Apple releases Lion, Snow Leopard updates

Apple on Wednesday released Mac OS X 10.7.5, which adds Gatekeeper to Lion—hot on the heels of releasing OS X 10.8.2 and iOS 6.

The company says that the new version of Lion adds the typical assortment of general system fixes and stability improvements, but the hallmark feature of the otherwise minor OS update is the introduction of Gatekeeper. That technology, first introduced with Mountain Lion, gives users more control over which apps can launch on their Macs.

In addition to introducing Gatekeeper, Apple says that 10.7.5 resolves an issue where Launchpad icons could get rearranged after restarting, improves Wi-Fi reliability for the Late 2009 iMac and newer, resolves an issue with using Spotlight to search certain SMB servers, and improves compatability connecting to Active Directory servers.

The update is available for both the client and server editions of Mac OS X Lion from Apple’s website. It weighs in between one and two gigabytes, depending on the version you choose and whether you pick the combo updater or standalone installer.

Apple also released a security update for Snow Leopard on Wednesday. Details on those security patches and others are available from Apple’s website.

Updated 3 p.m. ET with a link to details on Snow Leopard’s security update.

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