Right now, I love Language, library, and compiler stability (moved from GHC 9.6 Migration guide) - #83 by angerman. There’s a big stone that has been blocking the ecosystem in a lot of ways, and we’ve finally gotten our fingers under it and let a little sunshine underneath. There’s still a lot of creepy crawlies to banish but we’re getting there!
Generally, what I love about Haskell is that it’s fun to maintain software written in it. I don’t think I’d still be a programmer if I hadn’t discovered it.