Emoticon on keyboard support and Android version I am wondering since what version Android emoticon have been added?
The answer depends on a variety of things, most importantly whether the vendor or manufacturer uses the Google keyboard or one of their own. Some apps, including Facebook and most manufacturer/vendor Messaging apps, have their own built-in emoticon support.

The default keyboard for Lollipop (5.0) on the AT&amp;T Samsung Galaxy S5 has built-in emoticon support. If memory serves, Kitkat (4.4.2) did not.