The information must suffice to ensure that the continued functioning of the modified object code is in no case prevented or interfered with solely because modification has been made.
TRAINING CHESSBASE COM INSTALL
> “Installation Information” for a User Product means any methods, procedures, authorization keys, or other information required to install and execute modified versions of a covered work in that User Product from a modified version of its Corresponding Source. Last time this came up people pointed at the installation information clause Simply saying the program runs doesn’t mean you’ve distributed the weights anymore than it means your distributed the code.
The weights may be as object code not as source. > But this makes no sense the weights are distributed with every copy of Fat Fritz 2. But that’s different than being illegal, and we should worry about the precedents set here. I think it’s lame that ChessBase sold stockfish for $80. But GPLv3 doesn’t give you the ability to terminate a license arbitrarily it requires you meet some specific criteria, and it’s unclear that ChessBase meets it. Stockfish seems to be saying that they have grounds for lawsuit because they have terminated ChessBase’s license. Stockfish may be trying to say “you must open source any training code used to make the weights.” But this claim falls flat you could use this same argument to say that any GPLv3 codebase must be fully open source in order to sell it, including all DLLs used by the program. (Otherwise, how would the program run? It’s not cloud-based, as far as I can tell.) But this makes no sense the weights are distributed with every copy of Fat Fritz 2.
Stockfish argues that ChessBase isn’t compliant because they refuse to release the weights. Note that it’s legal to sell stockfish as long as you’re compliant with GPLv3.
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