Mod configurations will get reset again, but your options.txt will not be touched unless you delete it, in which case it will get replaced with a default one.
Here are the biggest notable changes from all alpha and beta versions so far
Updated to NeoForge 21.1.199
Updated Serene Pioneers RPG datapack to 2.0.7
Mining skill tree experience has been adjusted, all levels need 200 more XP
Combat skill tree XP curve has been slightly adjusted to be a bit steeper
Added a first alpha version of my own mod, RPGOverlays (name is subject to change)
Carrying a compass in your inventory, including the newly added compass Curios slot will show a compass and location overlay, both can be enabled/disabled and configured independently.
Worn armor will be rendered at the bottom, so you can always have an eye on your armor durability which is especially useful during some boss fights.
Create Item Vaults are now a bit more viable to use, giving them sligthly more inventory space than a vanilla chest.
Balanced Waystones to use a scaling XP cost instead of Ender Pearls. Ender Pearls are only required for interdimensional travel now.
Tom's Simple Storage Mod has been removed. While it might have gotten better since the last time we used it I still remember it having the potential to cause lag on servers with multiple people. I encourage you to look into Creates new storage system or Occultisms version instead since I feel like those are also more fitting for the theme of the pack.
Adjusted the health multiplier for all Cataclysm bosses to 1.25 across the board.
Vanilla villages are a bit less common.
The number of enchantments on any item are limited to 5.
Balance changes to Librarian Villagers
Librarians no longer will sell enchanted books as their first trade
Their second trade is always guaranteed to have an enchanted book trade
Enchanted books now cost Arcane Essence instead of Emeralds
The pack now ships with a few Emotecraft emotes by default!
Cleaned up a lot of no longer used config files.
Mods
Added
Item Obliterator
RPGOverlays (early alpha)
Stardew Fishing
Structurify (in case we need to modify structure settings later)
Structory
Structory Towers
Removed
Convenient Effects (replaced by latest Subtle Effects update)
Immersive Overlays (replaced by RPGOverlays)
Sparse Structures (replaced by Structurify)
Tom's Simple Storage Mod
Updated all mods to current version
Configs
Item Obliterator
Added Cataclysm Meat Shredder to the blacklist (that item is still too OP)
JourneyMap
Adjusted the Minimap position down a bit to accommodate the effect icons
Subtle Effects
General
Changed Potion Particle Alpha Near Player from 0.2 to 0.1
Disabled Replace Spell Particle Render Type
Structurify
Changed vanilla village spacing from 45 to 60 (meaning they'll be on average spaced 60+- a few chunks apart)
Changed vanilla village separation from 20 to 40 (meaning they'll be at least 40 chunks apart)
Waystones
Changed the travel cost to require XP instead of Ender Pearls, with a fixed 100 minimum XP cost for intradimensional travel, scaling with distance traveled
Interdimensional travel costs a fixed 1000 XP and an Ender Pearl