Wolfram: Print Version
Print WolframEngine Version
Print[ $Version ] (* 14.0.0 for Microsoft Windows (64-bit) (December 13, 2023) *)
Print[ $VersionNumber ] (* 14. *)
Print WolframScript Version
wolframscript.exe -version

Print[ $Version ] (* 14.0.0 for Microsoft Windows (64-bit) (December 13, 2023) *)
Print[ $VersionNumber ] (* 14. *)
wolframscript.exe -version