Microsft have began rolling out a new dashboard update on the Xbox 360 today, the new version number is 2.0.17148.0
So far no official information has been released about the dashboard update, although there does not appear to be any major changes to the dashboard so far, we will however update here when we have the official patch notes.
Those with flashed consoles using LT3.0 along with xKey are reporting no issues with updating to the latest dash, with no need for a re-flash:
A list of drives that have been updated is being compiled in the forums here, thanks to our members. If you have updated and are using LT3.0, please submit your drive type.
As always with any new dashboard update, if you are unsure about updating the best thing to do is wait!