Where Safari pulls ahead is with its much smoother pinch-to-zoom performance and also slightly more fluid two-finger scrolling, which is now graphics-accelerated in Mountain Lion. Safari will get. 8/10 (21 点) - Mac macOS Mountain Lionを無料ダウンロード macOS Mountain Lionをインストールすれば優れた簡単な方法でOSシステムオペレーターを更新することができます。.
macOS Big Sur elevates the most advanced desktop operating system in the world to a new level of power and beauty. Experience Mac to the fullest with a refined new design. Enjoy the biggest Safari update ever. Discover new features for Maps and Messages. And get even more transparency around your privacy.
Check compatibility
macOS Big Sur is compatible with these computers:
MacBook introduced in 2015 or later
MacBook Air introduced in 2013 or later
MacBook Pro introduced in late 2013 or later
Mac mini introduced in 2014 or later
iMac introduced in 2014 or later
iMac Pro
Mac Pro introduced in 2013 or later
View the complete list of compatible computers.
If upgrading from macOS Sierra or later, macOS Big Sur requires 35.5GB of available storage to upgrade. If upgrading from an earlier release, macOS Big Sur requires up to 44.5GB of available storage. To upgrade from OS X Mountain Lion, first upgrade to OS X El Capitan, then upgrade to macOS Big Sur.
Make a backup
Before installing any upgrade, it’s a good idea to back up your Mac. Time Machine makes it simple, and other backup methods are also available. Learn how to back up your Mac.
Get connected
It takes time to download and install macOS, so make sure that you have a reliable Internet connection. If you're using a Mac notebook computer, plug it into AC power.
Download macOS Big Sur
If you're using macOS Mojave or later, get macOS Big Sur via Software Update: Choose Apple menu > System Preferences, then click Software Update.
Mac Mountain Lion Os
Or use this link to open the macOS Big Sur page on the App Store: Get macOS Big Sur. Then click the Get button or iCloud download icon.
Begin installation
After downloading, the installer opens automatically.
Click Continue and follow the onscreen instructions. You might find it easiest to begin installation in the evening so that it can complete overnight, if needed.
If the installer asks for permission to install a helper tool, enter the administrator name and password that you use to log in to your Mac, then click Add Helper.
Allow installation to complete
Please allow installation to complete without putting your Mac to sleep or closing its lid. Your Mac might restart, show a progress bar, or show a blank screen several times as it installs both macOS and related updates to your Mac firmware.
Stay up to date
After installing macOS Big Sur, you will be notified when updates to macOS Big Sur are available. You can also use Software Update to check for updates: Choose Apple menu > System Preferences, then click Software Update.
Or get macOS Big Sur automatically
If you're using OS X El Capitan v10.11.5 or later and your App Store preferences or Software Update preferences are set to download new updates when available, macOS Big Sur will download conveniently in the background, making it even easier to upgrade. A notification will inform you when macOS Big Sur is ready to be installed. Click Install to get started, or dismiss the notification to install later. When you're ready to install, just open the file named Install macOS Big Sur from your Applications folder.
Learn more
- If the installer shows a list of apps that are not optimized for your Mac, learn about 32-bit app compatibility, then choose whether to proceed with the installation.
- For the strongest security and latest features, upgrade to macOS Big Sur. If you have hardware or software that isn't compatible with Big Sur, you might be able to install an earlier macOS.
- You can also use macOS Recovery to reinstall the macOS you're using now, upgrade to the latest compatible macOS, or install the macOS that came with your Mac.
For the protection of our customers, Apple does not disclose, discuss, or confirm security issues until a full investigation has occurred and any necessary patches or releases are available. To learn more about Apple Product Security, see the Apple Product Security website.
For information about the Apple Product Security PGP Key, see How to use the Apple Product Security PGP Key.
Where possible, CVE IDs are used to reference the vulnerabilities for further information.
To learn about other security updates, see Apple security updates.
Safari 8.0.8, Safari 7.1.8, and Safari 6.2.8
Safari Application
Available for: OS X Mountain Lion v10.8.5, OS X Mavericks v10.9.5, and OS X Yosemite v10.10.4
Impact: Visiting a malicious website may lead to user interface spoofing
Description: A malicious website could open another site and prompt for user input without a way for the user to tell where the prompt came from. The issue was addressed by displaying the prompt origin to the user.
