Deft Explorer is excellent. Removing exhaustion on a short rest is pretty overpowered in my opinion, and I wish you could take Canny more than once if you wanted to, but I think both of those are likely to be addressed in the next step of development. Favored Foe is almost exactly what I want out of a Favored Enemy type feature, except letting you maintain it without Concentration is too dippable. I would make it require Concentration and leave out the Wis mod uses /short rest limitation. Just let the ranger cast it as a 5th level spell at-will. The new fighting style, spells, and spell versatility are fine, I guess, if you like spellcasting Rangers. Not my thing, personally. Primal Awareness is... Better than Primeval Awareness, I guess, but giving the ranger more spells really isn’t the fix I’d have hoped for. I didn’t have any problem with Hide in Plain Sight, and I really don’t like Fade Away, but it’s good to have the option there for people who want an alternative to HiPS. The new beast companion options totally fix the Beastmaster. It’s exactly what the subclass needed.