Too Long; Didn't Read
On April 17, 2018 version 2 of the <a href="https://dialogflow.com/" target="_blank">Dialogflow</a> API <a href="https://blog.dialogflow.com/post/v2-and-enterprise-edition-generally-available/" target="_blank">was made generally available</a>. It marked the end of a beta phase that started back in November 2017.