...I've written about this problem before, and it's still a problem. Sure, it's a problem Google has pledged to address, by forming the Android Update Alliance back in May. Google announced it would work with manufacturers and carriers to deliver timelier updates on a standardized schedule, and to keep updating every device for at least 18 months after its creation. That seemed like good news, and a pretty straightforward acknowledgement that fragmentation was a serious problem, and one that was driving consumers batty.
As of August, progress was spotty, and abysmal at T-Mobile and Verizon, where AndroidAndMe found that only a fraction of phones with those carriers were running the latest version of Android..."
'via Blog this'