The video discusses 23 changes and updates in Minecraft's 1.17 "Caves and Cliffs" update that players may have missed. The changes include:
1. Shulker boxes can now pop when destroyed, saving some items.
2. Grass path blocks can be made with dirt, coarse dirt, and mycelium.
3. Lapis lazuli blocks are now called "block of lapis lazuli".
4. Rails can now be waterlogged, allowing underwater roller coasters.
5. Clocks have been updated with new textures and shading.
6. Firework rockets can now be crafted with a single click.
7. Pufferfish effects have been reduced.
8. The game's credits can now be sped up.
9. Suspicious stew can be consumed even with a full hunger bar.
10. A new copper ingot has been added, which can be obtained by killing Drowned mobs.
11. Fire aspect enchantment now works on zombies and husks, baking potatoes.
12. Slimes can now be summoned with a maximum size of 128.
13. Absorption effect now displays correctly with poison.
14. Signs now match the plank texture from 1.14.
15. The replace item command has been replaced with /item replace.
16. Experience orbs now merge to reduce lag.
17. Redstone components are now at the top of the item list.
18. A dark mode option has been added to the game's start screen.
19. Spectator mode now allows players to see through lava.
20. A new game rule allows players to set the percentage of players needed to sleep to skip the night.
21. Entities can now be tagged with "has visual fire" to make them appear on fire without taking damage.
22. The character limit for item names has been increased from 35 to 50.
23. Minecraft now supports Java 16, improving performance and allowing modders to use modern features.
Overall, the update includes a mix of quality-of-life changes, new features, and bug fixes that improve the gameplay experience.
Here are the key facts extracted from the text:
1. Minecraft's Caves and Cliffs update (1.17) includes several new features and changes.
2. Shulker boxes now pop when destroyed, allowing some items to escape.
3. Grass path blocks can now be made with dirt, coarse dirt, and mycelium.
4. Lapis lazuli is now referred to as a "block of lapis lazuli" to match other minerals.
5. Rails can now be waterlogged, allowing for underwater roller coasters.
6. The clock item has been updated with new shading and colors.
7. Elytra can now be crafted more easily with the addition of a quickcraft option.
8. Pufferfish now have reduced poison effects.
9. Suspicious stew can now be consumed even when the hunger bar is full.
10. A new ingot, copper, has been added to the game.
11. The Drowned mob now has a chance to drop copper ingots.
12. Fire Aspect can now bake potatoes dropped by husk zombies and zombie villagers.
13. Slimes can now be summoned with a maximum size of 128.
14. The absorption effect now displays correctly with poison.
15. Signs now match the plank texture from 1.14.
16. The replace item command has been replaced with the "/item replace" command.
17. Experience orbs now merge to reduce entity count.
18. Redstone dust and torches are now listed at the top of the item list.
19. Dark mode is now available in the game's accessibility settings.
20. Spectator mode now allows players to see through lava.
21. A new game rule allows players to set the percentage of players needed to sleep to morning.
22. Entities can now be given the "has visual fire" tag.
23. The anvil's character limit for item names has been increased from 35 to 50 characters.
24. Minecraft now supports running on Java 16, improving performance and modding capabilities.