Shortly after Microsoft hinted at a wider Lumia Denim rollout a few days ago, the latest update for Windows Phone 8.1 started hitting the Lumia 1320. A reader of ours from Portugal shared the great news showing a snap of his phone prompting to install the Lumia Denim update. Up until now, the Lumia 830, Lumia 930 and Lumia 1520 have received the update in Europe, but it's also available for the Lumia 520 and Lumia 525 in India. However, there's still a lot of ground for Microsoft to cover, as the The Lumia Denim update is compatible with these devices - Lumia 521, 526, 530, 530 Dual SIM, 535, 535 Dual SIM, 620, 625, 630, 630 Dual SIM, 635, 636, 638, 720, 720T, 730 Dual SIM, 735, 810, 820, 822,920T, 925, 925T, 928, 930, Icon and 1020. The company will shed more light on the upcoming Windows Phone 10 version as well as the anticipated Windows Phone 8.1 GDR2 update on January 21. Thanks for the tip, José...
Source: http://www.gsmarena.com/microsoft_lumia_1320_denim_update_rollout_begins-news-10820.php