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Mac OS X Snow Leopard
please note:
- the content below is remote from Wikipedia
- it has been imported raw for GetWiki
{{Short description|Seventh major version of macOS, released in 2009}}{{Distinguish|Mac OS X Leopard}}{{Use mdy dates|date=October 2013}}- the content below is remote from Wikipedia
- it has been imported raw for GetWiki
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| name | Mac OS X 10.6 Snow Leopard| logo = OSXLeopard.svg| logo_size = 60px| screenshot = Snow Leopard Desktop.png| caption = Screenshot of Mac OS X Snow Leopard| version of = macOS| developer = Apple Inc.
| url=https://web.archive.org/web/20090929063403www.apple.com/macosx/ | title=Apple - Mac OS X Snow Leopard - The world’s most advanced OS}} | Closed source>Closed, with open source components | Commercial software>Commercial software license and Apple Public Source License (APSL) | Hybrid kernel>Hybrid (XNU)| updatemodel = Apple Software Update | IA-32, x86-64MAC OS X V10.6 SNOW LEOPARD â€” INSTALLATION AND SETUP GUIDE | DATE=SEPTEMBER 2009 | ACCESS-DATE=OCTOBER 7, 2020 | ARCHIVE-URL=HTTPS://WEB.ARCHIVE.ORG/WEB/20201127111822/HTTPS://MANUALS.INFO.APPLE.COM/MANUALS/1000/MA1172/EN_US/SNOW_LEOPARD_INSTALLATION_INSTRUCTIONS.PDF, live, | release_version = 10.6.8 v1.1 (Build 10K549) | TITLE=DOWNLOAD MAC OS X 10.6.8 UPDATE V.1.1 | ACCESS-DATE=JUNE 23, 2011 | ARCHIVE-URL=HTTPS://WEB.ARCHIVE.ORG/WEB/20110624213203/HTTP://SUPPORT.APPLE.COM/KB/DL1400, live, | TITLE=APPLE TO SHIP MAC OS X SNOW LEOPARD ON AUGUST 28 | PUBLISHER=APPLE INC. | ARCHIVE-DATE=DECEMBER 9, 2019 | URL-STATUS=LIVE, | Mac OS X Leopard>Mac OS X 10.5 Leopard| succeeded_by = OS X Lion| tagline = The world’s most advanced operating system. Finely tuned. | iTunes is no longer supported as of September 2014 and Safari (web browser)>Safari support is terminated as well,ITUNES 11.4 FOR OS X 10.6 >URL=HTTPS://SUPPORT.APPLE.COM/KB/DL1774 | ACCESS-DATE=28 JULY 2019 | ARCHIVE-DATE=FEBRUARY 11, 2015 | URL-STATUS=LIVE, though the last security update happened in September 2013.SECURITY UPDATE 2013-004 (SNOW LEOPARD) >URL=HTTPS://SUPPORT.APPLE.COM/KB/DL1678 | ACCESS-DATE=28 JULY 2019 | ARCHIVE-DATE=SEPTEMBER 19, 2022 | URL-STATUS=LIVE, HTTP://WWW.COMPUTERWORLD.COM/S/ARTICLE/9246609/APPLE_RETIRES_SNOW_LEOPARD_FROM_SUPPORT_LEAVES_1_IN_5_MACS_VULNERABLE_TO_ATTACKS >TITLE=APPLE RETIRES SNOW LEOPARD FROM SUPPORT, LEAVES 1 IN 5 MACS VULNERABLE TO ATTACKS | FIRST=GREGG | COMPUTERWORLD >DATE=FEBRUARY 26, 2014 | URL-STATUS=LIVE | ARCHIVE-DATE=MAY 28, 2014 | Mac App Store on Mac OS X Snow Leopard was released on January 27, 2016.MAC APP STORE UPDATE FOR OS X SNOW LEOPARD | PUBLISHER=APPLE INC. | DATE=27 JANUARY 2016 | ARCHIVE-URL=HTTPS://WEB.ARCHIVE.ORG/WEB/20220919181314/HTTPS://SUPPORT.APPLE.COM/KB/DL1860?LOCALE=EN_US | LAST=CUNNINGHAM | DATE=JANUARY 27, 2016 | ARS TECHNICA >ACCESS-DATE=2017-06-14 | ARCHIVE-URL=HTTPS://WEB.ARCHIVE.ORG/WEB/20170107044318/HTTP://ARSTECHNICA.COM/APPLE/2016/01/APPLE-UPDATES-SNOW-LEOPARD-SO-YOU-CAN-CONTINUE-TO-UPGRADE-FROM-SNOW-LEOPARD/ | DF=MDY-ALL, }}{{macOS topics}}Mac OS X Snow Leopard (version 10.6) (also referred to as OS X Snow LeopardWEB, Mac App Store Update for OS X Snow Leopard,support.apple.com/kb/DL1860, Apple Inc., 28 July 2019, 27 January 2016, September 19, 2022,web.archive.org/web/20220919181314/https://support.apple.com/kb/DL1860?locale=en_US, live, ) is the seventh major release of macOS, Apple’s desktop and server operating system for Macintosh computers.Snow Leopard was publicly unveiled on June 8, 2009 at Apple’s Worldwide Developers Conference. On August 28, 2009, it was released worldwide, and was made available for purchase from Apple’s website and retail stores at the price of US$29 for a single-user license. As a result of the low price, initial sales of Snow Leopard were significantly higher than that of its predecessors whose price started at US$129.WEB,www.npd.com/press/releases/press_090917.html, Snow Leopard Leaps Out of the Gate: Sales for Latest Apple OS Far Exceed Prior Launches, According to NPD, NPD Group, September 17, 2009, May 7, 2010, March 26, 2010,www.npd.com/press/releases/press_090917.html," title="web.archive.org/web/20100326164956www.npd.com/press/releases/press_090917.html,">web.archive.org/web/20100326164956www.npd.com/press/releases/press_090917.html, dead, The release of Snow Leopard came nearly two years after the launch of Mac OS X Leopard, the second longest time span between successive Mac OS X releases (the time span between Tiger and Leopard was the longest).The goals of Snow Leopard were improved performance, greater efficiency and the reduction of its overall memory footprint, unlike previous versions of Mac OS X which focused more on new features. Apple famously marketed Snow Leopard as having “zero new features”.WEB,arstechnica.com/apple/reviews/2009/08/mac-os-x-10-6.ars, Mac OS X 10.6 Snow Leopard: the Ars Technica review, Siracusa, John, 2009-09-01, Ars Technica, en-us, 2019-10-15, July 13, 2014,arstechnica.com/apple/2009/08/mac-os-x-10-6/," title="web.archive.org/web/20140713115247arstechnica.com/apple/2009/08/mac-os-x-10-6/,">web.archive.org/web/20140713115247arstechnica.com/apple/2009/08/mac-os-x-10-6/, live, Its