diff --git a/changelogs/4.0-snapshot.md b/changelogs/4.0-snapshot.md
index 7c3849d68..ed2606f2d 100644
--- a/changelogs/4.0-snapshot.md
+++ b/changelogs/4.0-snapshot.md
@@ -389,13 +389,34 @@ This version features substantial changes to the network system, improving coher
 
 ### Item
 #### General
-- `ProjectileItem->getProjectileEntityType()` now returns a ::class constant instead of an entity save ID.
+- `Item->count` is no longer public.
+- The hierarchy of writable books has been changed: `WritableBook` and `WrittenBook` now extend `WritableBookBase`.
+- The following API methods have signature changes:
+  - `WritableBookBase->setPages()` now accepts `WritableBookPage[]` instead of `CompoundTag[]`.
+  - `ItemFactory::get()` no longer accepts `string` for the `tags` parameter.
+  - `ItemFactory::fromString()` no longer accepts a `$multiple` parameter and now only returns `Item`, not `Item|Item[]`.
+- The following methods are now fluent:
+  - `WritableBookBase->setPages()`
+  - `Item->addEnchantment()`
+  - `Item->removeEnchantment()`
+  - `Item->removeEnchantments()`
+  - `Armor->setCustomColor()`
+  - `WrittenBook->setTitle()`
+  - `WrittenBook->setAuthor()`
+  - `WrittenBook->setGeneration()`
 - The following API methods have been removed:
   - `Item->getNamedTagEntry()`
   - `Item->removeNamedTagEntry()`
   - `Item->setDamage()`: "Damage" is now immutable for all items except `Durable` descendents.
   - `Item->setNamedTagEntry()`
-
+  - `Item::get()`: this was superseded by `ItemFactory::get()` a long time ago
+  - `Item::fromString()`: this was superseded by `ItemFactory::fromString()` a long time ago
+  - `Item->setCompoundTag()`
+  - `Item->getCompoundTag()`
+  - `Item->hasCompoundTag()`
+  - `ProjectileItem->getProjectileEntityType()`
+- The following methods have been renamed:
+  - `Item->getDamage()` -> `Item->getMeta()`
 - The following methods have been moved to `pocketmine\inventory\CreativeInventory`:
   - `Item::addCreativeItem()` -> `CreativeInventory::add()`
   - `Item::clearCreativeItems()` -> `CreativeInventory::clear()`
@@ -404,6 +425,41 @@ This version features substantial changes to the network system, improving coher
   - `Item::initCreativeItems()` -> `CreativeInventory::init()`
   - `Item::isCreativeItem()` -> `CreativeInventory::contains()`
   - `Item::removeCreativeItem()` -> `CreativeInventory::remove()`
+- The following classes have been added:
+  - `ArmorTypeInfo`
+  - `Boots`
+  - `Chestplate`
+  - `Fertilizer`
+  - `Helmet`
+  - `Leggings`
+  - `LiquidBucket`
+  - `MilkBucket`
+  - `WritableBookBase`
+  - `WritableBookPage`
+- The following API methods have been added:
+  - `Armor->getArmorSlot()`
+  - `ProjectileItem->getProjectileEntityClass()`: returns the class of projectile to be created when thrown
+- The following classes have been removed:
+  - `ChainBoots`
+  - `ChainChestplate`
+  - `ChainHelmet`
+  - `ChainLeggings`
+  - `DiamondBoots`
+  - `DiamondChestplate`
+  - `DiamondHelmet`
+  - `DiamondLeggings`
+  - `GoldBoots`
+  - `GoldChestplate`
+  - `GoldHelmet`
+  - `GoldLeggings`
+  - `IronBoots`
+  - `IronChesplate`
+  - `IronHelmet`
+  - `IronLeggings`
+  - `LeatherBoots`
+  - `LeatherCap`
+  - `LeatherPants`
+  - `LeatherTunic`
 
 #### Enchantment
 - The following API methods have been renamed: