- Added the “Library Index” as a new way to use Papyrus
- Added various new features to the item filter
- Normal Books obtainable in the starting room can now roll Negative Mods from Ascension 3 onward
- Increased the amount of Ink dropped by enemies
- Increased the amount of Ink obtained when dismantling Normal Books, Skill Books, and Unique Books
- Increased the enhancement cost of Normal Books
- Increased the enhancement cost of Unique Books
- Increased the shop reroll cost
- Increased the cost of rerolling Mods on Normal Books
- The first Mod reroll on Normal Books now costs 0
- Increased the cost of upgrading Mods on Normal Books
- The first Mod upgrade on Normal Books now costs 0
- Increased the amount of Strength, Intelligence, and Dexterity gained from Mods on Normal Books
- Added Ascension 5 and 6
- Reduced the power of damage-over-time skills used by enemies in Layers 3–4
- The following properties can now appear on Negative Mods:
- Life Steal effects, auto-recovery effects, mana recovery on normal attacks, shield increases
- Significantly increased the Steel Pool values obtained from Normal Books and Runestone Notables
- Increased the Critical increase value obtained from Chigusa’s Orb (Green Orb)
- Reduced the base damage of Quasar
- Increased the base damage of Brinicle Nova and Super Nova
- Increased skill and ability scaling for damage-over-time effects
- Increased Nova-related damage bonuses and base damage values obtained from Normal Books and Runestone Notables
- Reduced Estra’s self-damage to 10%
- Increased the Steel Pool value obtained from The Last Astronomer
- Increased the number of Steel instances and Steel Pool value obtained from Materialism
- Increased the number of Steel instances and Steel Pool value obtained from Russell’s Teapot
- Increased the number of Steel instances obtained from Tatar Desert
- Increased Nova base damage obtained from Phantasma
- Increased Ray base damage obtained from Psycho Candy
- Möbius Ring now requires 120 Strength, Intelligence, and Dexterity to activate
- Möbius Ring now drops at ★5
- Buffed Queen of Heart
- Buffed Nefushtan
- Buffed Siamese Dream
- Increased the damage bonus obtained from Waltz for Debby
- Increased the amount of mana cost reduction provided by Seventh Heaven
- Increased the Block value obtained from Ares’ Feather
- Increased the Evasion value obtained from Thales’ Feather
- Fixed a bug where the enhancement button did not disappear even after reaching the enhancement cap on Skill Books
- Fixed an issue where window positions were reset when abandoning a run or clearing the library
- Fixed a bug where Möbius Ring Mods increased upon restarting the game
- Fixed an issue where Strength, Intelligence, and Dexterity values of a Unique Book were displayed as negative when enhancing it
- Fixed a bug where Ink could be obtained again when re-entering a Treasure Room
- Fixed cases where the effects of Byakuya and Herbarius were not applied when Estra was activated