macOS High Sierra
macOS High Sierra (version ) is the fourteenth major release of macOS, Apple Inc.'s desktop operating system for Macintosh computers. macOS High Sierra was announced at the WWDC on June 5, [2] and was released on September 25, The name "High Sierra" refers to the High Sierra region in California. Like with Snow Leopard, Mountain Lion and El Capitan, the name also alludes to its status as a refinement of its predecessor, focused on performance improvements and technical updates rather than user features. Among the apps with notable changes are Photos and Safari.[2][3][4]
System requirements[edit]
macOS High Sierra runs on the following Macintosh computers:[5]
macOS High Sierra requires at least 2&#;GB of RAM and &#;GB of available disk space.
HEVC hardware acceleration requires a Mac with a sixth-generation Intel processor or newer:
External graphics processor support requires a Thunderbolt 3-enabled Mac:
It is possible to install High Sierra on many older Macintosh computers that are not officially supported by Apple. This requires using a patch to modify the install image.[6]
Changes[edit]
System[edit]
Apple File System[edit]
Apple File System (APFS) replaces HFS Plus as the default file system in macOS for the first time with High Sierra.[2] It supports 64‑bit inode numbers, is designed for flash memory, and is designed to speed up common tasks like duplicating a file and finding the size of a folder's contents. It also has built‑in encryption, crash‑safe protections, and simplified data backup on the go.[7]
Metal 2[edit]
Metal, Apple's low-level graphics API, has been updated to Metal 2. It includes virtual-reality and machine-learning features, as well as support for external GPUs.[2] The system's windowing system, Quartz Compositor, supports Metal 2.
Media[edit]
macOS High Sierra adds support for High Efficiency Video Coding (HEVC), with hardware acceleration where available, as well as support for High Efficiency Image File Format (HEIF). Macs with the Intel Kaby Lake processor offer hardware support for Main 10 profile bit hardware decoding, those with the Intel Skylake processor support Main profile 8-bit hardware decoding, and those with AMD Radeon series graphics also support full HEVC decoding.[2] However, whenever an Intel IGP is present, the frameworks will only direct requests to Intel IGP. In addition, audio codecs FLAC and Opus are also supported, but not in iTunes.[8][9]
Other[edit]
Kernel extensions ("kexts") will require explicit approval by the user before being able to run.[10]
The Low Battery notification and its icon were replaced by a flatter modern look.[citation needed]
The time service ntpd was replaced with timed for the time synchronisation.[11]
The FTP and telnet command line programs were removed.[12]
The screen can now be locked using the shortcut Cmd+Ctrl+Q. The ability to lock screen using a menu bar shortcut activated in Keychain Access preferences has now been removed.[13]
The update added support for external graphics processors for Macs equipped with Thunderbolt 3 ports.[14] The update discontinued support for external graphics processors in or older Macs, equipped with Thunderbolt 1 and 2 ports.
Starting with , when a bit app is opened, users get a one-time warning about its future incompatibility with the macOS operating system.[15]
Applications[edit]
Final Cut Pro 7[edit]
Apple announced the original Final Cut Studio suite of programs will not work on High Sierra. Media professionals that depend on any of those programs were advised to create a double boot drive to their computer.[16]
Photos[edit]
macOS High Sierra gives Photos an updated sidebar and new editing tools.[2] Photos synchronizes tagged People with iOS [2]
Mail[edit]
Mail has improved Spotlight search with Top Hits.[2] Mail also uses 35% less storage space due to optimizations, and Mail's compose window can now be used in split-screen mode.[17]
Safari[edit]
macOS High Sierra includes Safari Safari 11 has a new "Intelligent Tracking Prevention" feature that uses machine learning to block third parties from tracking the user's actions.[18] Safari can also block autoplaying videos from playing.[19][20] The "Reader Mode" can be set to always-on.[21] Safari 11 also supports WebAssembly.[22] The last version of Safari that High Sierra supports is This version has known security issues. [23]
Notes[edit]
The Notes app allows the user to add tables to a note.[24] A note can be pinned to the top of the list.[25]
