I use Google Wifi at home and the app allows you to monitor network usage from specific devices over a specific time period - so its usually pretty obvious when your Telsa is up to something. When I checked this morning, it showed that last night around midnight I received 6GB of data and then around 3-4AM I received another 5-6GB of data. Sure enough, this morning I had 2018.14.2 waiting for me. When I plugged my car in after getting home from work today, the nav update prompt displayed as well (so that explains the dual downloads last night).
Seems like a solid release after 2018.14, not getting the charge connector error anymore (although that problem mysteriously resolved itself two days prior to the update), and all the nav websites are loading fine. Just ran some fast.com and dslreports.com tests and I'm still consistently getting 9-13 Mbps (9Mbps was with only 1 bar of LTE).