The July 2020 Android security patch is being rolled out to the Huawei Mate 20 and Mate 20 Pro smartphones running EMUI 10.1. Those units running EMUI 10.0 have the June 2020 security patch.
Emui 10.1 RSS
Huawei today announced which of its older devices are going to get the latest EMUI 10.1 update, and it also confirmed that those smartphones and tablets will get the update later this month.