Xbox 360 users will automatically be prompted to download the patch when they connect to Xbox Live. This is the final version of the FormID patch, and was released on. This patch is available for download for PC users and over Xbox Live for Xbox 360 users. Installing only disk 1 gives Oblivion version 1.1.425. The 5th Anniversary Edition comes with the patch but this is applied only when disk 2 (Knights of the Nine and Shivering Isles) is installed.Users that purchased Oblivion through Steam do not need to manually patch their copy of Oblivion, the latest patch is automatically incorporated into the game when it is downloaded, and subsequent patches are released through automatic updates.
Performance has also greatly been improved since the original version of Oblivion. Upgrading Oblivion to the latest patch is highly recommended, as many bugs and glitches are often fixed by the patches.