Twitter has had a big week: the network redesigned its #Discover tab, rolled out the new and improved ‘Retweet with Comment’ function, allowed users to upload slow-motion iPhone videos, and even had to debunk some takeover rumours. On top of that, some Twitter users have been seeing evidence of new UX design tests on the layout of the news feed and search. Making sense of several announcements in a row is a big task for busy marketers. To help you figure out how the latest changes may affect your Twitter strategy in the coming months, here is everything you need to know about Twitter updates in the first quarter of 2015.