Patch 1.6.1

Patch 1.6.1 was released on 2 August 2005.
==General==
* Spell casting is no longer interrupted when leaving combat. 
==Warriors==
* Improved Shield Block - Fixed a bug where Rank 3 of the talent was not granting the extra block.
* Bloodthirst - Damage bonus increased to 40% of attack power. 
==Items==
* The Oil of Immolation effect is no longer affected by bonuses to spell damage from items. 
==Raids & Dungeons==
===Blackwing Lair===
* Several encounters in Blackwing Lair now cause the front gate to close, preventing players from zoning out or joining an in-progress battle.
* The Razorgore encounter has been changed slightly to make it less "random". The spawning should be more consistent throughout the fight.
* The timer for Vaelastrasz the Corrupt is now more persistent. You can no longer reset the one-hour time limit for beating him by leaving the instance. Also, Vaelastrasz the Corrupt will not respawn for 12 hours if he has not been beaten when the timer expires.
* The drakes in Blackwing Lair will no longer leave the lab.
===Maraudon===
* Lowered experience values for Creeping Sludge. 
==Macs==
* Increased the maximum number of sounds which can be played simultaneously. This will fix problems where some sounds could be dropped in very busy situations.
* Fixed WoW Error Reporter so that it doesn't crash under Mac OS X 10.4 when trying to send an error report.
* Worked around an issue where you would lose your Expose/Dashboard preferences if you crashed or asserted while in fullscreen mode on Mac OS X 10.4.
* Fixed the "blockWidth", "srec", and "bitnum < m_numBits" assertions bugs that would crash the game.
* Fixed a bug involving corpses near the player that could result in a crash ("BusError"). 
1.06.1