Every old Android version starts to lose its market share with time. Some versions take a lot of time but some start to do so quickly.
Android Lollipop was released in 2014 and it kept dominating the market with it’s increasing market share. It was the first Android version with Material design and people loved it. Android Marshmallow, the latest version of Android was released in October last year and it is continuously capturing the market share as it is the latest version. The Marshmallow is now installed on 7.5% Android devices. The Lollipop, on the other hand, has started to lose it’s market share for the first time. It was at 35.8% last month and this month, with a slight fall down, it has reached the market share of 35.6%.
This is, of course, the start of market share lose for Android Lollipop. KitKat is at 2nd place with 32.5 % share which was 33.4% last month. So every Android version is losing the market share except for the latest, Marshmallow. Ice Cream Sandwich is at 2% share and the old Gingerbread is still at 2.2% share. The Froyo is still at the same spot since a few months now. It is at the last position with 0.1% market share.
Android does not show the market share of devices which are installed on less than 0.1% devices.