https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93097
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> --- That would be incorrect, as OpenMP 5 is only partially supported, there are various OpenMP 5 features missing, some of them on the compiler side only, but others (e.g. the allocators) on the library side too. We can only claim OpenMP 5 support when everything is supported (hopefully in GCC 11).