Hi @demetrio where your previous messages in this thread? Not sure why they would be removed.
As for your questions:
1. The software versions are built on each other, so there is no possibility to upgrade directly to a higher version by skipping one.
2. Longevity has always been one of our targets, so we aim to make improvements to Fairphone 2 - like the software update, and have spare parts secured so people can use their device for longer.
3. What ‘issues’ are you referring to? For now, our focus is on bringing the update to the phone. As for a new model, that is in conceptual phase, so there is not much information we can share on it.