Learn about the OS X Mavericks v10.9.2 Update

The OS X Mavericks v10.9.2 Update is recommended for all OS X Mavericks users.

Updating your system

You should back up your system before installation. To do this you can use Time Machine. Do not interrupt the installation process once you have started to update your system. You may experience unexpected results if you have third-party system software modiﬁcations installed, or if you've modiﬁed the operating system through other means. Choose Apple menu () > Software Updateto check for the latest Apple software using the Mac App Store, including this update. Other software updates available for your computer may appear, which you should install. Note that an update's size may vary from computer to computer when installed using Software Update. Also, some updates must be installed prior to others.

You can also download the manual update installer. This is a useful option when you need to update multiple computers, but only want to download the update once. Standalone installers are available from Apple Support Downloads.

About the updateResolves an issue that could cause buttons in System Preferences to become unresponsive

The OS X Mavericks v10.9.2 Update is recommended for all OS X Mavericks users. It improves the stability, compatibility, and security of your Mac. This update:

Adds the ability to make and receive FaceTime audio calls

Adds call waiting support for FaceTime audio and video calls

Adds the ability to block incoming iMessages from individual senders

Includes general improvements to the stability and compatibility of Mail

Improves the accuracy of unread counts in Mail

Resolves an issue that prevented Mail from receiving new messages from certain providers

Improves AutoFill compatibility in Safari

Fixes an issue that may cause audio distortion on certain Macs

Improves reliability when connecting to a file server using SMB2

Fixes an issue that may cause VPN connections to disconnect

Improves VoiceOver navigation in Mail and Finder

Improves VoiceOver reliability when navigating websites

Improves compatibility with Gmail Archive mailboxes

Includes improvements to Gmail labels

Improves Safari browsing and Software Update installation when using an authenticated web proxy

Fixes an issue that could cause the Mac App Store to offer updates for apps that are already up to date

Improves the reliability of diskless NetBoot service in OS X Server

Fixes braille driver support for specific HandyTech displays

Resolves an issue when using Safe Boot with some systems

Improves ExpressCard compatibility for some MacBook Pro 2010 models

Resolves an issue which prevented printing to printers shared by Windows XP

Resolves an issue with Keychain that could cause repeated prompts to unlock the Local Items keychain

Fixes an issue that could prevent certain preference panes from opening in System Preferences

Fixes an issue that may prevent migration from completing while in Setup Assistant

Provides a fix for SSL connection verification

For detailed information about the security content of this update, see Apple security updates.

FaceTime is not available in all countries or regions.