Xiaomi has been characterized as one of the companies that offers the most software support to its old terminals - and even more to the new ones - through OTA updates. This is demonstrated with the new firmware package that is being released for the Mi A1, a mid-range from mid-2017 that is about to celebrate two years of validity on the market.
This device is an Android One, so it does not present any customization by Xiaomi and its happy MIUI layer, and it has had the Android Pie operating system for several months. This OS is being renewed on the mobile with the latest available defensesThe latest security patch for it is already spreading through the air.
The new software update that adds the August security patch on the Xiaomi Mi A3 comes under the build number V10.0.12.0.PDHMIXM. It only weighs 67.13 MB, so this is a fairly light firmware that shouldn't take long to download. However, it comes loaded with various minor bug fixes and common system stability optimizations and other sections, so the benefits it brings are not only focused on the security department.
Remember that OTA updates usually take time to be distributed by all the models to which they have been assignedSo please be patient while you wait for the download notification on your respective Xiaomi Mi A1.
If you can't wait, you can try to force the update through the menu Configuration, but make sure you are connected to a stable Wi-Fi network and the battery level is at least 50% full, in order to avoid unwanted data packet consumption and any failure in the download process and installation that may arise.