I cannot update from 12.0 and 12.1.
I have a coarray program that uses CRITICAL.
ifort -c -coarray -free -fPIC -warn all cgca_m2stat.f90
cgca_m2stat.f90(107): remark #7712: This variable has not been used. [CG_$1_mtx]
At runtime the program seems to hang at CRITICAL, but not always. With 8 or 27 images it seems to work, and with 64 images it hangs.