Code Name Version Release Date
• No codename 1.0. 23-Sep-08
• Petit Four 1.1 9-Feb-09
• Cupcake 1.5 27-Apr-09
• Donut 1.6 15-Sep-09
• Eclair 2.0 – 2.1 26-Oct-09
• Froyo 2.2 – 2.2.3 20-May-10
• Gingerbread 2.3 – 2.3.7 6-Dec-10
• Honeycomb 3.0 – 3.2.6 22-Feb-11
• Ice Cream Sandwich 4.0 – 4.0.4 18-Oct-11
• Jelly Bean 4.1 – 4.3.1 9-Jul-12
• KitKat 4.4 – 4.4.4 31-Oct-13
• Lollipop 5.0 – 5.1.1 12-Nov-14
• Marshmallow 6.0-6.0.1 5-Oct-15
• Nougat 7.0 – 7.1.2 22-Aug-16
• Oreo 8.0 21-Aug-17
Source -Wikipedia