This version is notable for being one of the last before major structural changes in later updates, and it remains widely used for its stability with Gen 1–8 games (up to Pokémon Scarlet/Violet’s early support).
Some modding toolchains (like specific versions of N Saturn or switch-toolbox) behave differently with newer PKHeX builds. Certain ROM hacking projects were built around the 22.12.18 API.
| Game | Full Support? | Notes | |--------------------------|---------------|-----------------------------------------------------------------------| | Scarlet & Violet (1.0.1) | ✅ Yes | Saves up to Dec 2022. Does NOT support DLC (Teal Mask/Indigo Disk). | | Legends: Arceus | ✅ Yes | Fully stable. Alpha and shiny editing intact. | | Brilliant Diamond/Shining Pearl | ✅ Yes | Underground and Ramanas Park working. | | Sword/Shield | ✅ Yes | Crown Tundra and Isle of Armor compatible. | | Let’s Go Pikachu/Eevee | ✅ Yes | No changes from earlier builds. | | Sun/Moon (3DS) | ✅ Yes | Still works, but 3DS support was mature by 2022. |
Because PKHeX is open-source and frequently updated, you won’t find 22.12.18 on the official GitHub releases page anymore (newer versions supersede it). However, archivists and dedicated communities preserve legacy builds. Here’s how to obtain it safely:
Click File → Export SAV → Save as.... Overwrite the original save file. Then use your save manager to restore the edited save back to your console or emulator.
PKHeX build 22.12.18 represents a crucial period in the tool's history where it was bridging the gap between Generation 8 and the newly released Generation 9. While it was a stable release for its time, modern users should seek the latest version to ensure compatibility with current game patches.
PKHeX 22.12.18: The Latest Update for Pokémon Game Enthusiasts
PKHeX, a popular tool for Pokémon game enthusiasts, has received a significant update with version 22.12.18. This update brings a range of exciting features, improvements, and bug fixes that enhance the overall user experience. In this article, we'll dive into the details of what's new in PKHeX 22.12.18 and why it's a must-have for Pokémon fans.
What is PKHeX?
PKHeX is a free, open-source tool designed for Pokémon games. It allows users to edit, save, and manage Pokémon data, including their stats, moves, abilities, and more. The software supports various Pokémon games, including the main series games, Pokémon Go, and other spin-offs. PKHeX is widely used by Pokémon trainers, breeders, and enthusiasts to create and manage their Pokémon teams, optimize their stats, and even create custom Pokémon.
What's new in PKHeX 22.12.18?
The latest update, version 22.12.18, brings several notable changes and improvements to PKHeX. Some of the key features and fixes include:
Key Features of PKHeX 22.12.18
Here are some of the key features you can expect from PKHeX 22.12.18:
Why Use PKHeX 22.12.18?
PKHeX 22.12.18 is an essential tool for Pokémon game enthusiasts, offering a range of benefits, including:
Conclusion
PKHeX 22.12.18 is a significant update that enhances the overall user experience for Pokémon game enthusiasts. With its improved compatibility, new features, and bug fixes, this update is a must-have for anyone interested in Pokémon games. Whether you're a casual player or a competitive breeder, PKHeX 22.12.18 is an essential tool that can help you get the most out of your Pokémon experience.
Download PKHeX 22.12.18
If you're interested in trying out PKHeX 22.12.18, you can download the latest version from the official PKHeX website. The software is free, open-source, and available for Windows, macOS, and Linux.
PKHeX version 22.12.18 was a significant update to the popular open-source Pokémon save file editor, primarily focused on refining support for Pokémon Scarlet and Violet. Released by developer Kaphotics, this version addressed critical stability issues and data structures introduced in the early days of the Gen 9 competitive meta. 🛠️ Core Features of 22.12.18
This specific build solidified the editor's transition into the Paldea region era. Key features included:
Scarlet & Violet Save Support: Enhanced compatibility for .main files from the first Gen 9 titles.
Legality Checker Updates: Updated internal logic to verify if Pokémon from Paldea were "legal" (obtainable via normal gameplay).
Tera Type Editing: Full support for modifying the Tera Type of any Pokémon, a mechanic central to Gen 9.
Technical Fixes: Resolved bugs related to movepool validation and item quantities in the Paldea bag. 💡 What is PKHeX?
PKHeX is a "Save Editing" tool. It does not modify the game code itself but rather the save data produced by the game. Key Capabilities:
Create Pokémon from scratch: Generate "legal" Pokémon for competitive testing without hours of breeding.
Modify existing stats: Change IVs (Individual Values), EVs (Effort Values), Natures, and Abilities.
Inventory Management: Add rare items like Master Balls, Ability Patches, or rare Tera Shards.
Event Injection: Access mystery gift Pokémon that are no longer available through official distributions. ⚠️ Requirements and Safety
Using PKHeX version 22.12.18 (or any version) requires specific hardware and software setups:
Custom Firmware (CFW): You must have a modified Nintendo Switch (e.g., running Atmosphère) to export your save file.
Checkpoint or JKSV: These are homebrew apps used on the Switch to "dump" (export) the .main save file to an SD card.
PC Access: PKHeX is a Windows-based application (though it can run on macOS/Linux via Wine or Mono).
