• Reduce now returns an interface
• Add FlapMap which manipulates an iteratee (map, slice) and transforms it to to a flattened collection of another type
• Add support for map when using Get
• Add Set which sets value at a path of a struct
• Add DifferenceInt64, DifferenceInt32, DifferenceInt, DifferenceUInt, DifferenceUInt32, DifferenceUInt64
• Add Flatten which flattens a two-dimensional array.
• Add Prune which returns a copy of "in" that only contains fields in "paths"

Thank you @youyuanwu @vellotis @guyarb @nohponex @CengSin @samber @HarryWang29