This is the latest installment in an ongoing series of monthly updates on the major social media platforms. The goal of each update is to provide a summary of key recent developments and what they mean for marketers.

For this update, we look at Instagram's test to remove likes, the launch of Facebook Pay, Twitter's new feature that allows users to hide replies and Snapchat's new longer video ad format, as well as an update on political advertising. It also includes a preview of our latest social network user forecast, which will be discussed in detail in our upcoming social network users report collection, publishing on December 12.