I just went to my call logs records and double checked something.. In the past the Line calls, Whatsapp calls did not used to show up in the call logs history. In fact the call logs history was even shorter. Now it is longer and stores call logs from Line and Whatsapp as well. The ones not being stored at the moment for the time being are the ones from WeChat. So if you do not want those stored in the future you may want to skip the next few updates because it maybe in one of those updates and they most likely will not tell you about it.