Nokia has confirmed once again that current Lumia 800 and Lumia 900 users won't get left behind when the company moves over to Windows Phone 8 later this year with the launch of the Lumia 920 and 820 models.

"The current Lumia range of smartphones will continue to be supported by Nokia with a new updated user interface, new features, apps and upgrades," says Nokia on the company blog, before detailing some of the features current customers will get without having to worry about updating their phones.

What's new in Windows Phone 7.8?

"Brand new, compelling updates are in the pipeline. Nokia City Lens, launched just last week to make exploring surroundings more intuitive, is already available in the Windows Phone Marketplace for Lumia 710, Lumia 800 and Lumia 900, as is Nokia Counters, to help you keep an eye on your phone usage."

What's new in Windows Phone 8?

The company has also confirmed that it will be bringing the Cinemagraph app and updates to Smart Group Shot to the existing Lumia devices. There will even be "some additional surprises to make photo shooting and sharing as easy as possible", Nokia teases. 

According to Nokia, is appears the above new features won't require people to update to Windows Phone 7.8.

Those who do, however, have been promised a range of other features as well. Features promised for Windows 7.8 include a new look and feel to the  Start screen, familiar from Windows Phone 8, giving it a whole new appearance from the moment you unlock your phone; a ringtone maker app to selected markets to create a personal ringtone; a Contact share app updated to support sharing over Bluetooth in addition to SMS and email; and Bluetooth file transfer to send media files via Bluetooth from your Lumia device to any other phone 

The rollout of these updates for the Lumia 610, Lumia 710, Lumia 800 and Lumia 900 smartphones will be phased and appearing over the coming months.