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Add a warning against carelessly changing the profile version number

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Try and prevent the situation of https://github.com/NixOS/nix/issues/10109 to happen again in the future
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Théophane Hufschmitt 2024-03-05 08:07:58 +01:00 • committed by GitHub
parent e164b39ee9
commit 7161ef14a2
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src/nix/profile.cc
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@ -222,6 +222,8 @@ struct ProfileManifest
es[name] = obj;
}
nlohmann::json json;
// Only upgrade with great care as changing it can break fresh installs
// like in https://github.com/NixOS/nix/issues/10109
json["version"] = 3;
json["elements"] = es;
return json;