http://googleappsupdates.blogspot.com/2012/09/supporting-modern-browsers-internet.html
Internet Explorer 10 launches on 10/26/2012, and as a result, we will discontinue support for Internet Explorer 8 shortly afterwards, on 11/15/2012. After this date users accessing Google Apps services using Internet Explorer 8 will see a message recommending that they upgrade their browser.Editions included:
Google Apps, Google Apps for Business, Education and Government