*UPDATE* [2012-09-11 06:31PM UTC]
A sixth update for the Xbox LIVE Update Public Beta program has just been released. This update brings the Xbox 360 dashboard/kernel up to version 2.0.16167.0. As with the previous updates so far, backups under LT+ are still working fine on LIVE and offline. The same applies for xk3y, which also continues to work without issue both on and offline.
From c4evaspeaks.com