The update includes a new quest line for both PC and console users that awards a brand-new frame, Titania: “Overwhelm your foes with swarms of razor-winged butterflies, distract opponents with shiny lures, and morph into a small but deadly flying fairy. This incredible shrinking Warframe packs a big punch!”
The Silver Grove update also overhauled the fusion system, made improvements to the Lunaro team sport, and added in a new glyph system. You can watch the Silver Grove trailer below!
Source: Press release, YouTube