Fortran 202X | 202X, Fortran 2018 | 2018, Fortran 2018 | 2018, Fortran 2008 | 2008, Fortran 2003 | 2003, Fortran 95 | 95, Fortran 90 | 90, Fortran 77 | 77), Fortran 66 | 66, J3, WG5-ISO. (navbar_fortran_standards)