While there have been complaints about how quickly LG and Samsung drop support for their former smartphones, Huawei may be treating to its older handsets differently. The company has now given fans hope that the Mate 9 and Mate 9 Pro will receive Android 10 courtesy of EMUI 10, which would be their third OS upgrade since they were unveiled in November 2016. Better still, they will retain Google Mobile Services functionality, too.
https://www.notebookcheck.net/Huawei-gives-fans-hope-that-the-Mate-9-and-Mate-9-Pro-will-receive-EMUI-10-and-Android-10.452987.0.html
That's why I'm a loyal Huawei customer! The company doesn't forget about people who bought their products some years back. Commendable approach. My Mate 9 pro is still doing great and I'm looking forward to receive this update.