The updates are changes and improvements that Google is doing overtime, to improve the criteria that determine the relevance of a site and also avoid the so-called Black Hat SEO (SEO techniques that violate the policies and conditions of use of the search engine).

The Hummingbird update allowed Google to make more natural and efficient interpretations of the intention behind each search, forcing website owners to create better quality content

BY Best Interview Question ON 06 Oct 2019