• 2023 Q3 - Q4
Intel Fortran Compiler Classic (ifort)
ifort Deprecation Announced
Legacy Product Support (LPS)
Intel Fortran Compiler (ifx)
Production Quality
• 2024 Q1 - Q4
Intel Fortran Compiler Classic (ifort)
ifort Deprecation Announced
Legacy Product Support (LPS)
Intel Fortran Compiler (ifx)
Production Quality
• 2025 Q1 - Q4
Intel Fortran Compiler Classic (ifort)
ifort Removed from PSXE
Legacy Product Support (LPS)
Intel Fortran Compiler (ifx)
Production Quality
• 2026 Q1 - Q3
Intel Fortran Compiler Classic (ifort)
ifort Removed from IRC
Legacy Product Support (LPS)
Intel Fortran Compiler (ifx)
Production Quality
Use Recommendation/Notes
• Intel Fortran Compiler Classic (ifort)
Not recommended for new projects
Start migration now
ifort deprecated in Q4 ’23
ifort removed in Q4 ’24
ifort IRC download removed in Q4 ’25
CPU only support
No ifort platform perf. tuning after SPR
• Intel Fortran Compiler (ifx)
Use for all new projects
Migrate existing projects to use ifx
Fortran language parity and better performance achieved with 2023.0
Only ifx is optimized for new HW platforms
Only ifx provides GPU offload
ifx supports Linux, Win
No 32bit support
HW Support
• Intel Fortran Compiler Classic (ifort)
CPU: Intel Xeon, Core, Atom processors
• Intel Fortran Compiler (ifx)
CPU: Intel Xeon, Core, Atom processors
GPU: Intel Integrated and discrete GPUs
Additional Notes
• oneAPI 2024.0
ifx set in MS VS as default compiler