My car is still under B2B warranty and also have the Premium Extended warranty by Ford. WHen I log into the website I am not offered an update to v3.8 The highest that I have is 3.5 and it says that I am current.
Welcome to the "club", Smirpuri! Just think of all those owners that are likely in the same boat but don't know there's a more current version that they are entitled to.
On April 21, 2016 it will be 6 months since I sent my VIN to the Ford rep on this site as requested supposedly so that Ford could troubleshoot / correct the issue of v3.8 not showing up. Still waiting. I do have v3.6 though (not v3.5 like you do).