CVE-ID
CVE-2015-3729 : Code Audit Labs of VulnHunt.com
Safari For Mac Mountain Lion
WebKit
Available for: OS X Mountain Lion v10.8.5, OS X Mavericks v10.9.5, and OS X Yosemite v10.10.4
Impact: Visiting a maliciously crafted website may lead to an unexpected application termination or arbitrary code execution
Description: Multiple memory corruption issues existed in WebKit. These issues were addressed through improved memory handling.
CVE-ID
CVE-2015-3730 : Apple
CVE-2015-3731 : Apple
Aladdin hardlock usb emulator download. CVE-2015-3732 : Apple
CVE-2015-3733 : Apple
CVE-2015-3734 : Apple
CVE-2015-3735 : Apple
CVE-2015-3736 : Apple
CVE-2015-3737 : Apple
CVE-2015-3738 : Apple
CVE-2015-3739 : Apple
CVE-2015-3740 : Apple
CVE-2015-3741 : Apple
CVE-2015-3742 : Apple
CVE-2015-3743 : Apple
CVE-2015-3744 : Apple
CVE-2015-3745 : Apple
CVE-2015-3746 : Apple
CVE-2015-3747 : Apple
CVE-2015-3748 : Apple Unable to verify macos catalina.
CVE-2015-3749 : Apple
WebKit
Available for: OS X Mountain Lion v10.8.5, OS X Mavericks v10.9.5, and OS X Yosemite v10.10.4
Impact: A malicious website may trigger plaintext requests to an origin under HTTP Strict Transport Security
Description: An issue existed where Content Security Policy report requests would not honor HTTP Strict Transport Security. This issue was addressed through improved HTTP Strict Transport Security enforcement.
CVE-ID
CVE-2015-3750 : Muneaki Nishimura (nishimunea)
WebKit
Available for: OS X Mountain Lion v10.8.5, OS X Mavericks v10.9.5, and OS X Yosemite v10.10.4
Impact: Image loading may violate a website's Content Security Policy directive
Description: An issue existed where websites with video controls would load images nested in object elements in violation of the website's Content Security Policy directive. This issue was addressed through improved Content Security Policy enforcement.
CVE-ID
CVE-2015-3751 : Muneaki Nishimura (nishimunea)
WebKit
Available for: OS X Mountain Lion v10.8.5, OS X Mavericks v10.9.5, and OS X Yosemite v10.10.4
Impact: Content Security Policy report requests may leak cookies
Description: Two issues existed in how cookies were added to Content Security Policy report requests. Cookies were sent in cross-origin report requests in violation of the standard. Cookies set during regular browsing were sent in private browsing. These issues were addressed through improved cookie handling.
CVE-ID Installer macos catalina sur macbook pro 2011.
CVE-2015-3752 : Muneaki Nishimura (nishimunea)
WebKit Canvas
Available for: OS X Mountain Lion v10.8.5, OS X Mavericks v10.9.5, and OS X Yosemite v10.10.4
Impact: A malicious website may exfiltrate image data cross-origin
Description: Images fetched through URLs that redirected to a data:image resource could have been exfiltrated cross-origin. This issue was addressed through improved canvas taint tracking.
CVE-ID
CVE-2015-3753 : Antonio Sanso and Damien Antipa of Adobe
WebKit Page Loading
Available for: OS X Mountain Lion v10.8.5, OS X Mavericks v10.9.5, and OS X Yosemite v10.10.4
Impact: Cached authentication state may reveal private browsing history
Description: An issue existed in caching of HTTP authentication. Credentials entered in private browsing mode were carried over to regular browsing which would reveal parts of the user's private browsing history. This issue was addressed through improved caching restrictions.
CVE-ID
CVE-2015-3754 : Dongsung Kim (@kid1ng)
WebKit Process Model
Available for: OS X Mountain Lion v10.8.5, OS X Mavericks v10.9.5, and OS X Yosemite v10.10.4
Impact: Visiting a malicious website may lead to user interface spoofing
Description: Navigating to a malformed URL may have allowed a malicious website to display an arbitrary URL. This issue was addressed through improved URL handling.
CVE-ID
CVE-2015-3755 : xisigr of Tencent's Xuanwu Lab