Hint for commenters: Since Fortran 90, it's spelled Fortran, not FORTRAN. By using the latter you signal that your experience on the topic is from 30 years ago.
Right. Sometimes old habits die hard and I use FORTRAN when I mean Fortran but I don't do it intentionally nor do I do it out of ignorance. (I note that as I type this into Firefox, its speller still wants to capitalize the word! As I've discovered so do many other editors and word-processors.)
In recent years I've adopted the following nomenclature and you'll note I've done so here in my earlier posts. That is to treat the name of each specific version as a proper name. As FORTRAN IV was originally called that including the Romanized numerals for the version number I use that out of respect for those who originally named it in the same way I'd always use say John and not john. Nowadays, when I refer to Fortran in its generic sense I use its new default name rather than its old acronym form.