Software Update Mac Os X 10.9

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Tech observers were seriously taken aback when Apple took several days to address a security flaw in OS X 10.9 Mavericks after quickly fixing the same bug in iOS. The vulnerability comes from an improper implementation of SSL and TLS—the standard encryption systems used for secure Internet connections.

PCMag security expert Fahmida Rashid said users should update immediately, noting that the bug allows attackers to 'launch a man-in-the-middle attack and eavesdrop on all user activity.' It does this by incorrectly validating the certificates that prove that, for example, the Web page you're seeing is really coming from your bank. An attacker on the same Wi-Fi network could spoof the bank's site and see any information you send.

Mac OS X 10.9 Mavericks DP2 Update 1.38 GB OS X v10.9 Developer Preview is pre-release software. Do not use this pre-release software in a commercial operating environment or with imp.

How to Update

Luckily, Apple has patched the vulnerability—and added a few desirable user feature enhancements, too boot. Here's how to get the update:
  • Make sure that you're on a trusted network such as your home or work connection.
  • Back up your Mac using Time Machine or another backup system. (But if you don't have access to these, it's more important to perform the upgrade, even without a backup. You could just save cricital files to external storage as a half measure.)
  • Make sure your Mac is plugged in if it's a laptop.
  • Tap the Apple icon at the top left of your Mac's main menu bar, and choose 'Software Update...'
10.9.5
  • The Mac App Store will open, showing you available updates. You'll have to agree to an Apple user license agreement. If other updates are offered, run those as well as the OS X updates. (Another option is to download Apple's manual installer).
  • Do not interrupt the update by unplugging or restarting the computer. It will show a progress bar for several minutes; On my MacBook Air it took just 12 minutes.
  • You'll be asked to enter your Apple ID and password to verify iCloud and Keychain options.
  • Enjoy your now-safe Mavericks-based Mac just as before.

For more, check out PCMag's full review of Apple OS X 10.9.2 Mavericks (for Mac).

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How to get updates for macOS Mojave or later

If you've upgraded to macOS Mojave or later, follow these steps to keep it up to date:

  1. Choose System Preferences from the Apple menu , then click Software Update to check for updates.
  2. If any updates are available, click the Update Now button to install them. Or click ”More info” to see details about each update and select specific updates to install.
  3. When Software Update says that your Mac is up to date, the installed version of macOS and all of its apps are also up to date. That includes Safari, iTunes, Books, Messages, Mail, Calendar, Photos, and FaceTime.

To find updates for iMovie, Garageband, Pages, Numbers, Keynote, and other apps that were downloaded separately from the App Store, open the App Store on your Mac, then click the Updates tab.

To automatically install macOS updates in the future, including apps that were downloaded separately from the App Store, select ”Automatically keep my Mac up to date.” Your Mac will notify you when updates require it to restart, so you can always choose to install those later.

Software For Mac Os X 10.9

How to get updates for earlier macOS versions

If you're using an earlier macOS, such as macOS High Sierra, Sierra, El Capitan, or earlier,* follow these steps to keep it up to date:

Mac Os 10.8 Update Free

  1. Open the App Store app on your Mac.
  2. Click Updates in the App Store toolbar.
  3. Use the Update buttons to download and install any updates listed.
  4. When the App Store shows no more updates, the installed version of macOS and all of its apps are up to date. That includes Safari, iTunes, iBooks, Messages, Mail, Calendar, Photos, and FaceTime. Later versions may be available by upgrading your macOS.

To automatically download updates in the future, choose Apple menu  > System Preferences, click App Store, then select ”Download newly available updates in the background.” Your Mac will notify you when updates are ready to install.


* If you're using OS X Lion or Snow Leopard, get OS X updates by choosing Apple menu  > Software Update.

How to get updates for iOS

10.9

Learn how to update your iPhone, iPad, or iPod touch to the latest version of iOS.

Learn more

  • Learn how to upgrade to the latest version of macOS.
  • Find out which macOS your Mac is using.
  • You can redownload apps that you previously downloaded from the App Store.
  • Your Mac doesn't automatically download large updates when it's using a Personal Hotspot.