Good news for Galaxy A5 (2016) as the new firmware update has been rolled out via OTA and this update contains January security patch which is the latest one.The version number of this update is XXS3BQA6. This update will reach your region as the update is rolling out region to region.
As I already told you that this update has been already rolled out and will reach you region wise, in case you have rooted Galaxy A5 (2016) or you have unlocked the bootloader, then you may not receive the update. So either you can unroot your and lock your bootloader to get the update or you can manually download and install the update on your Galaxy A5 (2016).
For those who haven’t rooted their Galaxy A5 (2016) can check for the update by going to their Mobile’s Settings> About Phone> System Update and search for the update if the update is listed then go ahead, download and install it.
Keep in mind before updating the firmware make sure you have full charged or more than 50% of battery.The update size may be big so also make sure to connect with Wi-Fi as it is a better option.
This update will reach you soon, so you have to Keep patience.This XXS3QA6 update not only comes with January Security patch but also with some bug fixes and stability improvement. If you want to know the full changelog then you can yourself check by updating to this update.