5.5 was the last version that MS actually cared about IIRC. 6 had a few meaningful additions and tweaks but it had become noticeable that MS wasn't prioritizing

5.5 was the last version that MS actually cared about IIRC. 6 had a few meaningful additions and tweaks but it had become noticeable that MS wasn't prioritizing development. And of course after 6 MS didn't care much at all until competition came along...