Marea icon theme was updated to version 5.0. Halo icon theme was updated to version 1.9.1. Wechat was updated to version 2.6.2.31deepin0. Wechat for Enterprise was updated to version 2.4.16.1347deepin0, which fixed the issue that its icon may not display on the tray. libgtk2.0 was updated to version 2.53.4-4 with dbg packages added.