See http://www.wizards.com/dnd/files/UpdateDec2009.pdf.
Grasp of the Grave (Dragon) is fixed.
Pennant of Heaven's Armies is fixed.
Solar Enemy feat had duration clarified to end of next turn.
Careful Strike Ranger at-will has been improved.
It's annoying that there's no separate "just the new updates" document posted, since there are 73 pages (!) of errata.
Grasp of the Grave (Dragon) is fixed.
Pennant of Heaven's Armies is fixed.
Solar Enemy feat had duration clarified to end of next turn.
Careful Strike Ranger at-will has been improved.
It's annoying that there's no separate "just the new updates" document posted, since there are 73 pages (!) of errata.