name signified its goal to be a refinement of the previous OS X version, Leopard.WEB, WWDC 2009 Keynote,www.macworld.com/article/1140897/keynote.html, Macworld, 2 December 2015, live,www.macworld.com/article/1140897/keynote.html," title="web.archive.org/web/20151208160557www.macworld.com/article/1140897/keynote.html,">web.archive.org/web/20151208160557www.macworld.com/article/1140897/keynote.html, December 8, 2015, mdy-all, Much of the software in Mac OS X was extensively rewritten for this release in order to take full advantage of modern Macintosh hardware and software technologies (64-bit, Cocoa, etc.). New programming frameworks, such as OpenCL, were created, allowing software developers to use graphics cards in their applications. It was also the first Mac OS release since System 7.1.1 to not support Macs using PowerPC processors, as Apple dropped support for them and focused on Intel-based products. As support for Rosetta was dropped in Mac OS X Lion, Snow Leopard is the last version of Mac OS X that is able to run PowerPC-only applications.Snow Leopard was succeeded by OS X Lion (version 10.7) on July 20, 2011.WEB,www.apple.com/pr/library/2011/07/20Mac-OS-X-Lion-Available-Today-From-the-Mac-App-Store.html, Mac OS X Lion Available Today From the Mac App Store, Apple.com, Apple Inc., July 20, 2011, live,www.apple.com/pr/library/2011/07/20Mac-OS-X-Lion-Available-Today-From-the-Mac-App-Store.html," title="web.archive.org/web/20110721232504www.apple.com/pr/library/2011/07/20Mac-OS-X-Lion-Available-Today-From-the-Mac-App-Store.html,">web.archive.org/web/20110721232504www.apple.com/pr/library/2011/07/20Mac-OS-X-Lion-Available-Today-From-the-Mac-App-Store.html, July 21, 2011, mdy-all, For several years, Apple continued to sell Snow Leopard at its online store for the benefit of users that required Snow Leopard in order to upgrade to later versions of OS X. Snow Leopard was the last version of Mac OS X to be distributed primarily through optical disc, as all further releases were mainly distributed through the Mac App Store introduced in the Snow Leopard 10.6.6 update.WEB,www.apple.com/osx/how-to-upgrade/, Upgrade to OS X Mavericks, Apple.com, Apple Inc., November 5, 2013, If you’re running Leopard and would like to upgrade to OS X Mavericks, first you’ll need to upgrade to OS X Snow Leopard. You can purchase OS X Snow Leopard here., dead,www.apple.com/osx/how-to-upgrade/," title="web.archive.org/web/20131105201919www.apple.com/osx/how-to-upgrade/,">web.archive.org/web/20131105201919www.apple.com/osx/how-to-upgrade/, November 5, 2013, mdy-all, Snow Leopard is the last version of Mac OS X that supports the 32-bit Intel Core Solo and Intel Core Duo CPUs. Because of this, Snow Leopard still remained somewhat popular alongside OS X Lion, despite its lack of continued support,NEWS,lowendmac.com/2015/the-rise-and-fall-of-mac-os-x-versions-2009-to-2015/, The Rise and Fall of Mac OS X Versions, 2009 to 2015, 2015-10-04, Low End Mac, 2017-08-10, en-US, August 11, 2017,lowendmac.com/2015/the-rise-and-fall-of-mac-os-x-versions-2009-to-2015/," title="web.archive.org/web/20170811005457lowendmac.com/2015/the-rise-and-fall-of-mac-os-x-versions-2009-to-2015/,">web.archive.org/web/20170811005457lowendmac.com/2015/the-rise-and-fall-of-mac-os-x-versions-2009-to-2015/, live, mostly because of its ability to run PowerPC-based applications.{{citation needed|date=October 2017}}Snow Leopard is also the last release of Mac OS X to ship with a welcome video at first boot after installation.WEB,www.macrumors.com/2011/07/01/booting-os-x-lion-gm-no-welcome-video-new-introduction-to-scrolling/, Booting OS X Lion GM: No Welcome Video, New Introduction to Scrolling, MacRumors, July 2011, en, 2020-04-18, August 4, 2020,web.archive.org/web/20200804005348/https://www.macrumors.com/2011/07/01/booting-os-x-lion-gm-no-welcome-video-new-introduction-to-scrolling/, live, Reception of Snow Leopard was positive; see the section below.System requirementsApple states the following basic Snow Leopard system requirements are:
LicenseSnow Leopard is available as an upgrade for Intel-based Macintosh computers. Single-user licenses and “family pack” licenses for up to five computers are available. For qualifying Mac computers bought after June 8, 2009, Apple offered a discounted price through its “up-to-date” program, provided that customers’ orders were faxed or postmarked by December 26, 2009. The standalone retail version of Snow Leopard is marketed as being restricted to users of Mac OS X Leopard, while the recommended upgrade path from Apple for Mac OS X Tiger is through the “Mac Box Set”, which includes Mac OS X Snow Leopard and the current versions of iLife and iWork.There are three licenses available.WEB,images.apple.com/legal/sla/docs/macosx106.pdf, EnglishLicense, February 22, 2010, live,images.apple.com/legal/sla/docs/macosx106.pdf," title="web.archive.org/web/20091122185613images.apple.com/legal/sla/docs/macosx106.pdf,">web.archive.org/web/20091122185613images.apple.com/legal/sla/docs/macosx106.pdf, November 22, 2009, mdy-all, These licenses differ in their requirements for pre-installed versions of Mac OS X:
A “Family Pack Upgrade for Mac OS X Leopard” license is also mentioned as a subset of the Leopard Upgrade.
