This is a stable build which means it will be rolling out to all users of the mentioned devices. After updating to the latest update, it will bump the version number to EMUI 10.1.0.103 from EMUI 10.0.1.127 or 10.0.1.132 In some regions, the company hasn’t released the EMUI 10 update to Honor 9X Pro yet and now it looks like the company will be skipping the EMUI 10 update and directly release the EMUI 10.1 As per the earlier reports, the update is currently being rolled in China via OTA (Over-the-air). Just like any other update, it has been rolled out in a phased manner, so it may take up to a few days for the update to be available on all handsets.
Manual OTA Update Guide
Source 1, 2