The Pokémon Infinite Fusion Discord is the primary source for all versions, including legacy builds found in the archives.
The original project thread on PokéCommunity often contains links to current and past versions. pokemon infinite fusion 4.9.0.3 download
To ensure your computer's safety and get a working version of the game, you must use verified community channels. There is for the game; any site claiming to be "official" may contain malware. The Pokémon Infinite Fusion Discord is the primary