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> So like USB2 becoming USB3, or Java 1.4 going to 5, or Thunderbird going from 3 straight to 5.

Or AngularJS 1.8 going to a complete fucking mess.

Haha. Or php 5.6 to 7

I was curious about this so I looked it up. Apparently there was a PHP 6, but it was scuttled and had some of it's features backported to PHP 5.3.