Apple has today released the long awaited Mac OS X 10.5.7 update. The update which had been in testing since late February contained several hundred bug fixes and enhancements in its last seed over the weeekend.
The 10.5.7 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.
For detailed information on this update, please visit this website: http://support.apple.com/kb/HT3397
Mac OS X 10.5.7 is available in software update.