Over the last few days, Microsoft has finally started the rollout of its Lumia Denim update for Windows Phone 8.1 devices. First this happened in China, then followed by Europe and India. And now the new software is reaching the US, but only if your Lumia smartphone was bought from Verizon.
Interestingly, this means that the aforementioned Verizon-branded handsets will skip the Lumia Cyan update altogether (which they haven't received), and go straight to Denim.
The Lumia Denim update for Verizon comes with Consumer VPN for better security, Live Folders, Cortana, many upgrades for the Camera app, and there are probably some bug fixes in there too.