Had a guildie point this out to me. It seems that blizzard has done some minor stat changes to the socketed Tier 5 items as of the last patch.

For example:

http://www.thottbot.com/i30150

Vestments of the Avatar
Binds when picked up
Chest Cloth
202 Armor
+18 Stamina
+21 Intellect
+31 Spirit
Yellow Socket
Yellow Socket
Blue Socket
Socket Bonus: 2 mana per 5 sec.
Durability 100 / 100
Classes: Priest
Requires Level 70
Equip: Improves spell critical strike rating by 15 (0.7%@70).
Equip: Increases healing done by spells and effects by up to 88.
Set: Avatar Raiment (1/5)
Item Level 120

vs off of the Blizzard armor page:

https://www.worldofwarcraft.com/info/items/armorsets/

Vestments of the Avatar
Binds when picked up
Chest Cloth
202 Armor
+15 Stamina
+21 Intellect
+31 Spirit
Yellow Socket
Yellow Socket
Blue Socket
Socket Bonus: 2 mana per 5 sec.
Durability 100 / 100
Classes: Priest
Requires Level 70
Equip: Improves spell critical strike rating by 11.
Equip: Increases healing done by spells and effects by up to 88.
Set: Avatar Raiment (1/5)
Item Level 120

Change results in:

+3 Stamina
+4 Crit Rating.

Similar sets show a similar trend.

No, they made some small changes to socketed epic gear last patch or the one before it. Not to be confused with the "big" update.

The changes aren't live, compare the warrior chest to the upgraded one Tigole posted.

Those changes are the changes for socket changes from a minor patch a while ago and just the website has old numbers.

I "hope" these aren't the big changes but i had noticed this when i logged on after my friend pointed it out. Most of the Tier 5 sets got a small boost in some stats with the last patch. I figured id point that out. Change the title please to a more appropriate one if this is the case.

Nope, nothing changed.