Well, it seems that Nokia still hasn’t forgotten the veterans. An update for the E72 has been rolled out. Apparently, this update is rolled out OTA as well as through the Nokia Suite.
Though no official changelog is released as of now, but an update for a device this old came as a welcome surprise from Nokia.
While a firmware update is always recommended, you should back up all the data before attempting to update the Software. Updating is a risky thing, and an incorrect update might as well result in a bricked phone. So only update if you know what you are doing..!!