As we described on Monday, the IE8 in Windows 7 RC includes additional tab “hang” reporting functionality. This functionality relies on a timer threshold to determine when a tab might be unresponsive. This threshold was calibrated based on data from internal Microsoft users.
As we began to look at data coming in from real-world Win7 RC users, we noticed that some users are being prompted to recover from hung tabs more frequently than some would like. We stated on Monday that if the data suggests that too many users are being prompted too frequently that we would publish an update to resolve the issue.
Based on the data we’ve seen so far, today we are publishing an update that turns off the additional tab hang reporting in Win7.
The upside here is that we now have a wealth of data about the real issues that users encounter every day, and we are going to continue to work hard to address responsiveness issues up until and after Win7 RTM.
More information about this update can be found here.
P.S. For those of you waiting on the update to the Compatibility View list, it’s available today as well.
Thanks, The IE Team