In that sense there wasn’t, though – Unix sees a colon instead.
I’d argue until HFS+ is replaced.
Some official deprecation would have been helpful…
File systems doesn’t determine the file path notations per se, the OS does however. Since the file system and OS are not in one piece you say the same about Mac OS X. Mac OS X used to use two file API’s: Carbon, which uses the old Mac OS notation and BSD which uses the default unix notation.
no argument here…