The Nokia Lumia 610 is reported to be receiving a software update soon. This unfortunately isn't the Windows Phone 7.8 update but is reported to bring improved system performance, camera performance and usability.The update will roll out at different times in different regions and you should receive a notification on your handset when the update is available for your device. You can then receive the update by connecting your handset to your computer and running the Zune software.
Owners who purchased their Nokia Lumia 610 may already have the new features pre-installed. However if you do receive the update, please share your experience with the device and let us know if you feel the performance boost or come across the new features.
source – Nokia