When trying to plant seeds in the new 0.1.4, the selection menu that pops up only shows food items, not the seeds. Thus, this makes planting anything impossible, in the newest version
EDIT: Did a bit more testing on this, and it seems that right after you load a save (and I would assume start a new game, I haven't tested that part though, but would make sense), you ARE able to select any item in your inventory when planting(thus including seeds), but as soon as you get into the feed dialog with any NPC, then you get locked out, and only able to select food items, for the rest of the session, untill you load a save game again (doesn't matter if you were locked out of planting at the time of saving or not). So I geuss there is a sort of work around, of saving and loading straight away each time you want to plant, but yeah certainly not working as intended there