Honor has started rolling EMUI 10 for Honor 8X smartphone. Currently, Honor 8X is having EMUI 9.1. This update will bring the January 2020 security patch.
EMUI version 10.0.0.175
This new version also rolling as full EMUI 10 OTA in other countries.
HOW TO CHECK FOR THE SOFTWARE UPDATE
Open Settings, then tap on System, tap software update, click on check for updates, then tap Download and install.
Open HiCare app, tap on Services, tap on Update, click on Check for updates, then tap on Download and install.
SOURCE: Huawei Central