Glitches plagued Fallout: New Vegas when it came out all the way back in October of last year, making patches all but a certainty for the game. Even so, it's still surprising to see such a massive patch as the one detailed in this post on the Bethesda Blog, nine months after the game's initial release.

It's a meaty one too, with significant updates coming across all platforms--Xbox 360, PS3, and PC--that include a new save feature that creates a point for single save players to play DLC without creating a new game and "massive world optimizations in major areas for better stability/performance with multiple DLCs installed." The full list of changes numbers well over 100 and includes many entries for fixed and optimized issues.

The patch precedes the upcoming third DLC pack, "Old World Blues," due to arrive on July 19. In it, players get to see how some of the mutated creatures came to be as the Courier gets trapped in a laboratory where pre-war experiments took place. For a look at what to expect, check out these brand new screens from the expansion.