topic Re: Access to Legacy Fortran Compilers: 2020.4 in Intel® Fortran Compiler

Access to Legacy Fortran Compilers: 2020.4

jimmyvdw — Tue, 19 Aug 2025 12:10:10 GMT

Hey,

I have a legacy code that I am trying to build and install with the Fortran compiler, but it requires a legacy compiler (version 2020.4.304), but I cannot seem to find it in the available Intel Compiler libraries. I was wondering if there was any method I could use to install the compiler version that I require. Any help would be greatly appreciated.

Jimmy

Re: Access to Legacy Fortran Compilers: 2020.4

Arjen_Markus — Tue, 19 Aug 2025 12:14:11 GMT

Why do you need this "legacy" version? 2020.4 is not all that old, so it cannot be because of obscure constructs in your source code. What makes it necessary to use exactly this version? It will be much easier later on if you can use the current compiler.

Re: Access to Legacy Fortran Compilers: 2020.4

jimmyvdw — Tue, 19 Aug 2025 12:19:23 GMT

I acknowledge that is likely to not make a difference in terms of the source code, I am merely asking out of convenience. The intention is to install the compiler and develop the code locally, and then offload it commercially to a machine that strictly uses the 2020.4 compiler. The use of the 2020.4 compiler in development would reduce any danger of incompatibility to the machine it will be offloaded to.

Re: Access to Legacy Fortran Compilers: 2020.4

Steve_Lionel — Wed, 20 Aug 2025 00:37:57 GMT

Free users don't have access to older versions. Users with paid support have access to some older versions.

Re: Access to Legacy Fortran Compilers: 2020.4

Ron_Green — Wed, 20 Aug 2025 21:24:16 GMT

https://community.intel.com/t5/Intel-Fortran-Compiler/Older-Compiler-Download-Information/m-p/1372725

Re: Access to Legacy Fortran Compilers: 2020.4

Ron_Green — Wed, 20 Aug 2025 21:28:05 GMT

Use the latest compiler to build the application .exe file (or .dll file(s) )

Give the user the latest Fortran Runtime Library redistribution libraries kit and have them install it:
from this page, scroll or nav down to the Fortran Runtime Libraries kit

Then give them your .exe file and et viola!