The final Delrina-branded version of WinFax was WinFax PRO 7.0, which shipped in late 1995, the subsequent version 8.0 being a Symantec product. There was no intervening version 5.0 or 6.0, and the jump to version 7.0 was purely a marketing decision, based on keeping up with the suite of products in Microsoft Office which were then at the same number. It also reflected the development effort required to develop the first full 32-bit application version, designed to work with the Windows 95 operating system, which set it apart from its competition at the time.