Android Update Matrix
You might find quite many inaccuracies in this chart. First of all, for some smaller manufacturers (Tecno, ZTE, etc) we haven't got enough information to confirm their updates, plans, etc. Secondly, most manufacturers don't tell exactly how many updates their phones will get, so, for most models, the planned timeline is an educated guess - only those models that have specifically marked with end-of-life mark, we know for sure.
If you think you can help us out to get this grid better, by providing information about missing updates, known plans, etc please, contact us!