They've been supporting iOS 15 with security updates for devices that can't update to iOS 16. Not sure how long they'll continue doing it but I imagine it'll be

They've been supporting iOS 15 with security updates for devices that can't update to iOS 16. Not sure how long they'll continue doing it but I imagine it'll be for a good while. Looks like they just released an update that fixes CVE-2023-41064 at least: https://support.apple.com/en-au/HT213913 https://support.apple.com/en-au/HT213913