I've apparently had this update lined since 2019?
I have no idea what it had, but hope it at least fixes the issue where the levels were unordered.
(The levels having an order is like 90% of this pack's design).

A Place To Explode (Pierce the Light):
-Changes to the colour of the liquids in hard mode.
-The last Vopila in hard mode is now locked behind a full wall to stop it escaping.
-Some infinity tashbets were replaced with regular tashbets to make it safer to navigate when if they respawn with you in the middle.
-Another Vopila falls into the abyss in hard mode (removing it).

World Remix (Boss Stage Remix):
-Changes to appearance of the first/last chamber, and slight layout differences.
-Wormholes added everywhere incase Savant phases through the pebergs.
-Slight change for Boki in hard in the second/second chamber.
-The last/first chamber was moved around.

Muscle Forcast (Descent of the Star):
-Hard mode changed in appearance.

Boki's Snowy Ascent:
Downgraded the Lythees.
Enemies drop more powerups (tornado was too powerful which is why it was reduced).
One of the Zordais is now invincible.

(Only NOW do I know you can record changes...oops)

World Remix (Boss Stage Remix):
Tweaked a bit to have the final chamber keep in theme.
Some enemies were also moved around too.

Bubble Breaker (Bubble Storm Overload):
The boss only launches the magnets horizontally for Savant, rather than vertically.
Savant has more room to move and items are more likely to land where he can reach them.
The boss charges closer to the building for Normal mode.
Boki no longer has an absurdly long fall, and will always warp to the top when she falls.
If the boss falls, you can at least see Boki's feet until the returns.

Secure Ascent:l
The enemies in Savant's variant were heftily revised. It now has CANNONS and HACKING. Still has Pawn Zordais everywhere though. In fact the Pawn Zordais are a central gimmick. The dogs are now regular dogs.
Boki's was changed to not use dogs since those are Hard mode enemies.