Jolla is unfortunately out of the hardware business but that makes the company more focused on software that is constantly being upgraded. Their Sailfish OS is now in its fourth version which is bringing numerous improvements and support for some latest Sony devices that can run this OS.
Jolla released a new #SailfishOS 18.104.22.168 update which users can download over the air globally. This is a supplemental release named Suomenlinna. The update contains the fix for the recently found vulnerability in the polkit package and avoids some potential problems when installing the upcoming 4.4.0 release.
If you are using the Sailfish OS device capable of running the Sailfish 4 version of the OS, do update it to get the next larger version.