- Season 04 Context: Update 1.39, released on July 06, 2023, served as a vital technical hotfix for the “Critical Terror” narrative cycle, resolving performance issues with the Septic Spreader and Corruptor boss encounters.
- Weapon Meta Refinement: This patch corrected significant client-side synchronization errors for the Plasma Burster Missiles and fixed visibility bugs affecting the Subata 120’s Neuro-Corrosive Toxic Catalyst.
- Archival Utility: For 2026 miners using the “Season Selection” menu, these notes document the specific shift from 13 to 15 plague challenges, which standardized the Scrip progression system for completionists.
For the veteran miners of Hoxxes IV, history is written in the soot and mineral dust of past expeditions. As Deep Rock Galactic remains a titan of the co-op genre in 2026, many players are diving back into the “Critical Terror” era via the Season Selection terminal. Understanding the technical foundation of that period requires a look back at Deep Rock Galactic Update 1.39 – Patch Notes on July 06, 2023. This wasn’t just a routine maintenance patch; it was the hotfix that stabilized the Infestation meta, ensuring that the Driller’s Subata and the Engineer’s Plasma Bursters functioned as intended during the height of the Lithophage outbreak.
The Legacy of Season 04: Critical Terror
Update 1.39, known internally during its 2023 rollout as Hotfix 4, focused heavily on the aesthetic and mechanical polish that Ghost Ship Games is known for. While the 2026 gameplay loop has evolved with far more complex weapon overclocks, the fixes implemented here—such as the optimization of Septic Spreader puddles—remain the baseline for the game’s current high-performance standards on modern hardware. Much like the Dying Light Update 1.51 meta analysis, looking at these archival notes reveals how developers pivot to address community feedback regarding “clipping” and “sound desync” in real-time.
Official Patch Notes (July 06, 2023)
The following changes were deployed across PC and console platforms to address critical bugs introduced during the early weeks of Season 04.
Enemy and Environment Adjustments
- Septic Spreader: Optimized the performance of acid puddles to prevent frame rate drops during high-intensity swarms.
- Corruptor (Harold): Fixed a bug where the boss music would persist indefinitely after the encounter ended.
- Worm Pods: Resolved an issue where Corruptor worm pods failed to spawn any actual worms.
- Liquid Morkite: Fixed Mission Control voice lines during Refinery missions when contagion spikes were present in the level.
Weapon and Equipment Fixes
The mid-2023 meta was heavily defined by the Subata 120 rework. This patch addressed a frustrating visual bug where Lootbugs and enemies affected by the Neuro-Corrosive Toxic Catalyst would vanish prematurely. Similar to the technical refinements seen in the ESO Update 1.020.002 on PS5, these stability fixes were essential for cross-platform parity.
Cosmetic and UI Improvements
- Fixed beard and armor clipping issues introduced in the previous patch cycle.
- Attempted a specific fix for the “Triple Bedazzled Beard” to reduce clipping with heavy dwarf armor.
- The Equipment Terminal now correctly updates weapon stats even when modifying a class that isn’t currently selected.
- Fixed an issue where sleeveless armor variants would only display the host’s customization settings in the caves.
Historical Scrip and Progression
One of the most notable changes in Update 1.39 was the adjustment to the “Plague Challenges.” Ghost Ship Games added two missing Scrip to the seasonal progression by increasing the challenge pool from 13 to 15. In the context of 2026, where the Scrip system has been streamlined, this archival note explains why older guides may list different challenge counts for the Season 04 Cosmetic Tree.
| Feature | Status in 2023 (Update 1.39) | 2026 Relevance |
|---|---|---|
| Scrip Challenges | Increased to 15 | Legacy Standard |
| Subata 120 | Toxic Catalyst Fix | Superseded by 2025 Rework |
| JettyBoot Arcade | MC/Bosco Highscore Nerf | Permanent Mini-game |
While the world of Hoxxes IV has changed—and we’ve seen more recent updates like the Marathon Update 1.025 setting new standards for live-service transparency—the 1.39 patch remains a classic example of “community-first” development. Ghost Ship Games even added a prompt in this version to follow their Steam page upon exiting, a nod to the growing community that would eventually carry the game through its massive 2025 expansion.
For players currently stuck on the “Critical Terror” Season Selection, ensure your game version is at least 1.39 or higher to avoid the persistent Corruptor music bug and to ensure you can claim every piece of loot in the cosmetic tree. As always: Rock and Stone!
Source: Official Deep Rock Galactic Patch Notes
