Announcement Date: June 19, 2009
Effective Date: July 1, 2009

Vintage
Thirst for Knowledge is restricted

Crop Rotation is no longer restricted
Enlightened Tutor is no longer restricted
Entomb is no longer restricted
Grim Monolith is no longer restricted

To be blunt, I am not a Vintage player in the least, so perhaps one of my Vintage-minded readers could elaborate on what this does to Vintage deck design space? First glance says that Grim Monolith is the big deal here. No changes to Standard, Extended or Legacy to report.