You don't need to change the license at all in order to do this. Withholding source code while providing an executable would violate some free licenses, but all

You don't need to change the license at all in order to do this. Withholding source code while providing an executable would violate some free licenses, but all free licenses allow withholding both an executable and corresponding source code simultaneously. An action like this could split the community, but I don't think it would be very visible to people contributing to the software, since I imagine the source code would still be available on a public git repository with the same license, for the purpose of development. Do people complain about Krita being on Steam [1]? It's not exactly the same situation, since Krita never was on Steam before, but do you think the situation would be so different if Krita had been free-to-download on Steam and then they changed it? [1] https://store.steampowered.com/app/280680/Krita/ https://store.steampowered.com/app/280680/Krita/