Also sold as the Mi 8 Youth or the Mi 8X, the Mi 8 Lite has only received one OS upgrade so far. While there are already custom ROMs that can bring Android 10 to the device, Xiaomi has now posted an official Android 10 update for the device.
https://www.notebookcheck.net/Xiaomi-Mi-8-Lite-picks-up-an-unexpected-update.457451.0.html