Jolla/Sailfish OS 4.0.1 Koli is now available

There are many reasons to choose Sailfish OS over other mobile operating systems, but at Jolla we never forget that privacy and control are things our customers care deeply about. That’s because we care deeply about them too, and that’s why we’ve introduced Firejail app sandboxing into Sailfish OS 4 Koli.

When you first run an application, the Firejail app sandbox will make clear which permissions an application needs in order to run. A Firejailed app is prevented from accessing any of the functionality not granted on the list. Why is that important? We know Jolla developers are trustworthy, but there’s always the possibility someone will release an app containing rogue code, or with an accidental vulnerability for an attacker to exploit. If this happens, it’s reassuring to know the app is confined to minimise any harm it can do.

Some users may be concerned that this increasing security and privacy may impact the control you have over your own device. Rest assured this is not the case. With developer mode activated you’re still free to execute apps outside the sandbox if you prefer. In contrast to other mobile operating systems we want all Sailfish OS users to have full control of their devices, while ensuring malicious hackers don’t.

In the latest release many of the Jolla apps are sandboxed by default, but we’re not yet applying this to third party apps. Sandboxing prevents the use of boosters and QML pre-compilation, with a performance penalty we’re working to avoid. Restricting its use initially to a selected set of apps will give us the chance to iron out some of these kinks before we activate it for third party apps in a future release.

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