It brings the August 2019 security patch. It has the software version EMUI 18.104.22.1688 and the size of this update is around 4GB.
This update is rolling out in batches. The EMUI versions and update size may vary depending on the market and models.
If you want to check for the update manually you can do this by following the instruction below:
Go to Settings > System > Software update > Check for Updates. If an update is available, it’ll ask if you want to download it.