#0 - April 14, 2009, 3:33 p.m.
Blizzard Post
As previously announced, all classes will have their talents reset when "Secrets of Ulduar" (patch 3.1) goes live and the dual talent specialisation feature will be available for purchase.

Unlike talents, we will not be wiping existing glyphs with this patch. So if you decide to purchase this additional talent spec, the glyphs you had equipped before the patch will be the glyphs that are linked to your primary spec and your new secondary spec will have no glyphs.

This is just a reminder to make sure the talents you select in your primary spec match up with the glyphs you already have there, to avoid any mix up between the talent trees and their associated glyphs.