Apple has released the Mac OS X 10.5.8 update, this release plugs 18 security holes and contains other bug fixes as well. Mac users can download it over here.
The 10.5.8 Update is recommended for all users running Mac OS X Leopard and includes general operating system fixes that enhance the stability, compatibility and security of your Mac, as well as specific fixes for:
- compatibility and reliability issues when joining AirPort networks.
- an issue that could cause some monitor resolutions to no longer appear in Displays System Preferences.
- issues that may affect Bluetooth reliability.