It seems Google has started pushing Android 6.0 Marshmallow to Android One devices. As per some of the Reddit users, smartphone “Cherry Mobile G1” in Philippines has received Marshmallow as the latest Patch update. It is however not clear when other Android One devices can expect this as there is no known official schedule available.
Some time ago Google officially revealed Android 6.0 Marshmallow, their next generation of Android operating system. Android 6.0 brings lots of features, improvements and fixes over Android 5.0 Lollipop. You can read all about Android M, including new features and detailed changelog by clicking here.