It's a bit misleading of a conclusion to make, because most of those changes likely aren't non-compatible changes.
For instance, maybe a chip goes out of manufacturing, and they can no longer get it supplied, but a successor product from the same supplier meets all the same requirements.
Perhaps a bracket goes out of manufacture, but an almost identical bracket is sourced from a different supplier.
This would qualify as a hardware modification, but is a non-breaking change.
For instance, maybe a chip goes out of manufacturing, and they can no longer get it supplied, but a successor product from the same supplier meets all the same requirements.
Perhaps a bracket goes out of manufacture, but an almost identical bracket is sourced from a different supplier.
This would qualify as a hardware modification, but is a non-breaking change.