After testing the feature with select users a few weeks ago, Twitter has officially announced that starting today searchable GIFs will be rolling out over the coming weeks to iOS, Android and twitter.com. The animated images will be searchable via keywords or by browsing categories from within the status-update window. Just click on the new GIF button.
The GIF search feature is powered via partnerships with Giphy and Riffsy. Both companies host animated images and have their own GIF-sharing apps. While Twitter hasn't announced any deals with content makers, Riffsy has partnered with Sony pictures, 20th Century Fox, Disney and others so don't be too surprised to see GIFs from upcoming movies and TV shows within the new feature.
A nice bonus of the new feature is that direct messages now support GIFS. You can finally share awesome baby goats via DM.