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Project Zomboid
Project Zomboid
IndieRPGSimulation
The Indie Stone · The Indie Stone·$24.99
Aug 17, 2026 · 1d ago

42.20.3 STABLE Hotfix Released

AI summary11h

Hotfix 42.20.3 STABLE improves server handling, memory stability, and rendering glitches, with general memory optimizations and lighting fixes.

Bug fixes3

  • Loading
    • Fixed an issue that could cause the client to hang on the 'Loading Map' screen.Fixed
    • No longer hangs during loading due to map loading issues.
  • Rendering / visualsFixed issues that could cause errors during lighting updates.

Other changes4

  • ServerImproved server player limit handling with support for up to 254 players and administrator access when servers are full.254 players
  • Memory managementAddressed multiple causes of memory leaks and implemented memory optimisations to reduce performance degradation and crashes over time.Reduced
  • Out of memory errorIf you encounter an out of memory error in a new save, submit a bug report with logs and a profiler video from debug.Investigate
  • Rendering / visualsReduced instances of black and gray boxes appearing when travelling quickly through the world.Reduced

subjects affected (5)

tap to see balance history

How did this patch land?
🔗
official notes
Project Zomboid · Aug 17, 2026

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Patch history

see all 31

  1. 42.20.2 STABLE Hotfix ReleasedAug 5, 2026 · 1w

    Hotfix 42.20.2 stabilizes text handling for percent signs, improves mod compatibility, and enhances FPS/memory debug output.

  2. 42.20.1 STABLE Hotfix ReleasedAug 5, 2026 · 1w

    Hotfix patch 42.20.1 STABLE addresses multiplayer performance, stability, and localization issues, plus minor technical improvements for mods and translation handling.

    +1
  3. 42.16.2 UNSTABLE Hotfix ReleasedApr 8, 2026 · 4mo

    Hotfix 42.16.2 focuses on improving gamepad controls, specifically fixing UI interactions, vehicle behavior, and aiming conflicts.

    +6
  4. 42.16.1 UNSTABLE Hotfix ReleasedApr 2, 2026 · 4mo

    A hotfix addressing server browser privacy, multiplayer connectivity crashes, and character creation exploits.

    1
  5. 42.15.2 UNSTABLE HOTFIX ReleasedMar 11, 2026 · 5mo

    Hotfix 42.15.2 addresses critical loading issues with usernames and fixes animal rope behavior.

    +1
  6. 42.15.1 UNSTABLE HOTFIX ReleasedMar 10, 2026 · 5mo

    Hotfix 42.15.1 addresses a critical game loading issue related to usernames.

  7. 42.14.1 BETA HOTFIX ReleasedFeb 18, 2026 · 6mo

    Hotfix 42.14.1 addresses various single-player and multiplayer bugs, including vehicle-zombie attraction and item interaction issues.

    +2
  8. 42.13.2 UNSTABLE HOTFIX ReleasedJan 19, 2026 · 7mo

    Hotfix 42.13.2 focuses on multiplayer stability, animal behavior fixes, and various quality-of-life corrections for building and crafting.

    +9

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