Sims Laundry List: Feb 3 Patch Improves Family Trees, Urges Mod Caution

A February 3 base game update will expand and improve family trees, genealogy and relationship data, a change that matters to players and mod creators who build systems around lineage. Electronic Arts posted a Sims "Laundry List" on January 27 outlining the work and offering guidance ahead of the patch.

The update is aimed at improving how relationship data is stored and displayed in the base game, which should make family trees more robust for long-running legacies and multi‑generation save files. For modders, those underlying data changes are especially important because tools and mods that read or write lineage could see compatibility issues once the update ships.

Electronic Arts explicitly warned that mods which touch lineage or genealogy may be affected. The studio recommended removing those mods from game folders before the February 3 update and only re‑adding them after mod authors confirm compatibility. That advice is practical and immediate: remove genealogy-affecting mods, back up saves, and test play in a clean environment to isolate problems.

The Laundry List also reaffirmed ongoing work on save file integrity and summarized a prioritized list of bug fixes and investigations. Continued attention to save corruption and stability has been a top community request, and the team highlighted that fixes are being tracked and triaged. In addition, a selection of top‑voted community issues is being investigated to inform future patches and hotfixes beyond the February 3 release.

For everyday players the immediate value is straightforward: if you run custom content or mods that interact with family trees, relationships, birthdays, adoptions or lineage tracking, remove them now and wait for explicit compatibility updates from mod creators. Back up legacy saves and consider running the game without mods on a test copy to confirm whether the new family tree changes affect your households. Mod creators will need to check how the updated relationship data maps to their systems and push updates before users reintroduce those mods.

The Laundry List serves as a roadmap and a warning: the February 3 update aims to improve core genealogy systems, but that work carries disruption risk for community-made tools. For now, protect your legacies, communicate with the authors of your mods, and watch for follow-up notes from Electronic Arts and modders confirming compatibility so you can bring your custom setups back online safely after the patch.