The company Lenovo on its support site posted a schedule for the release of operating system updates Android for their tablets to version Android 5.0 Lollipop.
According to the company, the update will be available over the air (OTA) and warns that this operation could lead to possible loss of personal data. Therefore, before updating the OS of your devices, in Lenovo it is advised to make a backup copy of user data. And we suggest that you familiarize yourself with this graph and the list of devices that are included in it: