Yesterday, the healing forums were flooded with complaints largely by Priests alleging that the new 3.0.8 version of the Paladin Glyph of Holy Light was completely overpowered and made Paladins into group healers, shoe-horning them into a niche recently left half-vacant by our Circle of Healing nerf. Such complainants will presumably be happy to hear that the glyph is being hotfixed, reducing the range from 20 yards to 8.
Ghostcrawler calls the glyph "vastly overpowered," and goes on in a later post to give a bit more information. Like most changes, this was not done in response to QQ; as it turns out, the glyph was just overpowered. He also states that [major] glyphs are meant to be "about on par with passive talents" in terms of their power, which is in line with what I've been observing (maybe a few percent increase in damage/healing/mitigation per glyph, for the good ones).
At any rate, sorry to my Holy Paladin friends; I guess this one was just too good to last. I'm still jealous of your everlasting mana.