The Fallout: New Vegas patch188.8.131.525 (PC) or 1.06 (PlayStation 3) was released on July 6, 2011 for the PS3 version of the game and July 7 for the PC version. Patch 184.108.40.2064 (Xbox 360) was also released on July 8.
Officially listed changes
New feature: system save is automatically created prior to endgame sequence. After credits, user is prompted to load save game. This will allow single save players to play add-ons without creating a new game.
Fixed issue where minigun audio could get stuck/keep playing indefinitely when fired out of V.A.T.S.
Script fix to restore destroyed ED-E. This should address issues players have with attempting to use certain companions (e.g. Rex) or when the player needs to clear his or her companions before entering an area (e.g. Zion / Honest Hearts).
New “Companion Dismissal Terminals” added to Gun Runners and Lucky 38. These will allow players with lost companions from earlier patches to force-fire if they are experiencing problems attempting to get into add-ons or areas that prevent companions from entering.
Arms no longer lifted above head when sneaking with certain weapons.
Fixed sound cutting out after extended playthroughs.
Massive world optimizations in major areas for better stability/performance with multiple add-ons installed.
Players can now have six or more add-ons installed without encountering an infinite “loading DLC” message on startup.
Navmesh fixes/non-player characters no longer getting stuck.
Scripts added to keep certain non-player characters who were marked as dead from respawning.
Fixed issue where window in Vault 19 let player see through the world.
Greasers from Crandon’s quest now become disabled when the player leaves the area.
Fixed a Legion melee non-player character near Nelson that was under the terrain.
Modified Legion and NCR hit-squad non-player characters to use new level lists. They now have a smoother leveling curve that takes into account new level caps. Legion and NCR hit squad spawning was also revised to make their appearance more consistent and less memory-intensive.
Fix for companions going into unconscious/conscious cycle over and over again when stung with cazador poison. In normal mode (or against companions), cazador poison now lasts 8 seconds, doing 18 points of damage per second. It is, in fact, even deadlier than the normal version, but lasts 1/4 as long. In hardcore mode or against the player, poison remains 30 seconds/5 damage per second.
Casino slot scripts altered so their max bets do not produce game economy-ruining levels of cap overflow
Fixed bug where rescued Powder Gangers would return to the legion camp.
Added Followers of the Apocalypse supplies to three areas of Hoover Dam if you gain their support and fight on independent or NCR paths. This also enables the FoA + NCR “good” ending through Julie Farkas.
The damage of the grenade rifle has been increased drastically.
pcps3xbox360 Eventually, with this patch installed, the game crashes to desktop when the courier goes to Camp McCarran in the external area or reaches the doors to the main building.
xbox360 Similar to the above bug, the game will lock up whenever the player enters the cell area containing the 188 Trading Post. Fast traveling to the 188 avoids this bug, and the player is free to leave and re-enter the area on foot until the cell is "refreshed" from too much distance or entering an interior. Removing the Title Update 5 is proven to fix this issue but with obvious and unwanted detriments.