I've a 2015 that I picked up (used) a few months ago and just did my first oil change on. It seemed the ideal time to do the mod to the pan. I used a magnetic, hex head plug with a Dorman washer, sold for the R1, but it fit fine. Torqued to 20 lbft with a little thread sealant.
https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F311557082474