PETSc users, We've always been very conservative in PETSc to keep almost all our Fortran examples in a format that works with classic FORTRAN 77 constructs: fixed line format, (72 character limit) and no use of ; to separate operations on the same line, etc. Is it time to forgo these constructs and use more modern Fortran conventions in all our examples? Any feedback is appreciated Barry Note: it would continue to be possible to use PETSc in the FORTRAN 77 style, this is just a question about updating the examples.