Many manufacturers are already switching to Android Oreo and vivo is the latest company to do so. The manufacturer announced the first wave of devices to receive the 8.0 version, consisting of 7 phones from the X series - vivo X20, vivo X20 Plus, vivo X9s, vivo Xplay6, vivo X9, vivo X9s Plus, vivo X9 Plus.
The updates will arrive in April 2018 and will come as a Funtouch OS upgrade. The company is expected to launch a beta program on its official forum, but is yet to reveal details. Once everything is cleared, Oreo will be pushed as an OTA update.