The most recent patch for Baldur's Gate II - Throne of Bhaal is Version 26498. This version is almost mandatory for any kind of English mod you may want to install for Baldur's Gate II with expansion. If you do not have the expansion install the Shadows of Amn patch instead. This patch includes numerous bugfixes and extra content such as new storekeepers. Here a few important notes about the patch:
- Most fixes are not retroactive. The patch will prevent certain bugs from happening, but it won't magically fix your save games.
- Your save games will be functional after the patch.
- You can install this patch overtop of BG2: Throne of Bhaal, whether it is unpatched or Beta patched.
- For Multiplayer, only same version games can play with same version games. People without the patch won't be able to play with people with the BETA patch, nor with people with the final patch.
- Once the patch is installed, the only way to go back to an unpatched version of BG2: Throne of Bhaal is to uninstall and reinstall BG2: Throne of Bhaal.
- If you need to reinstall the patch you can do so at any time as the patch simply overwrites the files.