Twitter has enhanced its mobile apps to let users send and receive photos via DMs (direct messages), as well as swipe back and forth between timelines.
On top of implementing a new tab in the navigation bar for more convenience when accessing DMs, now you can share and view photos via DM on your smartphone or on twitter.com. You can also swipe from your Home timeline to the Discover timeline to find trends, popular Tweets, and new accounts tailored for you, and then swipe to your Activity timeline to see Tweets and accounts that are popular among people you follow.
You can enjoy these new features, and more, on Twitter for iOS or Twitter for Android.
Source: Twitter Blog