Lord Zir Diablo 4
Screenshot by Prima Games.

Diablo 4 1.2.3 Patch Notes, Listed (December 5 Update)

Stake that undead bat right through his withered heart

Dungeons, Glyphs, and bugs oh my! Here’s everything you can expect to see on December 5 in Diablo 4.

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Diablo 4: December 5 Update, Full Patch Notes Listed

It’s the moment we’ve all been grinding for. The pinnacle dungeon, Abattoir of Zir, is finally releasing! And glyphs are finally being buffed, meaning that Nightmare Dungeon grinding won’t be as much of a slog. So, let’s jump right in.


  • Starting on December 5, battle legions of Zir’s minions and race against time in a new endgame pinnacle dungeon, Abattoir of Zir.
  • A full list of possible affixes can now be previewed in the Enchantment menu using the new View Possible Affixes button.
  • Earned Glyph experience from most Nightmare Tiers was increased.
    • Tiers 1-17: No Change.
    • By Tiers 30: From 66 to 79.
    • By Tier 50: From 106 to 139.
    • By Tier 75: From 156 to 239.
    • By Tier 100: From 206 to 339.

Developer’s Note: After reviewing gameplay data and player feedback, we recognized that completing higher Nightmare Tiers was not as rewarding as we initially hoped for, with many players stopping their journey after reaching Tier 50. The experience increase to Glyphs at higher Tiers was made with the intent of incentivizing players to push their builds, making their arrival at Tier 100 feel that much more fulfilling. We will monitor how this change in experience pans out for players and encourage you to provide us with any feedback you have around this system.

  • Introduced further support for NVIDIA Reflex technology. Visit the in-game settings to enable this feature.



  • Fixed an issue where the Screen Reader didn’t announce the required pacts for Vampiric Powers.
  • Fixed an issue that made the Screen Reader malfunction on the Steam Deck.


  • Fixed an issue where the Mechanical Box wouldn’t respawn if the player was killed by the boss in the Bastion of Faith.
  • Fixed an issue in the Fallen Temple dungeon where the objective to destroy the Idol of the Fallen Temple could not be completed properly if the Idol was destroyed instantly.
  • Fixed an issue where the debuff effects in the Fallen Temple could be avoided when leaving and re-entering the Dungeon.
  • Fixed an issue where enemies from the Sole Survivor event could spawn behind locked doors in the Hallowed Ossuary, blocking event mastery completion.
  • Fixed an issue where Nightmare Dungeons wouldn’t properly reset after all revives were exhausted when playing local co-op.
  • Fixed an issue where enemies spawned by Animus-carrying monsters with the Summoner affix unexpectedly carried Animus.
  • Fixed an issue where bonus Elemental Damage affixes of Nightmare Dungeons scaled their damage too low or too high for their respective Tier.


  • Fixed an issue where some attacks made by Echo of Lilith would not properly trigger if the player in the Party that started the encounter died.
  • Fixed an issue where the first Death from Above cast by Echo of Lilith had irregular timing and didn’t display an incoming projectile indicator.
  • Fixed an issue where Frostburn and Mother’s Embrace could drop as Sacred and not Ancestral from Tormented Echo of Varshan in World Tier IV.
  • Fixed an issue where Gems could still drop from some sources, such as Avarice’s chest or Whisper Caches, instead of Gem Fragments.
  • Fixed an issue where Rabies cast by Werewolf companions from the Of the Alpha legendary aspect could miss.
  • Fixed an issue where Druids could continuously run into a wall if Trample was used to move towards a nearby wall.
  • Fixed an issue where Treasure Goblins would sometimes become invincible and run away if the player mounted or unmounted near them. (Treasure Goblins have had enough of your bullying, wanderer.)

Season of Blood

  • Fixed an issue where Blood Harvesters could quickly disappear after spawning.
  • Fixed an issue where the Norvaic enemy could spawn repeatedly in certain co-op situations.
  • Fixed an issue where Seeds of Hatred extracted by being Hatred’s Chosen did not count towards a Season Journey objective’s progress.
  • Fixed an issue which made Potent Blood dropped from a Blood Well inaccessible.

Developer’s Note: A previous Hotfix allowed players to walk through Blood Wells to access Potent Blood. This change reverts the ability to walk through Blood Wells, but in exchange, Potent Blood will no longer spawn in the middle of Blood Wells so it can be easily picked up.

  • Fixed an issue where Duriel wouldn’t spawn when the player re-entered the boss arena after respawning.

User Interface and User Experience

  • Fixed an issue where map overlays for Helltide and Blood Harvest wouldn’t display properly when entering a region covered by fog of war.
  • Fixed an issue where the tooltip displayed while hovering over certain items could blink periodically.
  • Fixed an issue where the text describing how to unlock Mounts was inaccurate for players who skipped the Campaign.

Developer’s Note: If they choose to play through the Campaign, players that haven’t yet unlocked Mounts must complete the Donan’s Favor quest to unlock them. If the campaign is skipped, you must reach Level 25 before unlocking Mounts. The tooltip previously mentioned Quest completion only, which is irrelevant when skipping the Campaign.

  • Fixed an issue where navigating to the Season Journey from a Seasonal Aspect wouldn’t open the correct chapter.
  • Navigating the Seasonal Stash with a controller will now be more consistent.


  • Fixed an issue where visual effects on armor would remain fully visible while using Concealment. (Lilith sees all, foolish wanderer.)
  • Various visual, performance, and stability improvements.

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Daphne Fama
A Staff Writer at Prima Games since 2022, Daphne Fama spends an inordinate amount playing games of all stripes but has a soft spot for horror, FPS, and RPGs. When she’s not gaming, she’s an author and member of the Horror Writers Association with a debut novel coming out in 2025. In a previous life, she was an attorney but found she preferred fiction to contracts and forms