The 221218 build was an iterative update that refined support for these new games. During this period, the software was rapidly evolving to:

This version marked a shift to .NET 8 for its runtime (updated from .NET 7), requiring a 64-bit Windows operating system and the corresponding .NET Desktop Runtime.

PKHeX is an open-source save editor for the mainline Pokémon games, spanning from the Nintendo DS era (Diamond/Pearl) all the way to the Nintendo Switch (Scarlet/Violet). Unlike cheating devices that inject codes into live RAM, PKHeX works directly with the save file's raw data structure. It allows users to:

It is designed strictly for official retail save files; using it on fan-made ROM hacks often leads to errors or file corruption. Key Features of Version 221218 Generation 9 Support: Initial save editing for Batch Editor Updates: