Name Tag Upgrade

Evidence

Ran on Kiln's test stand (2026-11-04): NameTagUpgradeFabric did not start: java.lang.NoClassDefFoundError: net/minecraft/util/thread/BlockableEventLoop; NameTagUpgradeFabricClient did not start: java.lang.NoClassDefFoundError: net/minecraft/util/thread/BlockableEventLoop.

What it needs from Kiln

• an access widener
• Mixin
• com.mojang.blaze3d.platform.cursor.CursorType
• com.mojang.blaze3d.platform.cursor.CursorTypes
• net.minecraft.client.StringSplitter
• net.minecraft.client.gui.components.AbstractWidget
• net.minecraft.client.gui.components.Button
• net.minecraft.client.gui.components.Button.Builder
• net.minecraft.client.gui.components.Button.OnPress
• net.minecraft.client.gui.components.EditBox
• net.minecraft.client.gui.components.EditBox.TextFormatter
• net.minecraft.client.gui.components.WidgetSprites
• net.minecraft.client.gui.navigation.ScreenAxis
• net.minecraft.client.gui.navigation.ScreenRectangle
• net.minecraft.client.gui.screens.inventory.tooltip.BelowOrAboveWidgetTooltipPositioner
• net.minecraft.client.gui.screens.inventory.tooltip.ClientTooltipPositioner
• net.minecraft.client.input.CharacterEvent
• net.minecraft.client.input.MouseButtonEvent
• net.minecraft.client.renderer.RenderPipelines
• net.minecraft.core.component.DataComponents
• net.minecraft.network.chat.CommonComponents
• net.minecraft.network.chat.ComponentUtils
• net.minecraft.network.chat.FormattedText
• net.minecraft.network.chat.FormattedText.StyledContentConsumer
• net.minecraft.network.chat.Style
• net.minecraft.network.codec.ByteBufCodecs
• net.minecraft.network.codec.StreamCodec
• net.minecraft.util.FormattedCharSequence
• net.minecraft.util.FormattedCharSink
• net.minecraft.util.Mth
• net.minecraft.util.StringDecomposer
• net.minecraft.util.StringUtil
• net.minecraft.util.Util
• net.minecraft.world.entity.EntityType
• net.minecraft.world.entity.EquipmentSlot
• net.minecraft.world.entity.Leashable
• net.minecraft.world.entity.Mob
• net.minecraft.world.entity.Shearable
• net.minecraft.world.entity.item.ItemEntity
• net.minecraft.world.item.enchantment.EnchantmentEffectComponents
• net.minecraft.world.item.enchantment.EnchantmentHelper
• net.minecraft.world.item.equipment.Equippable
• and 46 more

On the roadmap: Minecraft's libraries and client API (0.2), Code next to data (0.3), Machines (0.4), Mixin (0.5)

In the author's words

Smarter name tags with renaming on the go and handy quality-of-life improvements.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file nametagupgrade-v26.3.1-mc26.3.x+fabric.jar. The scan reads the mod's classes; it does not run them.