In my case the Alix 2D13 board based system which I'm currently using is working fine. Unfortunately I can't support for its further development. However it is a shame to throw away a working equipment because of this. I undestand security updates or new developments are not to be expected. In my use case (I'm not providing any external services neither I'm using any VPN or else) I have so far not noticed any. In fact I would like to know what issues this known deprecated release can really cause. The point was that the 2.3.4_1 release did not show any available updates before I turned the source branch as mentioned. Thats true but would someone mind rather using a 2.3.5_2 instead of a 2.3.4_1? It is not considered secure, you should upgrade. You will not receive any security updates fixes if you're running 2.3.5. Just to be completely clear, the 2.3X branch is no longer updated at all.