline.AdultCatModel
• net.minecraft.client.model.animal.feline.AdultFelineModel
• net.minecraft.client.model.animal.feline.AdultOcelotModel
• net.minecraft.client.model.animal.feline.BabyCatModel
• net.minecraft.client.model.animal.feline.BabyOcelotModel
• net.minecraft.client.model.animal.fox.AdultFoxModel
• net.minecraft.client.model.animal.fox.BabyFoxModel
• net.minecraft.client.model.animal.goat.BabyGoatModel
• net.minecraft.client.model.animal.goat.GoatModel
• net.minecraft.client.model.animal.llama.BabyLlamaModel
• net.minecraft.client.model.animal.llama.LlamaModel
• net.minecraft.client.model.animal.panda.BabyPandaModel
• net.minecraft.client.model.animal.panda.PandaModel
• net.minecraft.client.model.animal.pig.ColdPigModel
• net.minecraft.client.model.animal.pig.PigModel
• net.minecraft.client.model.animal.polarbear.BabyPolarBearModel
• net.minecraft.client.model.animal.polarbear.PolarBearModel
• net.minecraft.client.model.animal.sheep.SheepFurModel
• and 24 more

On the roadmap: Minecraft's libraries and client API (0.2), Code next to data (0.3), Mixin (0.5)

In the author's words

Restores the original large headed look of baby mobs

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file OldBabies-1.5.jar. The scan reads the mod's classes; it does not run them.