New or changed featuresMac OS X Snow Leopard is a release that refined the existing feature set, expanded the technological capabilities of the operating system, and improved application efficiency.{{POV statement|date=July 2023}} Many of the changes involve how the system works in the background and are not intended to be seen by the user. For example, the Finder application was completely rewritten in the Cocoa application programming interface, from its previous Carbon codebase.WEB,www.engadget.com/2008-10-17-ai-snow-leopard-to-include-rewritten-finder.html, AI: ‘Snow Leopard’ to include rewritten Finder, Despite significant changes in the software, users will experience almost no changes in the user interface. Snow Leopard includes the following changes:
Refinements to the user interfaceWhile the Finder was completely rewritten in Cocoa, it did not receive a major user interface overhaul. Instead, the interface has been modified in several areas to promote ease of use. These changes include:
New wallpapersAs with most upgrades of Mac OS X, new wallpapers are available. There are new wallpapers in the Nature (two of which are of snow leopards), Plants and Black and White sub-folders under the Apple folder. Furthermore, there are new Apple wallpaper sub-folders with multiple wallpapers:
Removed features
Developer technologies64-bit architectureMac OS X Tiger added limited support for 64-bit applications on machines with 64-bit processors; Leopard extended the support for 64-bit applications to include applications using most of Mac OS X’s libraries and frameworks.In Snow Leopard, most built-in applications have been rebuilt to use the 64-bit x86-64 architecture (excluding iTunes, Front Row, Grapher and DVD Player applications).WEB,www.apple.com/macosx/technology/#sixtyfourbit, Mac OS X — New technologies in Snow Leopard, Apple, August 29, 2009,www.apple.com/macosx/technology/#sixtyfourbit," title="web.archive.org/web/20091112005921www.apple.com/macosx/technology/#sixtyfourbit,">web.archive.org/web/20091112005921www.apple.com/macosx/technology/#sixtyfourbit, November 12, 2009, They will run in 32-bit mode on machines with 32-bit processors, and in 64-bit mode on machines with 64-bit processors.In addition, the Mac OS X kernel has been rebuilt to run in 64-bit mode on some machines. On those machines, Snow Leopard supports up to 16 terabytes of RAM. Newer Xserve and Mac Pro machines will run a 64-bit kernel by default; newer iMac and MacBook Pro machines can run a 64-bit kernel, but will not do so by default.WEB, Mac OS X Server v10.6: Macs that use the 64-bit kernel,support.apple.com/kb/HT3770, Apple, September 6, 2009, dead,support.apple.com/kb/HT3770," title="web.archive.org/web/20090831113241support.apple.com/kb/HT3770,">web.archive.org/web/20090831113241support.apple.com/kb/HT3770, August 31, 2009, mdy-all, Users wishing to use the 64-bit kernel on those machines must hold down the numbers 6 and 4 on the keyboard while booting to get the 64-bit kernel to load.WEB, Mac OS X Server v10.6: Starting up with the 32-bit or 64-bit kernel,support.apple.com/kb/HT3773, Apple, September 6, 2009, dead,support.apple.com/kb/HT3773," title="web.archive.org/web/20090831153411support.apple.com/kb/HT3773,">web.archive.org/web/20090831153411support.apple.com/kb/HT3773, August 31, 2009, mdy-all, WEB,www.cnet.com/news/64-bit-snow-leopard-defaults-to-32-bit-kernel/, 64-bit Snow Leopard defaults to 32-bit kernel, Craig, Simms, August 31, 2009, CNET, December 28, 2021, December 28, 2021,web.archive.org/web/20211228195438/https://www.cnet.com/news/64-bit-snow-leopard-defaults-to-32-bit-kernel/, live, A change to the com.apple.Boot.plist will also enable users with compatible computers to permanently boot into 64-bit for those wishing to do so.Stuart Harris, software product marketing manager at Apple Australia, said, “For the most part, everything that they experience on the Mac, from the 64-bit point of view, the applications, the operating system, is all going to be 64-bit, but that at this stage there were very few things, such as device drivers, that required 64-bit mode at the kernel level”.With Mac OS X Snow Leopard only the following Apple computers run or are capable of running the 64-bit kernel:WEB,support.apple.com/kb/HT3770, Mac OS X Server v10.6: Macs that use the 64-bit kernel, Apple Inc., August 27, 2009, February 8, 2011, Learn which Macs can use the 64-bit kernel in Mac OS X Server v10.6, and which use it by default., dead,support.apple.com/kb/HT3770," title="web.archive.org/web/20101205233913support.apple.com/kb/HT3770,">web.archive.org/web/20101205233913support.apple.com/kb/HT3770, December 5, 2010, mdy-all, {| class=“wikitable” | ||
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| Capable HTTPS://DISCUSSIONS.APPLE.COM/THREAD/3209335 >TITLE = CAN I INSTALL SNOW LEOPARD ON THE NEW MAC MINI, |
Grand Central Dispatch
