Today, Intel released its oneAPI Toolkit. While there’s a lot in this related to “accelerator” programming, it includes the next version of the Intel Fortran compiler, which now (claims to) support all of Fortran 2018! Even better, it’s now free for everyone, if you don’t mind “community support”. Paid support is still available and if you currently have paid support for Parallel Studio XE, that carries over.
There are two Fortran compilers in this offering. The “Classic” compiler,
ifort, is the Fortran 2018 compiler and it works very well. Then there is
ifx, a new compiler with an LLVM-based backend. This one is still “beta” and is much shakier.
You will need to install the “Base Toolkit” and then the “HPC Toolkit” to get Fortran. Start at Intel® oneAPI Toolkits