# Project Zomboid 42.20.3 STABLE Hotfix Released

- Product: Project Zomboid (https://whatsnew.fyi/product/project-zomboid)
- Vendor: The Indie Stone
- Date: 2026-08-17
- Original notes: https://store.steampowered.com/news/app/108600/view/715661584899246561
- Permalink: https://whatsnew.fyi/product/project-zomboid/releases/2026-08-17-42.20.3-stable-hotfix-released

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Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **changed** — Improved server player limit handling, including support for up to 254 players and administrator access when servers are full
- **fixed** — Fixed an issue that would cause the client to hang on 'Loading Map' forever
- **fixed** — Addressed multiple causes of a memory leak that could lead to performance degradation and crashes over time
- **changed** — Implemented several memory optimisations
- **fixed** — Reduced instances of black and gray boxes appearing when travelling quickly through the world
- **fixed** — Fixed issues that could cause errors during lighting updates

While this update should not break saves, if you encounter any bugs please ensure you can replicate them on a fresh save with no mods installed before reporting them to our team (https://theindiestone.com/forums/forum/85-bug-reports/).

##### MP

- Improved server player limit handling, including support for up to 254 players and administrator access when servers are full

- Fixed an issue that would cause the client to hang on "Loading Map" forever

##### FIXES

- Addressed multiple causes of a memory leak that could lead to performance degradation and crashes over time

- If you continue to encounter an out of memory error in a new save, please submit a bug report with your logs and profiler video from debug so the team can investigate

- Implemented several memory optimisations

- Reduced instances of black and gray boxes appearing when travelling quickly through the world

- Additional causes of this issue are still being investigated and will be addressed in a future update

- Fixed issues that could cause errors during lighting updates.

_As always, discussions regarding this update can be found pinned to the Project Zomboid Discussions Forums (https://steamcommunity.com/app/108600/discussions/0/84032037661541571/)_.