Ice Cream Sandwich (ICS) was an Android operating system version released in 2011. It was the fourth major release of the Android OS, following Donut, Eclair, and Froyo. ICS introduced several new features and improvements, including a new interface design with a blue and black color scheme, improved notifications, resizable widgets, and more.

Subsequent Android versions were released after ICS, including Jelly Bean, KitKat, Lollipop, Marshmallow, Nougat, Oreo, Pie, and the latest version, Android 11. Each new version of Android has built upon the features and improvements of the previous versions, adding new capabilities and enhancing performance.

While newer versions of Android have superseded ICS, some devices may still be running the older operating system due to compatibility or hardware limitations. However, newer versions of Android generally offer better security, performance, and support for the latest apps and features, so upgrading to a newer version is usually recommended if possible.