I'll only talk about episodes officially released according to wiki.
I didn't even realize the season started until recently and binge watched most of it this weekend. I got to say I am really enjoying this new season, the humor seems more composed, the lessons mature but not overly serious among other things.
One episode that got to me in particular was Forever Filly. Although it was a simple episode about how different aged people weather it be a parent and son or an older and younger sibling see each other, what really got to me was the whole bit on Rarity's nostalgia and not wanting to let go. This really hit me hard; I often feel the same way concerning my dead father, who was really my only friend. I read old news articles, go to old places restaurants and places he used to bring me, all so I can feel what I once had; but in the end I'm left feeling empty.
It's easy to just say "move on" but that doesn't mean shit; You wouldn't just forget about those you care about. What needs to be said is that you need new things, new friends and the like. I feel this episode really showed that point.
and a quick note, I definitely absolutely POSITIVELY didn't shed a few tears watching this one. I'm a MAN.