Nokia 3.2 and 4.2 receiving a September security patch and Nokia 8.1 a new build

Nokia 3.2, Nokia 4.2, and Nokia 8.1 are the first to open the September series of software updates. Nokia 3.2 and Nokia 4.2 are receiving a security update that is bringing the September patch. The update for Nokia 3.2 counts 14.20 MBs, while the update for Nokia 4.2 has 14.81MB.
Do check your devices and report back to the people and the world about it.

Nokia 8.1 users started reporting that a new Android Build has been released. The Build V4.31A is not that big, just 4.78 MB, and besides the September security patch, it is bringing the standard stuff, UI enhancements, and improvements to the system stability.
Do check if the update is available for your Nokia 8.1.

Thanks to all who tipped and sent screenshots, we appreciate the effort!