New patches for Dead Island are due to go live on PlayStation Network (9th November) and Xbox Live (10th November).

Here’s a fix list for your reference:

Gameplay improvements
Level cap raised to 60
New blueprints for weapon mods added
Infected damage reduced
Infected no longer interrupt player attacks
A series of improvements to subsequent playthroughs implemented:
quest XP rewards  adjusted
XP rewards for challenges adjusted
in subsequent playthroughs XP is awarded for all quests completed in co-op
Purna’s ammo carrying capacity increased by 50%
Character state from a save game can now be loaded when using the Start from Chapter option
New balancing option added: enemy levels can now be adjusted independently for each co-op player
Players respawn with more health
Picklock skill level required to open a lock is now clearly indicated
Improved rewards in weapon crates
All weapon crates now contain rewards
Kick ability balanced, now requires stamina
Items can now be picked up instantly; this is reflected in adjusted animations

Fixes and interface improvements
Fix: players are no longer left without a weapon after dropping the equipped item and healing with a medkit.
Fix: equipped items no longer swap mysteriously after drinking an energy drink
Tweak: healing with medkits from inventory works better, makes smarter choices of medkits
Fix: loot from dead enemies is now always identical for all co-op players
Fix: Purna no longer finishes her Fury with fists equipped
Fix: map tracking after death
Fix: zone info in the quarantine zone (City of Moresby)
Tweak: respawn point selection is now smarter

General
Improved stability and network performance in co-op
Quest and reward fixes implemented