In an industry fixated on rapid growth, any slowdown in user acquisition or monetization sounds alarms. And Twitter, whether it likes it or not, has been sounding a lot of them lately. After a few years of stagnant monthly active user growth and disappointing the market, Twitter has been on an upswing thus far in 2017 -- beating investor projections by generating more money and adding more new users than initially anticipated. In the face of a negative narrative, the company has been quick to take action and focused predominantly on changes geared toward the user -- and it seems to be working. Over the last year, Twitter has made a number of changes, small and big, to drive user engagement and improve the overall onboarding and experience of the platform. But we know how tough it can be to keep up with these types of updates, which is why we put together a list of the more notable features and changes below. Marketers, take note. 7 New Twitter Features 1) The End of Vine ... and...