WhatsApp today has updated its Terms of Service and Privacy Policy for the first time in four years, to reflect changes made in the app since that time. Perhaps the most important changes regard information sharing with Facebook and the 'Facebook family of companies,' and updates concerning WhatsApp Calling, which launched over a year ago now.

The changes regarding Facebook mean that some information on a WhatsApp account can be shared with Facebook to help improve the company's products and services. This should allow for better spam fighting and abuse, as well as seeing "better friend recommendations and more relevant ads on Facebook."

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