There are some change in the pipes that should make the syntax for slicing lighter in OCaml 4.10 by eliminating the need of the outermost [| |] or [ ]. For inst

There are some change in the pipes that should make the syntax for slicing lighter in OCaml 4.10 by eliminating the need of the outermost [| |] or [ ]. For instance, let a = x.%{ [|2; 3; 4|] } x.%{ [|2; 3; 4|] } <- 111. let a = x.${ [[0;4]; [6;-1]; [-1;0]] } might be simplified to: let a = x.%{ 2; 3; 4 } x.%{ 2; 3; 4 } <- 111. let a = x.${ [0;4]; [6;-1]; [-1;0] } It is possible to go further with ppxs(OCaml version of macros), but at a greater readability cost.