The Xiaomi Mi A2 has received its monthly update, this time called V11.0.15.0.QDIMIXM. The new update brings the October 2020 set of security patches to the Android One handset, along with a few bug fixes. V11.0.15.0.QDIMIXM is rolling out now as an OTA.
https://www.notebookcheck.net/The-Xiaomi-Mi-A2-receives-a-new-update-bringing-the-October-security-patch-and-bug-fixes.499135.0.html