I've been using the m3 for around 6 months now and so far the stock rom is still on nougat 7.0 with may security update, which for my model, btv dl09 c100, dates back to 15 6 2017 according to firmware finder. I've searched for btv w09 c233 on firmware finder and it seems this variant has gotten updates monthly pretty much for a full year. Does anyone have a variant of this tablet that still gets updated? Are the updates I see for the w09 233 variant using newer security patches and bug fixes?