Huawei is pushing a new software update for Huawei Nova 5, Nova 5i, and Nove 6 SE, the new software comes on EMUI 10 and bringing the December 2020 security patch for Nove 5 and 5i users while the Nove 6 SE users are receiving system optimization with EMUI 10.
The latest update comes on the EMUI version 10.1.0.96 for Nove 5, 10.0.0.130 Nova 5i, and EMUI 10.1.0.229 update comes on Nove 6 SE users.
Huawei Nove 6 SE new EMUI 10 update fixes several bugs and integrates some camera fixes as well which improves the overall camera experience. However new update for Nova 5 / 5i improves device security, stability, and performance improvements.
Currently, the update is rolling out in few markets, You should be able to progressively receive the update over-the-air (OTA) on your phones via the HiCare app, or you can manually check for the update, go to System > Software update > Check for updates.