It appears that this is “Firmware Update Month”, as the Nokia E63 joins the Nokia N97, Nokia E71, and Nokia E66 in receiving a well deserved firmware update. Like the Nokia E71/E66 update, this new firmware adds internet based applications such as Ovi Contacts, Files on Ovi, and visual bookmarks to Facebook and Youtube. The update also provides improved stability and stability of the user interface.
This 108.9 MB update is available through Nokia Software Updater. According to The Symbian Blog, The update is currently not available for E63 NAM.
Based on your phone’s product code, you may not see an update available. This simply means that the update is currently not available for your region. To those who plan to update, it is a reminder to back up your devices before updating.

Source:
The Symbian Blog