'Each' operator modifier is now '@' instead of '~'. So e.g.

> count(10) @+ 10
[10, 11, 12, 13, 14, 15, 16, 17, 18, 19]

> 10 +@ count(10)
[10, 11, 12, 13, 14, 15, 16, 17, 18, 19]

>  count(10) @+@ count(10)
[[0, 1, 2, 3, 4, 5, 6, 7, 8, 9], [1, 2, 3, 4, 5, 6, 7, 8, 9, 10], ...]

> [[0, 1, 2], [3, 4, 5]] @| inc
[[1, 2, 3], [4, 5, 6]]

> [0, 1, 2] |@ [inc, dec]
[[1, 2, 3], [-1, 0, 1]]

> [[0, 1, 2], [3, 4, 5]] @|@ [inc, dec]
[[[1, 2, 3], [4, 5, 6]], [[-1, 0, 1], [2, 3, 4]]]