Nokia may have launched new Windows Phone 8.1 smartphones, but it didn't forget about its old ones. The company will roll out a Lumia Cyan update to existing hardware.

Microsoft's brand new Windows Phone 8.1 operating system comes with some highly-anticipated features and neat functionality. While new hardware will rock the new OS out of the box, Nokia has announced that it will roll out the upcoming Windows Phone 8.1 update, known as Lumia Cyan, to all of its Lumia handsets.

More specifically, Nokia will upgrade the software of each and every device in its Lumia lineup, from the low-end Nokia Lumia 520 to the top-notch Lumia 1520. By the end of the year, every Nokia Lumia handset should get a taste of the new OS and enjoy all of the great new features and functionality Windows Phone 8.1 has to offer.

"As well as the hardware announcements, Nokia has also confirmed that Windows Phone 8.1 will be available for all Lumia Windows 8 smartphones as an over-the-air update starting this summer," Nokia announced in a company blog post.

Windows Phone 8.1 will add a bevy of new features, including improved Live Tiles with a three-column display for devices with a bigger screen, as well as a faster way to connect and type with the Word Flow keyboard. Moreover, the update will also bring the long-awaited notifications center called Action Center. Another much-touted feature and one of the new OS's main attractions is Microsoft's new digital assistant, Cortana, which is the company's answer to Apple's Siri and Android's Google Now.

Nokia further points out that the Windows Phone 8.1 enterprise pack will turn existing Lumia handsets into better business devices for extra productivity.

"The entire Lumia range with Windows Phone 8 will get an over-the-air update called Lumia Cyan, which will combine Windows Phone 8.1 and brand-new Lumia features into one update package. This includes enhancements to the camera roll and Creative Studio, as well as a new and improved Nokia Storyteller app, for sharing stories as a video slideshow on social networks."

Nokia said only that it will start rolling out the Lumia Cyan update this summer to existing Windows Phone 8 devices, but it has yet to provide a more specific timeframe. We'll keep you up to date as soon as the rollout begins.