Hi @janggster with ref to the upgrade of device to Pie or Oreo I had set an aggressive timeline of March end for all the devices . Unfortunately as we started the upgrade testing we ran into trouble with some of the devices and the timelines had got pushed forward.
Surprisingly support for the S9 and S9+ has been dropped by LineageOS…maybe as their device maintainers moved on to other devices. This means we will have to get members of our porting team to help with the upgrade. This upgrade to Pie will definitely happen as the S9 and S9+ are on the list of refurbished phones we sell. What the time line would be is something I cannot comment as of now.