Grand Central Dispatch (GCD) uses the multiple processor cores now in every new Macintosh for more efficient performance. Due to the complexity of multithreaded programming and technical difficulties traditionally involved in making applications optimized for multicore CPUs, the majority of computer applications do not effectively use multiple processor cores.WEB,arstechnica.com/apple/reviews/2009/08/mac-os-x-10-6.ars/11, Mac OS X 10.6 Snow Leopard: the Ars Technica review, John, Siracusa, August 31, 2009, Ars Technica, February 8, 2011, live,arstechnica.com/apple/reviews/2009/08/mac-os-x-10-6.ars/11," title="web.archive.org/web/20101207040953arstechnica.com/apple/reviews/2009/08/mac-os-x-10-6.ars/11,">web.archive.org/web/20101207040953arstechnica.com/apple/reviews/2009/08/mac-os-x-10-6.ars/11, December 7, 2010, mdy-all, As a result, additional processing power, compared to single-core machines, often goes unused. Grand Central Dispatch includes APIs to help programmers efficiently use these cores for parallel programming.Grand Central Dispatch abstracts the notion of threads away, and instead provides developers with the concept of queues—lists of jobs (blocks of code) that need to be executed. GCD takes the responsibility of distributing the jobs among actual threads and cores, and clearing up unused memory created by inactive or old threads to achieve maximum performance. Apple is also releasing APIs for Grand Central Dispatch for developers to use in their applications and also to analyze specific blocks of code running on Grand Central Dispatch.NEWS, John, Markoff, Apple in Parallel: Turning the PC World Upside Down?,bits.blogs.nytimes.com/2008/06/10/apple-in-parallel-turning-the-pc-world-upside-down/, The New York Times, June 10, 2008, February 8, 2011, live,bits.blogs.nytimes.com/2008/06/10/apple-in-parallel-turning-the-pc-world-upside-down/," title="web.archive.org/web/20110111073540bits.blogs.nytimes.com/2008/06/10/apple-in-parallel-turning-the-pc-world-upside-down/,">web.archive.org/web/20110111073540bits.blogs.nytimes.com/2008/06/10/apple-in-parallel-turning-the-pc-world-upside-down/, January 11, 2011, mdy-all, A new C and Objective-C language feature named “Blocks” facilitates creation of code that will easily optimize to take advantage of Grand Central Dispatch.NEWS, Chris, Lattner, “Blocks” in Clang (aka closures),lists.cs.uiuc.edu/pipermail/cfe-dev/2008-August/002670.html, August 27, 2008, dead,lists.cs.uiuc.edu/pipermail/cfe-dev/2008-August/002670.html," title="web.archive.org/web/20110904020457lists.cs.uiuc.edu/pipermail/cfe-dev/2008-August/002670.html,">web.archive.org/web/20110904020457lists.cs.uiuc.edu/pipermail/cfe-dev/2008-August/002670.html, September 4, 2011, mdy-all, WEB, Alan, Quatermain, Comment on Article: Cocoa for Scientists (Part XXVII): Getting Closure with Objective-C,www.macresearch.org/cocoa-scientists-part-xxvii-getting-closure-objective-c#comment-14138, MacResearch, September 1, 2008,www.macresearch.org/cocoa-scientists-part-xxvii-getting-closure-objective-c#comment-14138," title="web.archive.org/web/20081201160012www.macresearch.org/cocoa-scientists-part-xxvii-getting-closure-objective-c#comment-14138,">web.archive.org/web/20081201160012www.macresearch.org/cocoa-scientists-part-xxvii-getting-closure-objective-c#comment-14138, 2008-12-01, dead, WEB, Grand Central Dispatch a better way to do multicore,images.apple.com/macosx/technology/docs/GrandCentral_TB_brief_20090608.pdf, Apple Inc., 2009, dead,images.apple.com/macosx/technology/docs/GrandCentral_TB_brief_20090608.pdf," title="web.archive.org/web/20090612043735images.apple.com/macosx/technology/docs/GrandCentral_TB_brief_20090608.pdf,">web.archive.org/web/20090612043735images.apple.com/macosx/technology/docs/GrandCentral_TB_brief_20090608.pdf, June 12, 2009, mdy-all,OpenCL
OpenCL (Open Computing Language) addresses the power of graphics processing units (GPUs) to leverage them in any application, and not just for graphics-intensive applications like 3D games. OpenCL automatically optimizes for the kind of graphics processor in the Mac, adjusting itself to the available processing power. OpenCL provides consistent numeric precision and accuracy, fixing a problem that has hampered GPU-based programming in the past.{{citation| title=OpenCL Taking the graphics processor beyond graphics| url=https://images.apple.com/macosx/technology/docs/OpenCL_TB_brief_20090608.pdf| publisher=Apple Inc.