i just started receiving the september 2017 security update on my nokia 5.
download update and more info here: http://nokiatips.com/2017/09/05/download-nokia-5-september-2017-ota-zip/
anyone else received it as well? this is faster than the google pixel and nexus phone updates by google! :d
Same! I hope Nokia releases the Oreo update before other OEMs!