There are changes to European data protection law coming into force on 25th May, and Google is making changes to Analytics to comply with that law. You need to decide whether or not that law will affect your business, and if so, take the necessary steps for compliance.
Who does the GDPR affect?
The GDPR not only applies to organisations located within the EU but it will also apply to organisations located outside of the EU if they offer goods or services to, or monitor the behaviour of, EU data subjects. It applies to all companies processing and holding the personal data of data subjects residing in the European Union, regardless of the company’s location.