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The fact that the maximum tweet length doubled means that Twitter's external behavior did change

• pgwhalen 9y ago
  I think that's the parent's point: it's not "refactoring" if the external behavior changed. Though I generally agree with the down-voting of the comment as needlessly pedantic, given the common usage of the term.
  • chaoticmass 9y ago
    The common incorrect usage of the term is just one of my pet peeves. I couldn't help myself.
    • tranvu 9y ago
      Sometimes, you may have to refactor existing code to be able to add new features.