Microsoft has started rolling out Denim, its latest Windows Phone firmware for Lumia devices. Among the new features heading to Microsoft mobiles are an updated Lumia Camera and Cortana.
While newer devices like the just-announced sub-$100 Lumia 435 and Lumia 532 are shipping with Denim installed already, older devices should begin seeing the update become available soon, according to Microsoft.
Microsoft had hoped to release the update before the beginning of 2015 but said on its Lumia blog that Denim "has started rolling out to a limited number of devices in selected markets and will continue arriving in waves by device".
"A wider rollout of Lumia Denim to all Lumia smartphones running Windows Phone 8.1 is expected to begin this month following partner testing and approvals," it added.
Depending on the carrier, other phones that already have Denim include the Lumia 520, Lumia 535, Lumia 620, Lumia 625, Lumia 720, and Lumia 930.
Owners can check update information for their region here
, though Microsoft doesn't detail exactly when each device will get the update.