Android Oreo launched back in August but still hasn't been adopted by too many smartphone companies. Currently, only 0.3% of the devices that visited the Google Play Store in early November were running Android 8.0 Oreo operating system.
The situation won't be better soon since HMD and Huawei are the ones that will offer Android 8.0 Oreo updates for some of its smartphones by the end of the year. Things might get better at the beginning of 2018, as more companies will start pushing Oreo updates to devices already available on the market.
However, the Nougat adoption has increased from 17.8% to 20.6%. Android 6.0 Marshmallow though has seen a downfall from October (32%), it continues to hold the largest percentage at 30.9%. Lollipop is down from 27.7% to 27.2%, which is the second largest after Marshmallow.
KitKat has also decreased to 13.8% from 14.5% in October. On the other hand, Jellybean has also decreased from 6.6% to 6.2%. Gingerbread and Ice cream sandwich are at 0.5%. All the data is collected from all the devices that visited the Google Play Store during a 7-day period ending on November 9, 2017, according to Google.
Source : Google