For a change as large in scope as it turned out to be, Google’s roll-out of its latest algorithm went by very quietly. Although the announcement was made a day before Google’s 15th anniversary, the actual release happened at least a month before. Nicknamed Hummingbird, the latest update of Google Search is designed to handle more complex queries and affects about 90% of searches worldwide.

Amit Singhal, Google’s senior VP, called it the culmination of 15 years of work, citing it as the result of

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