On Saturday, November 11th, the AdWords system will be unavailable from approximately 10 a.m. to 2 p.m. PST due to system maintenance. While you won't be able to log into your account during this time, your campaigns will continue to run as usual. We apologize for any inconvenience.
AWA
will you be fixing the bugs in the new QS?
This is routine maintenance, Green_Grass, which occurs roughly every month - as was noted a couple of days ago by AdSenseAdvisor, who wrote in forum89:
Heads up -- we'll be performing our monthly system maintenance on Saturday, Nov. 11, at 10:00am PDT...
I decided to wait a few days to post, until I was certain of the estimated time range involved - while still giving a lot of notice.
AWA