Yahoo announced last night that they had updated the index this past weekend, so keep an eye out for any changes that might occur. Additionally they have updated the way to contact them. Instead of relying on email, they have switched to a simple form for any feedback. According to them:
For feedback, we are moving away from the email address "ystfeedback at yahoo.com" to a simple form available at http://help.yahoo.com/search/feedback. Please write in and let us know what you think.
There is some limited discussion on the forums notably at Digitalpoint and WebmasterWorld. Most webmasters seem to be experiencing some positive changes in regards to rankings and increased traffic. So what is the best way to describe this update? Well, its seems "our site is bouncing back and forth" is the most common descriptive people are using to describe the change. So expect the update to bounce you back and forth a little and settle down later in the week.