diff --git a/wiki/tutorials/custom-tiers/page.kubedoc b/wiki/tutorials/custom-tiers/page.kubedoc
index fa8a78d1..f871e2bf 100644
--- a/wiki/tutorials/custom-tiers/page.kubedoc
+++ b/wiki/tutorials/custom-tiers/page.kubedoc
@@ -3,33 +3,70 @@ They are not reloadable without restarting the game.
 
 # Tool Tiers
 
+|> 1.21.1
 ```js
 ItemEvents.toolTierRegistry(event => {
-  event.add('tier_id', tier => {
-    tier.uses = 250
-    tier.speed = 6
-    tier.attackDamageBonus = 2
-    tier.level = 2
-    tier.enchantmentValue = 14
-    tier.repairIngredient = '#forge:ingots/iron'
-  })
+	event.add('tier_id', tier => {
+		tier.uses = 250
+		tier.speed = 6
+		tier.attackDamageBonus = 2
+		tier.incorrectBlocksForDropsTag = 'minecraft:incorrect_for_iron_tool'
+		tier.enchantmentValue = 14
+		tier.repairIngredient = '#forge:ingots/iron'
+	})
 })
 ```
+<||> 1.19.2 - 1.20.1
+```js
+ItemEvents.toolTierRegistry(event => {
+	event.add('tier_id', tier => {
+		tier.uses = 250
+		tier.speed = 6
+		tier.attackDamageBonus = 2
+		tier.level = 2
+		tier.enchantmentValue = 14
+		tier.repairIngredient = '#forge:ingots/iron'
+	})
+})
+```
+<|
 
 # Armor Tiers
 
+|> 1.21.1
+```js
+StartupEvents.registry('armor_material', event => {
+	event
+		.create('tier_id')
+		// How many armor points does each piece of armor contribute. You can also use 'body' to create a piece of armor
+		// which gives armor points regardless of where it is worn.
+		.defense({ boots: 2, leggings: 5, chestplate: 6, helmet: 2 })
+		// The enchantment value.
+		.enchantmentValue(9)
+		// The equip sound. It may be a string representing a sound.
+		.equipSound('minecraft:item.armor.equip_iron')
+		// A **supplier** of the repair ingredient to use. It's a function that returns an Ingredient.
+		.repairIngredient(() => Ingredient.of('#forge:ingots/iron'))
+		// Armor toughness. Diamond has 2, Netherite has 3.
+		.toughness(0)
+		// Knockback resistance. Netherite has 0.1.
+		.knockbackResistance(0)
+})
+```
+<||> 1.19.2 - 1.20.1
 ```js
 ItemEvents.armorTierRegistry(event => {
-  event.add('tier_id', tier => {
-    tier.durabilityMultiplier = 15 // Each slot will be multiplied with [13, 15, 16, 11]
-    tier.slotProtections = [2, 5, 6, 2] // Slot indicies are [FEET, LEGS, BODY, HEAD]
-    tier.enchantmentValue = 9
-    tier.equipSound = 'minecraft:item.armor.equip_iron'
-    tier.repairIngredient = '#forge:ingots/iron'
-    tier.toughness = 0 // diamond has 2, netherite 3
-    tier.knockbackResistance = 0
-  })
+	event.add('tier_id', tier => {
+		tier.durabilityMultiplier = 15 // Each slot will be multiplied with [13, 15, 16, 11]
+		tier.slotProtections = [2, 5, 6, 2] // Slot indicies are [FEET, LEGS, BODY, HEAD]
+		tier.enchantmentValue = 9
+		tier.equipSound = 'minecraft:item.armor.equip_iron'
+		tier.repairIngredient = '#forge:ingots/iron'
+		tier.toughness = 0 // diamond has 2, netherite 3
+		tier.knockbackResistance = 0
+	})
 })
 ```
+<|
 
-For default values see [[/tutorials/item-modification|item modification tutorial]].
\ No newline at end of file
+For default values see [[/tutorials/item-modification|item modification tutorial]].