The update for both Devices mentions just the new security patch for May 2019 in the change log. The size on Nokia 8 Sirocco is around 84MB, while the update size for Nokia 2 running Android Oreo 8.1 is around 61MB. To check if the update is available head to the update section in settings and hit refresh.
Do leave a comment down below if the update is available for your device. 🙂