Same as the Nokia 5, her bigger brother Nokia 6 also received a new Pie build, also her last and the October 2019 security patch.
The update for Nokia 6 (2017) brings Android 9 Pie build V6.19B and the already mentioned October 2019 security patch. The individual update for Nokia 6 is 173MB in size (the whole ota build is 1.7GB in size) and can be downloaded by going to Settings->System->System Updates.
With this update, Nokia 6 will now be getting security updates on a quarterly level, just like Nokia 3, Nokia 5 and Nokia 8, as was announced before.
Thanks Jinbrian for the tip. 🙂