Apple has now not most effective launched three new beta variations to builders, but additionally the most important safety replace that fixes what Apple has an issue with safety certificates for SSL / TLS connections.This replace is really helpful for all customers and is on hand for Snow Leopard and Lion , as well as for the server version is available. The installation can be initiated directly via Software Update or you downloaded the update to the Apple support site .
Quote from the Release Notes:
The Security Update 2011-005 is recommended for all users and improves the security of Mac OS X.
Can detailed information about the security update it in the associated support documentation read.