| year=2009| url-status=dead| archive-url=https://web.archive.org/web/20090711083408images.apple.com/macosx/technology/docs/OpenCL_TB_brief_20090608.pdf| archive-date=July 11, 2009| df=mdy-all}}OpenCL includes a C-based programming language with a structure that is already familiar to Mac OS X programmers, who can use Xcode developer tools to adapt their programs to work with OpenCL. Only the most process intensive parts of the application need to be written in OpenCL C without affecting the rest of the code. OpenCL is an open standard that has been supported by AMD, Intel, and Nvidia; it is maintained by Khronos Group.It serves a similar purpose to Nvidia’s C for CUDA and Microsoft’s Direct3D 11 compute shaders.It only works with the following Mac GPUs: NVIDIA GeForce 320M, GT 330M, 9400M, 9600M GT, 8600M GT, GT 120, GT 130, GTX 285, 8800 GT, 8800 GS, Quadro FX 4800, FX 5600 and ATI Radeon HD 4670, HD 4850, HD 4870, HD 5670, HD 5750, HD 5770, HD 5870, HD 6490M, HD 6750M, HD 6770M, HD 6970M. If the system does not possess one of these compatible GPUs, OpenCL code will instead execute on the system’s CPU.WEB,arstechnica.com/apple/reviews/2009/08/mac-os-x-10-6.ars/15, Mac OS X 10.6 Snow Leopard: the Ars Technica review, Siracusa, John, Ars Technical, October 31, 2009, 2017-06-14, live,arstechnica.com/apple/reviews/2009/08/mac-os-x-10-6.ars/15," title="web.archive.org/web/20120509081146arstechnica.com/apple/reviews/2009/08/mac-os-x-10-6.ars/15,">web.archive.org/web/20120509081146arstechnica.com/apple/reviews/2009/08/mac-os-x-10-6.ars/15, May 9, 2012, mdy-all, , John Siracusa’s review of Snow Leopard for Ars Technica.CUPS
CUPS (the printing system used in many Unix-like operating systems) has been updated to version 1.4 which provides improved driver, networking, and Kerberos support along with performance improvements. CUPS 1.4 is also the first implementation of the Internet Printing Protocol version 2.1.MAILING LIST, Michael, Sweet, IPP/2.1 support now in CUPS 1.4svn!,www.pwg.org/archives/ipp/2009/005553.html, ipp, January 9, 2009, June 5, 2009, live,web.archive.org/web/20090815201046/https://www.pwg.org/archives/ipp/2009/005553.html, August 15, 2009, mdy-all,Power management
Power management has been improved, with implementation of a new wake on demand feature supported on more recent Macintosh hardware.WEB, Fleishman, Glenn, Wake on Demand lets Snow Leopard sleep with one eye open,www.macworld.com/article/142468/2009/08/wake_on_demand.html, Macworld.com, August 28, 2009, September 15, 2009, How it works”, “Energy Saver preference pane, dead,www.macworld.com/article/142468/2009/08/wake_on_demand.html," title="web.archive.org/web/20090916005930www.macworld.com/article/142468/2009/08/wake_on_demand.html,">web.archive.org/web/20090916005930www.macworld.com/article/142468/2009/08/wake_on_demand.html, September 16, 2009, mdy-all, Wake on demand takes advantage of the sleep proxy service implemented in AirPort and Time Capsule routers,WEB, Mac OS X v10.6: About Wake on Demand (Apple Article HT3774),support.apple.com/kb/HT3774, Apple, August 27, 2009, September 15, 2009, Setting up Wake on Demand”, “Setting up a Bonjour Sleep Proxy, live,support.apple.com/kb/HT3774," title="web.archive.org/web/20090831113247support.apple.com/kb/HT3774,">web.archive.org/web/20090831113247support.apple.com/kb/HT3774, August 31, 2009, mdy-all, so that the computer can sleep while the router responds to mDNS queries. Should the request require the host computer to wake up, the router sends the necessary special wake-up-packetNote: The networking industry nomenclature for a wake-up-packet is Magic Packet to the sleeping computer.Security
Apple strengthened Mac OS X by implementing stack protection, and sandboxing more Mac OS X components such as the H.264 decoder in QuickTime and browser plug-ins as a separate process in Safari.“Peering Inside Snow Leopard Security” {{Webarchive|url=https://web.archive.org/web/20110608020406db.tidbits.com/article/10509 |date=June 8, 2011 }}, TidBITS Safe Computing, August 27, 2009 Secure virtual memory was an option in earlier releases on Snow Leopard, but the checkbox to disable it was removed later. An anti-malware feature was also added to the system that alerts the user if malware is detected.{{citation| title= Apple Confirms Anti-Malware Added to ‘Snow Leopard’.| url=www.pcmag.com/article2/0,2817,2352102,00.asp| date= August 27, 2009| url-status= live| archive-url=www.pcmag.com/article2/0%2C2817%2C2352102%2C00.asp" title="web.archive.org/web/20090901060400www.pcmag.com/article2/0%2C2817%2C2352102%2C00.asp">web.archive.org/web/20090901060400www.pcmag.com/article2/0%2C2817%2C2352102%2C00.asp| archive-date= September 1, 2009| df= mdy-all}} Mac OS X 10.6.8 added regular malware definition updates.{{citation| title= Apple releases Mac OS X update to catch MAC Defender malware| url=iphone.appleinsider.com/articles/11/05/31/apple_releases_mac_os_x_update_to_catch_mac_defender_malware.html| date= May 31, 2011| url-status= live| archive-url=iphone.appleinsider.com/articles/11/05/31/apple_releases_mac_os_x_update_to_catch_mac_defender_malware.html" title="web.archive.org/web/20130502103103iphone.appleinsider.com/articles/11/05/31/apple_releases_mac_os_x_update_to_catch_mac_defender_malware.html">web.archive.org/web/20130502103103iphone.appleinsider.com/articles/11/05/31/apple_releases_mac_os_x_update_to_catch_mac_defender_malware.html| archive-date= May 2, 2013| df= mdy-all}}Computer security researcher Charlie Miller claims that OS X Snow Leopard is more vulnerable to attack than Microsoft Windows for lacking full address space layout randomization (ASLR) since Mac OS X Leopard,“Apple’s Snow Leopard Is Less Secure Than Windows, But Safer,” {{webarchive|url=https://web.archive.org/web/20130619204108www.wired.com/gadgetlab/2009/09/security-snow-leopard/ |date=June 19, 2013 }} Wired, September 2, 2009 a technology that Microsoft started implementing in Windows Vista.