This is build 2240, a.k.a the official release of Simplified Textures Horizon Update, and will add more new simplified textures, item textures, and more!

 Added in previous development versions:
 
•Blaze Rod is simplified.
•Blaze Powder is simplified.
•Bowl is simplified.
•Chalkboards (all variants) is simplified.
•Empty Map is simplified.
•Filled Map is simplified.
•Locked Map is simplified.
•Nautilus Shell is simplified.
•Nether Star is simplified.
•Nether Wart is simplified.
•Painting item texture is simplified.
•Paper is simplified.
•String is simplified.
•Turtle Shell is simplified.
•Totem of Undying is simplified.
•Scute is simplified.
•Diamond Helmet, Diamond Chestplate, Diamond Leggings, and Diamond Boots is simplified.
•Apple, Golden Apple, and Enchanted Golden Apple is simplified.
•Beetroot is now simplified.
•Popped Chorus Fruit and Chorus Fruit is simplified.
•Cookie is simplified.
•Diamond Horse Armor is simplified.
•Acacia Door, Birch Door, Dark Oak Door, Iron Door, Jungle Door, Spruce Door. and Oak Door (item texture) are simplified.
•Dried Kelp is simplified.
•Dyes are now simplified.
•Ink Sac is simplified.
•Cocoa Beans is simplified.
•Bone Meal is simplified.
•Eye of Ender is simplified.
•Ender Pearl is simplified.
•Bottle of Experience (Experience Bottle) is simplified.
•Feather is simplified.
•Flint and Steel is simplified.
•Flint is simplified.
•Ghast Tear is simplified.
•Gunpowder is simplified.
•Heart of the Sea is simplified.
•Hopper (item texture) is simplified.
•Lantern (item texture) is simplified.
•Sweet Berries is simplified.
•Amethyst Block is simplified.
•Budding Amethyst is simplified.
•Oak Logs, Birch Log, Spruce Log, Jungle Log, Acacia Log, Dark Oak Log, and their respective wood variants is removed temporarily.
•Furnace is now simplified.
•Acacia Leaves is now simplified.
•Iron Trapdoor is now simplified (bug existed when iron trapdoor's simplified texture didn't show up, it is now fixed) 
•Loom is now simplified.
•Fire Charge is now simplified.
•Flower Pot is now simplified.
•Lodestone is now simplified.
•Lead (item texture) is now simplified. 
•Wheat is now simplified.
•Sugar is now simplified.
•Sugar Canes are now simplified.
•Wooden Tools are now simplified.
•Stone Tools are now simplified.
•Iron Tools are now simplified. 
•Golden Tools are now simplified. 
•Netherite Tools are now simplified.

•Azalea Leaves and Flowering Azalea Trees are now changed.
•Banner Pattern is very slightly tweaked.
•Buckets, Buckets of Fish, Bucket of Powdered Snow, Bucket of Milk, Bucket of Lava, and Bucket of Water are tweaked.

 Added textures in the official release:
 
•Doors are all simplified.
•Trapdoors are all simplified.
•Chains are now simplified.
•Tropical Fish, Pufferfish, Raw Cod, Cooked Cod, Raw Salmon, and Cooked Salmon are now simplified.
•Gold Armor, Golden Horse Armor, and Gold Nugget are now simplified.
•Iron Armor, Iron Horse Armor, and Iron Nugget are now simplified.
•Kelp (item texture) is now simplified.
•Lever is now simplified.
•Speckled Melons are now simplified.
•Melon Slices are now simplified.
•Name Tags are now simplified.
•Minecart with Chest, Minecart with Hopper, Minecart with TNT, Minecart with Command Block, and Minecart are now simplified.
•Phantom Membranes are now simplified.
•Prismarine Crystals are now simplified.
•Prismarine Shards are now simplified.
•Pumpkin Pies are now simplified.