Sims will no longer autonomously play in ponds. There's a version where Sims will go in the pond with naked feet (requires the WellnessGP) and another version where they will autonomously play in ponds but with naked feet only (also requires the WellnessGP).
The Hobby Mod adds 14 Reward Traits to the game, for children through to elders. Each of these traits are inspired by the Hobby Tracks from Sims 2 Freetime, plus a few new categories to fit The Sims 4: