PKHeX version 22.12.18, released on December 18, 2022, was a significant update for the Pokémon community, primarily focused on refining support for Pokémon Scarlet & Violet (Gen 9) shortly after their launch. This version addressed critical legality checks and added specific editors for the then-new Paldea region mechanics. Key Features and Updates in 22.12.18
PKHeX version 22.12.18 was a major release in the tool's history, primarily known for establishing the core foundation for Pokémon Scarlet & Violet (Gen 9) save editing. While subsequent versions have introduced more automation, this release remains a classic milestone for players transitioning into the Switch's second generation of mainline games. Core Capabilities pkhex 22.12.18
The version number 22.12.18 follows PKHeX’s standard date-based schema (YY.MM.DD). Thus, this build was compiled on December 18, 2022. Why is this date important? Because Pokémon Scarlet and Violet had launched just one month earlier, on November 18, 2022. The game was (and still is) massive, but its save structure was a radical departure from previous generations. PKHeX version 22
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Common Issues and Troubleshooting
"The save file is corrupted" error after editing
- Fix: Ensure you’re not mixing save types. For Switch games, PKHeX expects a
mainfile (usually 1-2 MB). For 3DS, it expects amainorsav. Renaming a.binfile to.savdoes not work.
- Pokémon games receive frequent updates (patches). If you play Scarlet/Violet today, using a save editor from December 2022 might result in errors or corrupted data because the game structure has changed with DLCs and patches.
- Recommendation: If you are just starting out, it is highly recommended to download the latest development build from the official GitHub repository rather than sticking to 22.12.18, as newer builds fix bugs and support newer game versions.
Conclusion
PKHeX 22.12.18 represents a perfect moment in time for Pokémon save editing—a stable, powerful, and user-friendly bridge between the Nintendo Switch’s early Gen 9 era and the modern modding scene. Whether you’re a veteran hex editor or a curious newcomer, this build offers the tools to explore the Pokémon games like never before. Common Issues and Troubleshooting "The save file is
6. Security, Integrity, and Detection Risks
- Edited Pokémon may be detectable by game servers or tournament organizers using checks comparing OT/TID/SID, met location, event flags, or impossible contest of metadata.
- Online detection: Nintendo’s online systems can flag discrepancies (e.g., impossible trades, banned move sets, illegal ribbons). Repeated use of modified data in online play risks bans.
- Transfer tools: using homebrew or unofficial transfer methods can risk console bans or bricking if instructions are not followed precisely.
- Malware/Trust: only download PKHeX from trusted sources (official repository); verify checksums and inspect binaries when possible.
