Pkhex 22.12.18 [2021]
: Ironed out "legality quirks" for Scarlet and Violet , making the detection of whether a Pokémon is "legal" (appears legitimate) much more reliable.
If you are a retro modder, running an older emulator build, or working on a Gen 9 ROM hack that predates The Teal Mask, PKHeX 22.12.18 is a reliable time capsule. For everyone else—especially those playing Scarlet/Violet with DLC or planning to use Pokémon HOME—you absolutely must upgrade to a 2024 or 2025 build. pkhex 22.12.18