Not just Nokia 5.1 Plus & Nokia 3.2 but Nokia 5 (2017) users are also receiving October 2020 security patch update. We don’t know if this is a mistake or something else but the update counts huge 1.73 GB size & HMD didn’t have mentioned any improvements or bug fixes. Here’s a screenshot we received from one of our reader (Thanks to Snehashis) :

If you’re using this device in India, we can confirm it’s available for your location. Users from other countries can check for the system manually in the settings of their phone.
Stay tuned for more interesting news updates 🙂