Siri[edit]
Siri now uses a more natural and expressive voice. It also uses machine learning to understand the user better. Siri synchronizes information across iOS and Mac devices so the Siri experience is the same regardless of the product being used.[26]
Messages[edit]
The release of macOS High Sierra (and iOS ) introduced support for Messages in iCloud.[27] This feature allows messages to sync across all devices using the same iCloud account. When messages are deleted they are deleted on each device as well, and messages stored in the cloud do not take up local storage on the device anymore.[28] In order to use the feature, the user has to enable two-factor authentication for their Apple ID.[29]
Reception[edit]
Reception of macOS High Sierra was reportedly positive.[30][citation needed]
Problems[edit]
macOS High Sierra and have a critical[31] vulnerability that allowed an attacker to become a root user by typing root in the username of the password prompt and not entering the password. This was fixed in the Security Update macOS High Sierra v[32]
When it was first launched, it was discovered[by whom?] that the process named "WindowServer" had a memory leak, leading to much slower graphics performance and lagging animations, probably due to some last-minute changes in Metal 2. This was fixed in macOS
macOS High Sierra had an error that caused DisplayLink to stop working for external monitors. Only 1 monitor is able to be extended, if using 2 external monitors, they can only be mirrored. This also seems to be an issue with the beta version of Mojave.[citation needed]DisplayLink have said they are working with Apple to resolve the issues but as of the most recent[when?] macOS High Sierra update, the issue still persists.[33]
Release history[edit]
| Version | Build | Date | Darwin | Notes | Standalone download |
|---|---|---|---|---|---|
| 17A | September 25, | Original Mac App Store release About the security content of macOS High Sierra | N/A | ||
| 17A | October 5, | About the security content of macOS High Sierra Supplemental Update | macOS Supplemental | ||
| 17B48 | October 31, | About the macOS High Sierra Update About the security content of macOS High Sierra | macOS High Sierra update | ||
| 17B | November 29, | About the security content of Security Update | Security Update macOS High Sierra v | ||
| 17B | |||||
| 17C88 | December 6, | About the macOS High Sierra Update About the security content of macOS High Sierra | macOS High Sierra Update macOS High Sierra Combo Update | ||
| 17C89 | |||||
| 17C | January 8, | About the security content of macOS High Sierra Supplemental Update | macOS High Sierra Supplemental | ||
| 17C | |||||
| 17D47 | January 23, | About the macOS High Sierra Update About the security content of macOS High Sierra | macOS High Sierra Update macOS High Sierra Combo Update | ||
| 17D | |||||
| 17D | February 19, | About the security content of macOS High Sierra Supplemental Update | macOS High Sierra Supplemental | ||
| 17D | |||||
| 17E | March 29, | About the macOS High Sierra Update About the security content of macOS High Sierra | macOS High Sierra Update macOS High Sierra Combo Update | ||
| 17E | April 24, | About the security content of Security Update | Security Update macOS High Sierra v | ||
| 17F77 | June 1, | About the macOS High Sierra Update About the security content of macOS High Sierra | macOS High Sierra Update macOS High Sierra Combo Update | ||
| 17G66 | July 9, | About the macOS High Sierra Update About the security content of macOS High Sierra | macOS High Sierra Update macOS High Sierra Combo Update | ||
| 17G | |||||
| 17G | October 30, | About the security content of Security Update High Sierra | Security Update High Sierra | ||
| 17G | December 5, | About the security content of Security Update High Sierra | Security Update High Sierra | ||
| 17G | January 22, | About the security content of Security Update High Sierra | Security Update High Sierra | ||
| March 25, | About the security content of Security Update High Sierra | Security Update High Sierra | |||
| 17G | March 29, | About the security content of Security Update High Sierra | Security Update High Sierra | ||
| 17G | May 13, | About the security content of Security Update High Sierra | Security Update High Sierra | ||
| July 22, | About the security content of Security Update High Sierra | ||||
| 17G | July 29, | About the security content of Security Update High Sierra | |||
