Since you may know this or not, HMD Global has already announced that starting from October 2019 onwards Nokia 3 will shift the OS cycle to Quarterly Security Patch means all models of Nokia 3 will get updates once in 3 months
As per this First Quarterly Security Patch rolled out on November 2019 with 1 October 2019 Patch Level
And Next update may expected to be rolled out between Jan/Feb 2019
Answers
Since you may know this or not, HMD Global has already announced that starting from October 2019 onwards Nokia 3 will shift the OS cycle to Quarterly Security Patch means all models of Nokia 3 will get updates once in 3 months
As per this First Quarterly Security Patch rolled out on November 2019 with 1 October 2019 Patch Level
And Next update may expected to be rolled out between Jan/Feb 2019