Moofsalot says:
Can I use the revised ranger when I next level? From what I can tell it mostly affects the higher level abilities, but I could be wrong.
It actually affects basically every level, but if you want to update to the revised ranger, that would be fine with me. Favored Enemy, Natural Explorer, and Primeval Awareness all have rather large changes. The only things that wouldn't change for you are your level 4 Ability Score Increase and your Horde Breaker ability that you got from the Hunter path that you took.
Heck, you can update it now if you'd like. I much prefer it over the regular ranger.