“Snow Leopard security – The good, the bad and the missing” {{webarchive|url=https://web.archive.org/web/20090901160753www.theregister.co.uk/2009/08/29/snow_leopard_security/ |date=September 1, 2009 }}, The Register, August 29, 2009The Safari web browser has received updates to version 6.0 in Lion and Mountain Lion, but not in Snow Leopard.{{citation| publisher= Sophos Naked Security blog| title= Where are the Safari security updates for Windows and Snow Leopard? Users left exposed| url=nakedsecurity.sophos.com/2012/07/30/no-safari-security-updates/| date= July 30, 2012| url-status= live| archive-url=nakedsecurity.sophos.com/2012/07/30/no-safari-security-updates/" title="web.archive.org/web/20120801234831nakedsecurity.sophos.com/2012/07/30/no-safari-security-updates/">web.archive.org/web/20120801234831nakedsecurity.sophos.com/2012/07/30/no-safari-security-updates/| archive-date= August 1, 2012| df= mdy-all}}Compatibility
Snow Leopard breaks compatibility with several older versions of some applications, such as Parallels Desktop 3.0, versions of Aperture before 2.1.1, and versions of Keynote before 2.0.2, among other software.WEB, Diaz, Jesus,gizmodo.com/5347769/the-mac-os-x-snow-leopard-applications-blacklist, Applications unsupported by Snow Leopard: The Unofficial List, Gizmodo.com, August 28, 2009, June 21, 2011, live,gizmodo.com/5347769/the-mac-os-x-snow-leopard-applications-blacklist," title="web.archive.org/web/20110602052729gizmodo.com/5347769/the-mac-os-x-snow-leopard-applications-blacklist,">web.archive.org/web/20110602052729gizmodo.com/5347769/the-mac-os-x-snow-leopard-applications-blacklist, June 2, 2011, mdy-all, Apple has also published a list of applications with known compatibility issues with Snow Leopard.WEB,support.apple.com/kb/HT3258, Mac OS X v10.6: About incompatible software, support.apple.com, Apple Inc., November 25, 2009, December 29, 2010, live,support.apple.com/kb/HT3258," title="web.archive.org/web/20110201073411support.apple.com/kb/HT3258,">web.archive.org/web/20110201073411support.apple.com/kb/HT3258, February 1, 2011, mdy-all, Printer and scanner drivers used by previous versions of Mac OS X are not compatible with Snow Leopard and will be replaced during Snow Leopard installation. Since the initial release of Snow Leopard many manufacturers have provided compatible drivers that are available via Software Update.WEB,support.apple.com/kb/HT3669, Mac OS X v10.6: Printer and scanner software, Support.apple.com, June 21, 2011, dead,support.apple.com/kb/ht3669," title="web.archive.org/web/20110718200303support.apple.com/kb/ht3669,">web.archive.org/web/20110718200303support.apple.com/kb/ht3669, July 18, 2011, mdy-all, If a native driver is not available Snow Leopard also includes CUPS and Gutenprint open source drivers that may provide limited functionality.10.6.0 introduced a bug that frequently prevented DNS queries from returning IPv6 addresses.WEB,lists.apple.com/archives/ipv6-dev/2010/Feb/msg00003.html, Two new bugs reported, Lists.apple.com, February 4, 2010, June 21, 2011, live,lists.apple.com/archives/ipv6-dev/2010/Feb/msg00003.html," title="web.archive.org/web/20110707153537lists.apple.com/archives/ipv6-dev/2010/Feb/msg00003.html,">web.archive.org/web/20110707153537lists.apple.com/archives/ipv6-dev/2010/Feb/msg00003.html, July 7, 2011, mdy-all, WEB, Iljitsch Van Beijnum,arstechnica.com/business/news/2010/09/there-is-no-plan-b-why-the-ipv4-to-ipv6-transition-will-be-ugly.ars, There is no Plan B: why the IPv4-to-IPv6 transition will be ugly, Ars Technica, September 29, 2010, June 21, 2011, live,arstechnica.com/business/news/2010/09/there-is-no-plan-b-why-the-ipv4-to-ipv6-transition-will-be-ugly.ars," title="web.archive.org/web/20110522122344arstechnica.com/business/news/2010/09/there-is-no-plan-b-why-the-ipv4-to-ipv6-transition-will-be-ugly.ars,">web.archive.org/web/20110522122344arstechnica.com/business/news/2010/09/there-is-no-plan-b-why-the-ipv4-to-ipv6-transition-will-be-ugly.ars, May 22, 2011, mdy-all, WEB, Iljitsch Van Beijnum,arstechnica.com/apple/news/2010/11/apple-fixes-broken-ipv6-by-breaking-it-some-more.ars, Apple fixes broken IPv6 by breaking it some more, Ars Technica, November 11, 2010, June 21, 2011, live,arstechnica.com/apple/news/2010/11/apple-fixes-broken-ipv6-by-breaking-it-some-more.ars," title="web.archive.org/web/20110529034200arstechnica.com/apple/news/2010/11/apple-fixes-broken-ipv6-by-breaking-it-some-more.ars,">web.archive.org/web/20110529034200arstechnica.com/apple/news/2010/11/apple-fixes-broken-ipv6-by-breaking-it-some-more.ars, May 29, 2011, mdy-all, This was resolved in 10.6.8.MAILING LIST,lists.apple.com/archives/ipv6-dev/2011/Jun/msg00038.html, 10.6.8 seems better, Apple Inc., Ipv6-dev, June 24, 2011, April 22, 2013, live,lists.apple.com/archives/ipv6-dev/2011/Jun/msg00038.html," title="web.archive.org/web/20120803084848lists.apple.com/archives/ipv6-dev/2011/Jun/msg00038.html,">web.archive.org/web/20120803084848lists.apple.com/archives/ipv6-dev/2011/Jun/msg00038.html, August 3, 2012, mdy-all,Reception
