VERSION_KEY
if (key.size == sizeof(VERSION_KEY) &&
memcmp(key.data, VERSION_KEY, sizeof(VERSION_KEY)) == 0)
key.data = (void*)&VERSION_KEY;
key.size = sizeof(VERSION_KEY);
static char VERSION_KEY[] = "\0VERSION";
key.data = (void*)&VERSION_KEY;
key.size = sizeof(VERSION_KEY);