That is not exactly how it happened. 2.0 brought a new UI. 1.1.9 was a 2.0 Early Release. Regarding which one is more magical, 3.0 or 4.0... I don't remember Snow White being visited by the queen 4 times, or Cinderella having to do 4 tasks, or Slavic village boys turned heroes killing 4-headed dragons. 3 is definitely the magic number.