No download is needed!
In this update, we have added faction-based inventory bankers.
You can use these bankers if you have a Neutral or Friendly relationship with a faction (yes, you can have standing with multiple factions to use multiple bankers).
Unfriendly <-> Neutral = 500
Neutral <-> Friendly = 1500
If you talk to a banker (NL) or right-click them (PC) and nothing happens or they don't respond back, you don't have enough faction points to use their banking services.
Please note: Don't kill a banker.... It will remove 100 points from the faction of the banker you kill.... Don't be mean to the hard-working bankers.