| 17G | September 26, | About the security content of Security Update High Sierra | Security Update High Sierra | ||
| 17G | October 29, | About the security content of Security Update High Sierra | Security Update High Sierra | ||
| 17G | December 10, | xnu~1 | About the security content of Security Update High Sierra | Security Update High Sierra | |
| 17G | January 28, | xnu~1 | About the security content of Security Update High Sierra | Security Update High Sierra | |
| 17G | March 24, | xnu~1 | About the security content of Security Update High Sierra | Security Update High Sierra | |
| May 26, | xnu~1 | About the security content of Security Update High Sierra | Security Update High Sierra | ||
| 17G | June 1, | xnu~1 | About the security content of Security Update High Sierra | Security Update High Sierra | |
| 17G | July 15, | xnu~1 | About the security content of Security Update High Sierra | Security Update High Sierra | |
| 17G | September 24, | xnu~1 | About the security content of Security Update High Sierra | Security Update High Sierra | |
| 17G | November 12, | xnu~1 | About the security content of Security Update High Sierra | Security Update High Sierra |
References[edit]
- ^"About the security content of Security Update High Sierra, Security Update Mojave". Apple Support. November 12, Retrieved November 12,
- ^ abcdefgh"Apple Events - WWDC Keynote, June - Apple". Archived from the original on
- ^"MacOS High Sierra Announced, Release Date Set for Fall". OS X Daily. Archived from the original on 27 June Retrieved 6 June
- ^Cunningham, Andrew. "macOS High Sierra tech preview: A quick look at the stuff you can't see". Ars Technica. Archived from the original on 20 June Retrieved 20 June
- ^"How to download macOS High Sierra". Apple Inc.
- ^macOS High Sierra Patcher Tool for Unsupported Macs
- ^"Apple File System (APFS) announced for , scales 'from Apple Watch to Mac Pro' and focuses on encryption". 9to5Mac. Archived from the original on Retrieved
- ^"iOS 11、macOS High Sierra：FLAC、Opus、HOA（3Dサウンド）をサポート" [iOS 11, macOS High Sierra: Supports FLAC, Opus, HOA (3D sound)]. Macお宝鑑定団 blog（羅針盤） (in Japanese). Archived from the original on
- ^What's New in Audio - WWDC - Videos - Apple Developer. Archived from the original on
- ^"Secure Kernel Extension Loading". Apple Developer. June 19, Retrieved June 24,
- ^"Has anyone got the time? How High Sierra has changed time synchronisation".
- ^"How to get BSD FTP and Telnet back in (High Sierra)?". Ask Different.
- ^"New Lock Screen feature in macOS High Sierra". July 17,
- ^"Use an external graphics processor with your Mac". Apple.
- ^"bit app compatibility with macOS High Sierra - Apple Support". April 11,
- ^www.cronistalascolonias.com.ar
- ^"macOS High Sierra: Everything We Know | MacRumors". Archived from the original on Retrieved
- ^Lomas, Natasha. "Apple adds ad tracker blocker to desktop Safari | TechCrunch". Archived from the original on Retrieved
- ^O'Kane, Sean (). "Apple's new version of macOS is called High Sierra". The Verge. Archived from the original on Retrieved
- ^"macOS is now fully baked with macOS High Sierra". Ars Technica. Archived from the original on Retrieved
- ^"5 Notable New Features Coming to macOS High Sierra". OS X Daily. Archived from the original on Retrieved
- ^"What's New in Safari". Archived from the original on
- ^www.cronistalascolonias.com.ar?adv_search=true&query=cpea:apple:safari*:*:*:*:*:*:*
- ^"Apple Reveals 'macOS High Sierra' With APFS, Metal 2, and Refinements to Safari and Other Apps". Archived from the original on Retrieved
- ^Gil, Lory (8 June ). "macOS High Sierra FAQ: Everything you need to know!". iMore. Archived from the original on 19 June Retrieved 20 June
- ^"macOS High Sierra: Everything We Know | MacRumors". Archived from the original on Retrieved
- ^"Apple Releases macOS High Sierra With Messages in iCloud Support". MacRumors. Retrieved
- ^"iOS What you need to know about Messages in iCloud". CNET. Retrieved
- ^"How to sync your text messages to iCloud". iMore. Retrieved
- ^"macOS High Sierra review: Incremental update worthy of your time, eventually". Macworld. Retrieved
- ^"Vulnerability Details&#;: CVE".
- ^"macOS High Sierra 'root' security bug: Here's how to fix it now!". iMore. Archived from the original on Retrieved
- ^"macOS High Sierra + and Mojave Early Previews". DisplayLink Support.
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