Several weeks ago, we caught wind of Android 4.4.3 and some of the changes it could bring, consisting mostly of bug fixes, both big and small. At this point, according to several sources familiar with the matter, Android 4.4.3 has entered internal testing outside of the core Android team - a process otherwise known as dogfooding. The final release isn't expected to hit public devices for a number of weeks, so those of you expecting it any day now will have to wait just a bit longer.
Google has started the dogfooding process of testing the Android 4.0 "Ice Cream Sandwich" update for the Nexus S, according to one of Google employees Adel Saoud. Dogfooding is a practice of having company employees use products before releasing them to the public ("eat your own dog food" in this sense apparently originated in Microsoft back in 1988), thus weeding out bugs while the products are still revolving in a relatively contained environment.