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The BG2 Fixpack is a WeiDU compilation of fixes for Baldur's Gate II. With the disappearance of Kevin Dorner and the cessation of activity of the Baldurdash fixpack for BG2, several modders form many modding communities began working on a new WeiDU fixpack to address the numerous bugs that have been identified since Baldurdash. This collaborative effort, including the work of modders from several different modding communities, has resulted in a fixpack that currently includes all of the fixes addressed by Baldurdash (including the Game Text Update) and several hundred new bugfixes. The project is ongoing, and we're working through a substantial list of bugs culled from various sites, the old Baldurdash forums, and our own research. Several new fixes have been added to the BETA Core Fixes component.

Relevant links:All of the documentation pages have been updated with new information for v4. Changelog:
  • Paws from Shapeshifting Can Not Be Dispelled was causing crashes on some systems when encountering iron or adamantine golems; the component has been withdrawn until a new fix is implemented
  • Dropped the Nishruus and Hakeashars Eating Non-Magical Items fix. In Throne of Bhaal, the opcodes responsible for this bug have been disabled with the official patch. In Shadows of Amn, the bug is unfixable. The component has been moved to the Super Happy Fun Lucky Modder Pack and renamed Clean Up Leftover Default(0) Headers as it does clean up a lot of extraneous junk from a number of item files.
  • Dropped the Yoshimo and Korgan Don't Recognize Gaelan's Changed Offer fix from BETA Core Fixes; after some discussion this was dropped over concerns this was a slippery slope fix and would be a gateway to dubious fixes
  • Fixed bug in the core fixes that was preventing installation on SoA-only games
  • Fixed bug with Miscellaneous Script Resource Reference Fixes; also updated documentation as some files were not listed as being modified
  • Dropped the Exploit to Keep Imported Items At Beginning of SoA fix, as it was generally causing more trouble with other mods than it was worth
  • Added extra safeguard to prevent Brus spawning for the Creatures Using Incorrect Script Names or Lacking Them Entirely fix
  • Joinable NPC Spellbook Fixes moved from the BETA Core Fixes to the Core Fixes and was grouped with the Edwin and Nalia Spell Slot Fixes, Joinable NPC Spellbook Fixes, and Joinable NPCs Have Empty Spellbooks fixes into Joinable NPC Spellbook Errors
  • Improved Invisibility Fixes was completely reworked as it was preventing legitimate re-casting of the spell. The new fix remains non-perfect but still a significant improvement over the patched game.
  • Strength Spell Stacks Exceptional Strength from BETA Core Fixes dropped as it was causing the spell to not act per its description; exploit is now fixed by adding Strength to the Many Spells Should Not Be Able To Stack With Themselves fix in Core Fixes
  • The post-patch scripts in the Player AI Scripting Errors fix were tightened up
  • Terrece Initiates Dialogue From Another Area fix expanded and renamed Terrece Spawn Errors
  • Fix for the good deva in the Devas Using Wrong Script, Spell Errors was reworked; WeiDU itself has a bug here that was worked around
  • Part of the Killer Mimic Issues fix in BETA Core Fixes was redundant and was dropped
  • Kensais Not Receiving Their Weapon Speed Bonuses in the BETA Core Fixes expanded to include monks and renamed Kensais and Monks Not Receiving Their Weapon Speed Bonuses
  • Fixed nasty bug with the Items and Spells Not Interacting Properly with Spell Immunities and Protections fix (specifically spells) that was patching the wrong fields
  • New Casting Time Fixes and <span class="fp_altered">Arcane Magic School Fixes</span> combine and deprecate the following fixes: Find Familiar Has Incorrect Casting Time; Nahal's Reckless Dweomer Has Incorrect Casting Time, Magic School; Protection From Acid Has Incorrect Casting Time, Shield Has Incorrect Magic School, Spell Casting Speed Fixes, Arcane Symbol Spells Have Incorrect Casting Speeds, and [i]Arcane HLA Spells Should Be Schoolless[/i]. These two also partially deprecate other fixes: Grease Fixes, Armor Fixes, Hold Animal Errors. Several spells have been added to both fixes.
  • Fixed bug with Deathblows Allowing Save fix
  • Miscellaneous changes and fixes to the Game Text Update
  • The following fixes were expanded/updated to fix more bugs:
    • Corrections to Item Usabilities
  • The following fixes were added to BETA Core Fixes:
    • Stronghold Errors and Exploits
    • Elven War Sages Sporadically Helping Party with Vampirism Cure
    • Firkraag Journal Entry Not Being Set
    • Townsfolk Flee From Wrong People
    • Wing Buffet Should Not Be Prevented to Spell Protections
    • Holy and Unholy Word Lack Deaf Icon
    • Arcane Spell Casting Animations Incorrect
    • Anomen in Wrong Group
  • The following fixes were moved from the BETA Core Fixes to the Core Fixes:
    • Cleric-Rangers Not Offered Temple Stronghold
    • NPCs Joining High-Level Parties in SoA Would Join At Minimum Level
    • Under- and Overcharged Items
    • Anomen Banter Fixes
    • Flydian Doesn't Disappear
    • Saerk's Estate Accessible
    • Belmin Gergas 'No Valid Links' Dialogue Fix
    • Slave Leader in Ust Natha 'No Valid Links' Dialogue Fix
    • Low-Reputation Parties Face NORH Paladins Too Often
    • Reedle Missing Variable Checks
    • Arnolius Using Wrong Variable Scope
    • Trademeet Militia Wizard 'No Valid Links' Dialogue Fix
    • Viekang in Trademeet Initiates Dialogue Twice
    • Invincible Bat in Bodhi's Lair
    • Guards Summoned Well After Containers Are Burgled
    • Extra Journal Entry for Illithid Doors
    • Ice Mephit in Opening Dungeon Missing Script
    • Madeen's Friend Has Wrong Script Assigned
    • Door in de'Arnise Keep is Offset From Actual Door
    • Imp Stuck In A Wall
    • Regular Door in Saradush Flagged as Secret
    • Expiring Items
    • Anomen Save Fix
    • Keldorn Save Fix
    • Valygar One Level Too Advanced
    • Yoshimo Has Too Many Thieving Points
    • Wong Fei's Ioun Stone Using Wrong Icon
    • Abazigal Hurts Himself With Dragon Transformation
    • Spectator Beholder's Geas Spell Lacks Sound
    • Fear Effect in Hell Trials Causes Spurious Magic Resistance Message
    • Cutscene Spell Allows Save
    • Stores With Duplicate Item Entries