guess you've all read this article which says
We can happily say that we have recently obtained a software license from all our major partners and license holders that allows us to modify the Fairphone 1 software and release new versions to our users.
Now that Fairphone has control over the Fairphone 1 source code, what’s next? First of all, we can say that we have no plans to stop supporting the Fairphone hardware. We will continue to apply security fixes as long as it is feasible for the years to come. We will also keep exploring ways to increase the longevity of the Fairphone 1. Possibilities include upgrading to a more recent Android version, although we would like to manage expectations here as this is still very much a longshot dependent on cooperation from license holders and our own resources.
A second path we are exploring is the possibility of replacing the Android software by alternative operating systems (Ubuntu OS/Firefox OS/Sailfish OS) in an effort to prolong the life of the device (as that software is more cost-effective to maintain). While we’re still in the exploratory phases along these tracks, we do hope it’s clear that we’re committed to supporting our Fairphone 1 owners in the future. Thanks for sticking with us on this path to improve our phone’s longevity.