Street Fighter X Tekken. The highlights include infinite combo fixes for Kazuya, Xiaoyu, Pac-Man and Kuro (so no more of this). The last update, which went live earlier this week, added new gems to the in-game store.
Capcom-Unity has the full list of changes. Other fixes include changes to some damage properties and frame data for a bunch of fighters, including Ogre, Juri, Rufus, Zangief and more.