At the WWDC in 2009, Apple stated that Snow Leopard features no new major visual changes.WEB,arstechnica.com/apple/reviews/2009/08/mac-os-x-10-6.ars, Mac OS X 10.6 Snow Leopard: the Ars Technica review, Siracusa, John, August 31, 2009, Ars Technica, live,arstechnica.com/apple/reviews/2009/08/mac-os-x-10-6.ars," title="web.archive.org/web/20120422220034arstechnica.com/apple/reviews/2009/08/mac-os-x-10-6.ars,">web.archive.org/web/20120422220034arstechnica.com/apple/reviews/2009/08/mac-os-x-10-6.ars, April 22, 2012, mdy-all, Instead, the release focuses on refining the operating system to enable better performance.OSNews reported that Mac OS X Snow Leopard was well received by critics.WEB,www.osnews.com/story/22068, Snow Leopard Reviews Positive, Upgrades Tiger Too, Osnews.com, June 21, 2011, live,www.osnews.com/story/22068," title="web.archive.org/web/20110622091839www.osnews.com/story/22068,">web.archive.org/web/20110622091839www.osnews.com/story/22068, June 22, 2011, mdy-all, WEB,www.appleinsider.com/articles/09/08/27/review_roundup_apples_snow_leopard_sports_subtle_improvements.html, Review roundup: Apple’s Snow Leopard sports subtle improvements, Appleinsider.com, August 27, 2009, June 21, 2011, live,www.appleinsider.com/articles/09/08/27/review_roundup_apples_snow_leopard_sports_subtle_improvements.html," title="web.archive.org/web/20110611230634www.appleinsider.com/articles/09/08/27/review_roundup_apples_snow_leopard_sports_subtle_improvements.html,">web.archive.org/web/20110611230634www.appleinsider.com/articles/09/08/27/review_roundup_apples_snow_leopard_sports_subtle_improvements.html, June 11, 2011, mdy-all, Engadget reviewed Snow Leopard and pointed out that the price of Snow Leopard dropped from the $129 Apple charged for previous versions of Mac OS X to $29. Engadget’s opinion was that this could be largely because most users would not see a noticeable change in the look and feel of the system.WEB,www.engadget.com/2009/08/26/snow-leopard-review/, Review From, Engadget.com, June 21, 2011, live,www.engadget.com/2009/08/26/snow-leopard-review/," title="web.archive.org/web/20110629094653www.engadget.com/2009/08/26/snow-leopard-review/,">web.archive.org/web/20110629094653www.engadget.com/2009/08/26/snow-leopard-review/, June 29, 2011, mdy-all, However, most reviews commented on the large improvement in speed of the native Mac OS X applications Finder, iCal, Mail, etc.CNET editors gave it 4 stars out of 5, stating “Intel Mac users will like Snow Leopard’s smartly designed interface enhancements, and its Exchange support is a must-have (especially with Outlook for Mac on the way). With a ton of technological improvements, Snow Leopard is worth the $29 upgrade fee.“WEB,reviews.cnet.com/macintosh-os/apple-mac-os-x/4505-3673_7-33676737.html, Snow Leopard Review and Rating from CNET, Reviews.cnet.com, June 21, 2011, live,reviews.cnet.com/macintosh-os/apple-mac-os-x/4505-3673_7-33676737.html," title="web.archive.org/web/20110618005321reviews.cnet.com/macintosh-os/apple-mac-os-x/4505-3673_7-33676737.html,">web.archive.org/web/20110618005321reviews.cnet.com/macintosh-os/apple-mac-os-x/4505-3673_7-33676737.html, June 18, 2011, mdy-all, On October 21, 2009, SFGate blogger Yobie Benjamin wrote that the “MacBook Pro that came preloaded with Snow Leopard kicks butt and is a screaming fast machine”, but “when I tried to upgrade one of my ‘older’ MacBooks, it was a fricking disaster from hell”. Apart from upgrading, Benjamin also tried a clean install. But he complained of slowness even after his clean install. He wrote, “I ended up downgrading back to OSX 10.5.8” then he concluded by writing, “I might try to do it again but it won’t be till Apple releases at least 2 major fix updates. If you want to roll the dice and try, go ahead... your upgrade might work, however, random installs not working is not good for me. Lesson learned --- I’ll wait.“NEWS, Benjamin, Yobie,www.sfgate.com/cgi-bin/blogs/ybenjamin/detail??blogid=150&entry_id=50077, Windows 7 is darn good; Apple OS X Snow Leopard is a[sic] upgrade dog, Sfgate.com, October 21, 2009, June 21, 2011, live,www.sfgate.com/cgi-bin/blogs/ybenjamin/detail?%3Fblogid=150&entry_id=50077," title="web.archive.org/web/20091031214428www.sfgate.com/cgi-bin/blogs/ybenjamin/detail?