Android distribution numbers for this month are out. A quick look at the pie chart reveals that Oreo has nearly doubled its share, capturing 0.5% of the market (up from 0.3% last month). Nougat's share is also up, standing at 23.3%, compared to 20.6% in November. All other major flavors have witnessed a decline - Marshmallow down to 29.7% from 30.9%; Lollipop 26.3%, compared to 27.2%; and KitKat down to 13.4% from 13.8% last month. As for the remaining, the combined shared now stands at 6.8%, down from 7.2% last month. Source
Source: https://www.gsmarena.com/latest_android_distribution_numbers_are_out__both_oreo_and_nougat_grow-news-28676.php