Patched copies often have a small white sticker over the original barcode or a revised SKU ending in "-REV" or "-V2". On the back of the box, look for:
Enter the —an official, free PDF from FryxGames that fixes not just one card, but the entire opening meta. terraforming mars prelude print patched
If you encounter a new error in a 2024 or 2025 printing, report it to Stronghold Games. The community-driven errata system is what led to this patch in the first place. Patched copies often have a small white sticker