Almost every mob has its own mob shard, these can be used to craft items that relate to the mob and spawn eggs.
Crafted spawn eggs can be further used to craft survival spawners that function almost identically to regular spawners but spawn mobs at a slower rate.
Note: ores have since been removed.
Bundles are now craftable and can hold up to 128 items.
Bundles can also now be upgraded to increase their storage space.
After the dragon has died, it will fling several items into the air.
These include:
Additionally, dragon scales can be used to craft a new tier of tools and armor which are slightly more powerful than netherite.

A few new enchantments have been added for you to use.
Some of these enchantments include:
Pipes are an alternative to hoppers and can transport/insert/extract items in all 6 directions.
To transport items pipes require a pipe engine to be connected within 8 blocks.
What direction items move in and whether a pipe will insert or extract items is also dependent on what direction the pipe engine is placed in.

Slime pearls can be crafted from one slime ball and one ender pearl and will bounce once after thrown.
Useless Additions adds a bunch of other stuff for you to use, but you'll have to find out about those in game. :D
If you have any ideas you'd like to see added, let me know and I might add them!
Discord Server for Suggestions/Feedback
Cross mod support for hud icons
Please use REI instead of JEI as the mod does not currently support JEI for its crafting stations/recipe types