Google’s Security Patches are released monthly and depend on the hardware in your phone.
As these releases have specific hardware dependencies, we will need to ensure your phone is fully supported before we can test and release those to the operator. Once the quality has been assured, the Security Patch will be delivered to your phone. Due to this, the Security Patches are dependent upon your device model, operator and also your location.
As the Security Patches are designed to enhance security, we advise all our customers to install them as soon as convenient. More detailed info on the Security Patches for Nokia smartphones is available here.