Update: Rift 1.5 Hotfix 4

GENERAL

 * Fixed an issue causing characters to lose health when mounting.
 * Fixed a character sheet bug where unequipped items would continue to be displayed and would overlap equipped items.
 * PvP: You can no longer enter a Chronicle or Warfront while in combat.
 * Planar Attunement Rift opener abilities now always open a Rift of the correct type.
 * Corrected the Genesis Pylon effect so it once again has a cooldown.
 * Zone event colossi, now with even greater hit point scaling.
 * Tuned down the drop of epic currency from zone events with sub-bosses.
 * Fixed a rare case where an ex-LFG tool group would enter a Master mode and receive a replacement group member popup.
 * You can once again see experience rewards granted from LFG instance completions in the LFG window.
 * Fixed a bug where the LFG UI would occasionally not show any queues to join.

CHRONICLES

 * Killing base population mobs in the Greenscale's Blight and Hammerknell Chronicles now causes you to be saved to the instance.
 * Sanctum: Ceremony of Attunement: You should no longer get occasionally stuck in combat in the courtyard area.
 * You can now auto-attack with the flower weapons from the Greenscale's Blight chronicle. FLOWER POWER.
 * Fixed another case in the Greenscale chronicle where Lord Greenscale could get stuck at 1% and not reset properly. Also reduced the length of his flight phase to 20 seconds from 30.
 * Meridian: Ceremony of Attunement: Reduced the likelihood of getting stuck after your progress is saved when fighting Kain.

WARFRONT ACCOLADES

 * Changes to the following solo accolades: Killing Spree, Rampage, Unstoppable, Savior, Juggernaut, Invincible, Defender, Double Threat, Sabotage, Massacre.
 * Reduced the experience, Favor, and Prestige granted to the player earning the accolade by 10%.
 * Teammates now earn roughly 30% of the experience, Favor, and Prestige when others on their team earn these solo accolades.

DUNGEONS AND RAIDS

 * Many dungeon terrain shortcuts have been fixed. Please bug report any that are still an issue!
 * Instances can once again only be reset 5 times per hour. This was broken with 1.5.
 * Darkening Deeps [Master]: Villizar: Break Free type abilities now work against Flame Javelin's stun.
 * Darkening Deeps [Master]: Tegenar: Break Free type abilities no longer work for Cocoon.
 * Hammerknell: Akylios: The death region on the dock should properly deactivate on Akylios' death.
 * Hammerknell: Inquisitor Garau's minions no longer grant experience.

SOULS

 * Recasting buffs like Rogue poisons will now replace the existing buff rather than a random one.
 * Dominator: Fixed an issue where Charged Shield [Rank 5] and Mass Charged Shield [Rank 4] would double-proc when triggered.
 * Marksman: Vampiric Munitions: Fixed a bug where the healing siphon caused the Marksman to break stealth when the debuffed target was healed.
 * Nightblade: Fell Blades: Fixed a bug where the healing siphon caused the Nightblade to break stealth when the debuffed target was healed.
 * Pyromancer: Burning Bonds: Fixed an issue with the Unbreakable Bonds ability where Burning Bonds would only root a PvP target for 4 seconds instead of 8, even if the target was not under the effect of diminishing returns.

CLIENT

 * Client optimizations!
 * The game now tries to work around a bug in AMD Llano CPUs (AMD models A4-3XXX, A6-3XXX and A8-3XXX) that was causing frequent crashes. If you use one of these processors you should notice improved client stability.

=Hotfix 4.1=
 * Fixed a crash issue introduced in this morning’s update.
 * Stillmoor: The drop rate for Inscribed Sourcestones during the zone event “Raising Kain” has been reduced. In addition, the hit points on sub-bosses during the event have been evened out and the hit points of the final boss have been increased significantly.
 * Hammerknell: Runeburst Umbrals’ debuff “Death’s Hand” will now be removed upon leaving the instance.
 * AddOn API: Children of mask elements now function properly when generated at runtime.

Source
http://forums.riftgame.com/official-rift-news/patch-notes/265397-rift-1-5-hotfix-4-10-6-11-8am-pdt-na-7-10-1am-gmt-eu.html