- Hardcore Mode New game mode introduced.
- Locked to highest difficulty.
- No respawns; players become spectators upon death.
- New item type for stacking different blocks/items together in one inventory slot.
- Packs a maximum of one stack (usually 64 items) of various item types.
- Bundles can be crafted with one String above one Leather.
- Left-handed mode re-implemented for touch devices.
- Added text-to-speech voiceover for items in Marketplace Pass and Realms Content tabs.
- Wind Charges can no longer be hit shortly after throwing.
- Interacting with beds sets respawn points regardless of nearby enemies.
- Hardcore mode is now fully released, locking game mode to Survival and difficulty to Hard.
- Players maintain velocity when hitting the edge of the generated world.
- Various fixes to mob attacks and behaviors.
- Reorganized items for intuitive sorting.
- Specific item groups moved to match logical categories.
- New block instances created for various items (e.g., mushroom_stem).
- Fixes to visibility issues with vines and spawner sounds.
- ShowRecipeMessages game rule no longer considered a cheat.
- New ‘entity_offset’ parameter added to camera command.
- Armor HUD updates correctly when equipped armor breaks.
- Various improvements to menu interactions and tooltips.
- Adjustments to mob drops and behaviors (e.g., Polar Bears drop Cooked Fish).
- Wolves and other pets can now teleport to their owner more effectively.
- Fixed numerous bugs impacting gameplay, mob behavior, and commands.
- Certain visual and placement bugs still in existence, especially in slow connection scenarios.
- Support for VR/MR devices will end in March 2025, with a final update released then.
Source: https://www.psu.com/news/minecraft-upda ... e-bundles/