The latest software package can be identified with firmware version 11.0.0.176 for both the devices and weighs just over 300MB in size. It fixes 2 critical, 26 high, and 77 medium levels of CVEs, better known as security vulnerabilities.  Devices:

Huawei P40 Pro Huawei Mate 30 Pro

Software version:

EMUI 11.0.0.176

Package Size:

315MB (Mate 30 Pro) 328MB (P40 Pro)

Changelog: [Security] Integrates security patch released in February 2021 for improved system security.

Steps to install the update

Via Settings App

Open Settings app Go to System & updates -> Software update  Then, click on Check for updates Download and install the update.

Via Support App

Open Support app Go to the Services tab Click Update Then, click on Check for updates Download and install the update.

[via 1,2]

Huawei P40 Pro and Mate 30 Pro on EMUI 11 receiving February 2021 security patch update - 88