Bethesda on its official blog has said that development work on patch update for Fallout: New Vegas has been completed, and currently it is in testing phase.
According to Bethesda the upcoming update will have a solution to Xbox 360 save issue along with fix for various issues as well.
We’ve come up with solutions for the Xbox 360 save issue folks are reporting, along with a number of other issues being reported. We’re currently running final testing and certification on a comprehensive patch for all three platforms (PC, Xbox 360 and PlayStation 3), so we’ll have something available in the coming weeks.
It was also revealed that the next patch for the PC version of the game will be available early next week to resolve save corruption issues and problems with companions, as well as improve performance for NVIDIA users and resolve some issues reported with Havok.