It appeared first in F#. The 4.01 version is quite recent actually. F# was based on 3.xx, or maybe, even, 2.xx OCaml. https://docs.microsoft.com/en-us/archive

It appeared first in F#. The 4.01 version is quite recent actually. F# was based on 3.xx, or maybe, even, 2.xx OCaml. https://docs.microsoft.com/en-us/archive/blogs/dsyme/archeological-semiotics-the-birth-of-the-pipeline-symbol-1994 https://docs.microsoft.com/en-us/archive/blogs/dsyme/archeol...