Possibly one of my favorite updates since the release of version 2:

• Added 10 new armor trim patterns
• Added 30 new armor trim materials
• Added 9 new data driven cow variants: albino, ashen, cookie, cream, dairy, pinto, sunset, umbra and nostalgic
• Added the "New Thing" banner pattern from the 23w13a_or_b joke update
• Added more foods that can be consumed with the Food Reserves enchantment
• Illusioners no longer have a chance to spawn on ravagers
• Rearranged loot tables
• Changed some mob's loot tables
• Changed some biomes to accommodate the new mob variants
• Fixed the nutrition of roasted spruce cones, birch catkins, jungle seeds and pumpkin seeds

Learn more about the new armor trims and where to find them on the wiki