Developer Digital Extremes took to the PlayStation Blog today to announce the latest Warframe update is now out on PlayStation 4.  Titled 'Sanctuary', the update brings a new Warframe, game mode, quests, and game tweaks.  It also includes a new area Sanctuary:

"Overseen by Cephalon Simaris, the Sanctuary is place where Tenno can work together for a common goal. Track down rare targets in missions and add them to the Sanctuary’s database using the Synthesis Scanner, unlocking new lore. Earn standing with Simaris and practice future Mastery tests or pit battle strategies against enemies in the Codex."

You can check out the full post on the PlayStation Blog.