Update: Rift 1.3 Hotfix 12

GENERAL

 * World Event Quest: Gathering Shadows: The error when targeting Shadespawn Infestations that should be in range is now resolved. The quest item also now dismounts you properly on use.
 * Raid Rift: The Drakith Hatchery: Modified this Rift to bring it more in line with the other Rift Raids.

COMBAT
In anticipation of Hammerknell level items entering the game we’ve adjusted certain Combat rating diminishing returns. These changes should only affect fully raid buffed characters in Hammerknell or better equipment.
 * Physical Crit, Spell Crit, and Block ratings have both soft and hard caps updated. These caps only affect the bonuses from your base rating and have no effect on percentage-based bonuses from abilities, buffs, and debuffs.
 * Physical Crit: Now soft caps at 45%, and the return per point of Physical Crit rating above 45% is reduced. Hard caps at 60%.
 * Spell Crit: Now soft caps at 45%, and the return per point of Spell Crit rating above 45% is reduced. Hard caps at 60%.
 * Block (Chance to Block): Now soft caps at 40%, and the return per point of Block chance rating after 40% is reduced. Hard caps at 60%.
 * Block (Amount Absorbed): Now soft caps at 50%, and the return per point of Block absorption rating after 50% is reduced. Hard caps at 65%.

Source
http://forums.riftgame.com/showthread.php?229525-RIFT-1.3-Hotfix-12-8-00am-PDT-7-20-11-NA-1-00am-GMT-21-7-11-EU