Important Note on Bans: While PKHeX itself is safe, using "illegal" Pokémon (those with impossible moves, stats, or shiny locks) in online battles or trades can result in a ban from Nintendo's online services. 📥 How to Use (High-Level)
Export: Use JKSV on your Switch to back up your Scarlet/Violet save.
Open: Transfer the SD card to your PC and open the save file in PKHeX. pkhex 22.12.18
Edit: Right-click a slot in your PC box to "View" a Pokémon, make changes, and click "Set." Save: Export the modified save back to your SD card. Import: Use JKSV on the Switch to "Restore" the save file. If you're looking to get started with this version,
Where to find the official download archive for older versions?
The difference between this version and the latest 2024 releases?
PKHeX version was a major release for the PKHeX save editor , specifically focused on refining support for Pokémon Scarlet & Violet shortly after their launch. Key Features & Improvements Raid & Outbreak Management
: This update introduced the ability to view, edit, and calculate Raids and Mass Outbreaks for Pokémon Scarlet & Violet Legality Refinements
: It addressed several early "false positives" and "false negatives" for Gen 9 Pokémon. For instance, it fixed issues where certain Pokémon (like Iron Treads in ) were showing as legal despite version restrictions. Encounter Database
: Updated the database to include better modeling for overworld interactables and wild encounters that match the game's RNG patterns. Encryption Constant Fixes
: Added specific logic for species that evolve based on internal encryption values, such as Maushold (Family of 3) and Dudunsparce (Three-Segment form). Community Consensus Reviewers from the Project Pokémon Forums
generally consider this version a vital bridge for early Gen 9 editing. Reliability
: The software is praised for its ability to handle nearly all aspects of save files, from Pokémon data to inventory and Wonder Cards Technical Edge
: It is noted that PKHeX's legality checks are often more stringent and accurate than those used by official apps like Pokémon HOME User Caution
: While powerful, users at the time reported occasional save corruption if files were restored incorrectly via tools like Auto-Legality mods for this specific version or see the latest Scarlet & Violet
PKHeX new update legality errors (contribution page) - Page 16
PKHeX 22.12.18 release is a significant version of the core-series Pokémon save editor, primarily known for being one of the first versions to provide comprehensive support for Pokémon Scarlet and Violet after their initial launch. Project Pokemon Forums Technical Significance & Stability Legacy Performance:
While newer versions of PKHeX (such as 23.12.18 and beyond) require .NET 7 or .NET 8
, the 22.12.18 version is frequently cited by users as being "snappier" on certain systems, particularly for those running it through containers or older Windows environments. Core Functionality: This version includes the PKHeX.Core
library, which serves as the backbone for various third-party tools like raid calculators and mass outbreak editors for the Paldea region. Transition Period: It was released during a critical window when the Home 3.0.0
update was imminent. Consequently, while it can generate "legal" Pokémon, it lacks some of the later history-tracking checks introduced to prevent issues when transferring to Pokémon Home. Project Pokemon Forums Key Features & Save Editing Capabilities Save File Manipulation:
Like most versions, it can read and write various file types including Batch Editor: This version is notable for being one of
Users utilize this version's Batch Editor to modify multiple Pokémon at once, such as setting specific origin games or mass-modifying IVs/EVs using specific syntax like for random PIDs or for shiny status. Legality Checking:
It provides a basic legality checker for Scarlet and Violet encounters, though users of this specific version should expect some "false negatives" for complex encounters that were updated in later patches. Project Pokemon Forums Practical Use Cases PKHeX - Save Editing - Project Pokemon Forums 12 Apr 2026 —
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
The 22.12.18 release introduced several enhancements to the core Pokémon save editor: Gen 9 Scarlet & Violet Improvements:
Wild Encounter Detection: Added "wandering/crossover" logic to more accurately detect where wild Pokémon were caught.
Mark Logic: Introduced logic for weather, time, and personality Marks for wild encounters to ensure legality.
Egg Move Cleanup: Removed inaccessible egg moves that were incorrectly flagged or available.
Legality Refinement: General "quirks" in Gen 9 legality were ironed out, making the green-check verification more reliable for Paldean Pokémon.
7-Star Raid Support: A specialized record editor for 7-Star Raids was added, allowing users to manage their participation data for these limited-time events.
Gen 3 Save Handling: Fixed an issue where GameCube memory cards with multiple save files were not reading correctly.
Interface Adjustments: Added labels to the "Form Argument" numeric controls in the PKM Editor for better clarity. What is PKHeX?
PKHeX is the premier open-source save file editor for the Pokémon core-series games. Developed by kwsch (Kaphotics), it allows users to view, edit, and manipulate save data across all generations, from the original Game Boy titles to the latest Switch releases. Core Capabilities:
Pokémon Editing: Modify species, nature, IVs, EVs, moves, and held items.
Legality Checking: An internal engine verifies if a Pokémon is "legal" (could theoretically exist in-game without hacks).
Trainer & Inventory Management: Edit trainer names, IDs (TID/SID), money, and item quantities.
Mystery Gift Importing: Import Wonder Cards (.wc9, .wc8, etc.) directly into save files. How to Use PKHeX 22.12.18
To use this specific version (or any modern version), follow these general steps: Idiot proof guide to pkhex - Saves - Project Pokemon Forums
The December 18 build fully integrated the Gen 9 data structure. You could:
The primary focus of the December 2022 builds was stabilizing the editor for Generation 9. How to Download and Use PKHeX 22