%3Fblogid=150&entry_id=50077,">web.archive.org/web/20091031214428www.sfgate.com/cgi-bin/blogs/ybenjamin/detail?%3Fblogid=150&entry_id=50077, October 31, 2009, mdy-all, The single-user upgrade and Family Pack units of Snow Leopard ranked 1 and 2 respectively on Amazon.com’s software bestseller charts when Apple announced it would release it within the week.WEB, Keizer, Gregg,www.computerworld.com/s/article/9137052/Apple_s_Snow_Leopard_regains_top_two_Amazon_sales_spots, Snow Leopard Pre-Order sales, Computerworld.com, August 24, 2009, June 21, 2011, live,www.computerworld.com/s/article/9137052/Apple_s_Snow_Leopard_regains_top_two_Amazon_sales_spots," title="web.archive.org/web/20110605002536www.computerworld.com/s/article/9137052/Apple_s_Snow_Leopard_regains_top_two_Amazon_sales_spots,">web.archive.org/web/20110605002536www.computerworld.com/s/article/9137052/Apple_s_Snow_Leopard_regains_top_two_Amazon_sales_spots, June 5, 2011, mdy-all, Testmac.com highlighted other unexpected improvements including the release of a new version of Boot Camp, version 3.0, a cleaner, popup software update process and screen and video recording in the new QuickTime Player.WEB,www.testmac.net/osx-106-snow-leopard-preview/, Review From TestMac.com, Testmac.net, June 26, 2008, June 21, 2011, September 19, 2022,www.testmac.net/osx-106-snow-leopard-preview/," title="web.archive.org/web/20220919181314www.testmac.net/osx-106-snow-leopard-preview/,">web.archive.org/web/20220919181314www.testmac.net/osx-106-snow-leopard-preview/, dead, The BBC reported that a bug in Mac OS X versions 10.6.0 and 10.6.1 which, in rare cases, caused loss of user account data after use of a previously existing guest account by users who had upgraded from a previous version of Mac OS X, received wide publicity.NEWS,news.bbc.co.uk/1/hi/8304229.stm, Data losses in Snow Leopard bug, October 13, 2009, BBC News, December 31, 2009, July 23, 2017,news.bbc.co.uk/1/hi/8304229.stm," title="web.archive.org/web/20170723012422news.bbc.co.uk/1/hi/8304229.stm,">web.archive.org/web/20170723012422news.bbc.co.uk/1/hi/8304229.stm, live, The bug was fixed as of version 10.6.2.WEB,www.appleinsider.com/articles/09/11/09/apple_releases_mac_os_x_10_6_2_with_guest_account_bug_fix.html, Apple releases Mac OS X 10.6.2 with guest account bug fix, Appleinsider.com, November 9, 2009, June 21, 2011, live,www.appleinsider.com/articles/09/11/09/apple_releases_mac_os_x_10_6_2_with_guest_account_bug_fix.html," title="web.archive.org/web/20110611230657www.appleinsider.com/articles/09/11/09/apple_releases_mac_os_x_10_6_2_with_guest_account_bug_fix.html,">web.archive.org/web/20110611230657www.appleinsider.com/articles/09/11/09/apple_releases_mac_os_x_10_6_2_with_guest_account_bug_fix.html, June 11, 2011, mdy-all,Release history
Former Apple CEO Steve Jobs announced Snow Leopard at WWDC on June 9, 2008,PRESS RELEASE, Apple Previews Mac OS X Snow Leopard to Developers,www.apple.com/newsroom/2008/06/09Apple-Previews-Mac-OS-X-Snow-Leopard-to-Developers/, Apple Inc., June 9, 2008, January 10, 2018, November 1, 2017,web.archive.org/web/20171101112448/https://www.apple.com/newsroom/2008/06/09Apple-Previews-Mac-OS-X-Snow-Leopard-to-Developers/, live, and it was privately demonstrated to developers by Senior Vice President of Software Engineering Bertrand Serlet. On Monday, May 11, 2009, after build 10A354, Apple issued a code freeze on Snow Leopard’s APIs.NEWS,www.pcmag.com/article2/0,2817,2347118,00.asp, Analyst’s View: What to Expect in Apple’s Snow Leopard, May 26, 2009, PC Magazine, Michael, Muchmore, May 15, 2009, live,www.pcmag.com/article2/0%2C2817%2C2347118%2C00.asp," title="web.archive.org/web/20090521121115www.pcmag.com/article2/0%2C2817%2C2347118%2C00.asp,">web.archive.org/web/20090521121115www.pcmag.com/article2/0%2C2817%2C2347118%2C00.asp, May 21, 2009, mdy-all, The first public demonstration was given at WWDC 2009 by Serlet and Vice President of Mac OS Engineering, Craig Federighi.WEB, Apple Inc.,events.apple.com.edgesuite.net/0906paowdnv/event/index.html?internal=ijalrmacu, Apple – QuickTime – Apple WWDC Keynote Address, Apple Inc., 2009, December 29, 2010, dead,events.apple.com.edgesuite.net/0906paowdnv/event/index.html?internal=ijalrmacu," title="web.archive.org/web/20110109211953events.apple.com.edgesuite.net/0906paowdnv/event/index.html?internal=ijalrmacu,">web.archive.org/web/20110109211953events.apple.com.edgesuite.net/0906paowdnv/event/index.html?internal=ijalrmacu, January 9, 2011, mdy-all, {|class=“wikitable”See also
References
{{Reflist|30em}}External links
- Mac OS X 10.6 Snow Leopard at Apple.com
- Mac OS X 10.6 Snow Leopard Server at Apple.com
- Mac OS X 10.6 Snow Leopard application compatibility list – user-edited list of Mac apps tested on Snow Leopard
- Mac OS X 10.6 Snow Leopard review at Ars Technica
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