OS X Mavericks

10.9MavericksOS X 10.9OS X 10.9 MavericksOS X v10.910.9 Mavericks10.1010.9.5Apple Mac OSX 10.9 MavericksMac OS X 10.9 ("Mavericks")
OS X Mavericks (version 10.9) is the tenth major release of OS X (since June 2016 rebranded as macOS), Apple Inc.'s desktop and server operating system for Macintosh computers.wikipedia
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MacOS

Mac OS XMacOS X
OS X Mavericks (version 10.9) is the tenth major release of OS X (since June 2016 rebranded as macOS), Apple Inc.'s desktop and server operating system for Macintosh computers.
Since OS X 10.9 Mavericks, releases have been named after locations in California.

OS X Mountain Lion

10.8Mountain LionOS X 10.8
OS X Mavericks can run on any Mac that can run OS X Mountain Lion; as with Mountain Lion, 2 GB of RAM, 8 GB of available storage, and OS X 10.6.8 (Snow Leopard) or later are required.
Mountain Lion was the last paid upgrade for an OS X major release, with OS X Mavericks and later being free.

Apple Worldwide Developers Conference

WWDCWorldwide Developers ConferenceWorld Wide Developer's Conference
OS X Mavericks was announced on June 10, 2013, at WWDC 2013, and was released on October 22, 2013 worldwide. Apple announced OS X Mavericks on June 10, 2013, during the company's Apple Worldwide Developers Conference (WWDC) keynote (which also introduced iOS 7, a revised MacBook Air, the sixth-generation AirPort Extreme, the fifth-generation AirPort Time Capsule, and a redesigned Mac Pro).
In the keynote, Apple unveiled redesigned models of the Mac Pro, AirPort Time Capsule, AirPort Extreme, and MacBook Air, and showcased OS X Mavericks, iOS 7, iWork for iCloud, and a new music streaming service named iTunes Radio.

Apple Maps

MapsAppleApple Map
The new Maps application allows the user the same functionality as in iOS Maps.
During that same conference, Apple announced that a desktop version of the application would be made available for OS X Mavericks.

Timer coalescing

Timer coalescing is a feature that enhances energy efficiency by reducing CPU usage by up to 72 percent.
Apple's XNU kernel based OS X gained support as of OS X Mavericks.

Mavericks, California

Mavericks2009/10 Mavericks Surf ContestMaverick
The update emphasized battery life, Finder improvements, other improvements for power users, and continued iCloud integration, as well as bringing more of Apple's iOS apps to OS X. Mavericks, which was named after the surfing location in Northern California, was the first in the series of OS X releases named for places in Apple's home state; earlier releases used the names of big cats.
On June 10, 2013, at its Worldwide Developers Conference, Apple announced that the latest version of its Mac operating system OS X (version 10.9) would be entitled Mavericks.

Apple Books

iBooksiBookstoreiBooks Store
The new iBooks application allows the user to read books purchased through the iBooks Store.
On June 10, 2013, at the Apple Worldwide Developers Conference, Craig Federighi announced that iBooks would also be provided with OS X Mavericks in fall 2013.

ICloud

iTunes MatchiCloud DriveiWork for iCloud
The update emphasized battery life, Finder improvements, other improvements for power users, and continued iCloud integration, as well as bringing more of Apple's iOS apps to OS X. Mavericks, which was named after the surfing location in Northern California, was the first in the series of OS X releases named for places in Apple's home state; earlier releases used the names of big cats.
From iOS 7 and OS X Mavericks, the iTunes Radio function will be available across devices, including integration with the Music app, both on portable iOS devices and Apple TV (2nd generation onwards), as well as inside the iTunes app on Macintosh and Windows computers.

Apple TV

AppleApple TV (4th generation)Apple TV (Second Generation)
Additionally, AirPlay compatible displays such as the Apple TV can be used as an external display.
A compatible Mac running OS X Mountain Lion or later can wirelessly mirror its screen to an Apple TV through AirPlay Mirroring while one running OS X Mavericks or later can also extend its display with AirPlay Display.

Mac Pro

Apple Mac ProMac Pro (Round)Mac Pro Server
Apple announced OS X Mavericks on June 10, 2013, during the company's Apple Worldwide Developers Conference (WWDC) keynote (which also introduced iOS 7, a revised MacBook Air, the sixth-generation AirPort Extreme, the fifth-generation AirPort Time Capsule, and a redesigned Mac Pro).
OS X Mavericks and later

Tag (metadata)

tagstagtagging
Finder gets enhancements such as tabs, fullscreen support, and document tags.
In Apple's macOS, the operating system has allowed users to assign multiple arbitrary tags as extended file attributes to any file or folder ever since OS X 10.9 was released in 2013, and before that time the open-source OpenMeta standard provided similar tagging functionality in macOS.

Calendar (Apple)

iCalCalendarApple Calendar
The Calendar app has enhancements such as being able to add Facebook events, and an estimate for the travel time of an event
Version 2 of iCal was released as part of Mac OS X v10.4, Version 3 as part of Mac OS X v10.5, Version 4 as part of Mac OS X v10.6, Version 5 as part of Mac OS X v10.7, Version 6 as part of OS X v10.8, Version 7 as part of OS X v10.9, Version 8 as part of OS X v10.10 and OS X v10.11, and version 9 as part of macOS v10.12.

Aqua (user interface)

AquaAqua user interfaceAqua interface
Aqua (user interface)
OS X Mavericks dispensed with several rich and ornamental designs, reflecting the design overhaul in iOS 7.

Virtual memory compression

Compression
Compressed Memory is a virtual memory compression system which automatically compresses data from inactive apps when approaching maximum memory capacity.
In June 2013, Apple announced that it would include virtual memory compression in OS X Mavericks, using the Wilson-Kaplan WKdm algorithm.

Dock (macOS)

DockmacOS DockMac OS X dock
The menu bar and the Dock are available on each display.

OS X Yosemite

OS X 10.10OS X 10.10 YosemiteYosemite
Following the Northern California landmark-based naming scheme introduced with OS X Mavericks, Yosemite is named after the national park.

Safari (web browser)

SafariApple SafariSafari web browser
The Safari browser has a significantly enhanced JavaScript performance which Apple claims is faster than Chrome and Firefox.
Safari 7 for OS X Mavericks and Safari 6.1 (for Lion and Mountain Lion) were released along with OS X Mavericks in an Apple special event on October 22, 2013.

MacOS version history

a history that is largely independentfour-year development effortMac OS X
macOS version history
"Panther", "Tiger", and "Leopard" were registered as trademarks, and Apple registered "Lynx" and "Cougar", but these were allowed to lapse, with Apple instead using the name of iconic locations in California for subsequent releases: 10.9 Mavericks is named after Mavericks, a popular surfing destination; 10.10 Yosemite is named after Yosemite National Park; 10.11 El Capitan is named for El Capitan; 10.12 Sierra is named for the Sierra Nevada mountain range; and 10.13 High Sierra is named for the area around the High Sierra Camps.

Thunderbolt (interface)

ThunderboltThunderbolt 3Thunderbolt 2
IPoTB (Internet Protocol over Thunderbolt Bridge) Thunderbolt networking is supported in Mavericks.
This vulnerability is not present when Thunderbolt is used as a system interconnection (IPoTB supported on OS X Mavericks), because the IP implementation runs on the underlying Thunderbolt low-latency packet-switching fabric, and the PCI Express protocol is not present on the cable.

Firefox

Mozilla FirefoxFirefox BrowserPhoenix
The Safari browser has a significantly enhanced JavaScript performance which Apple claims is faster than Chrome and Firefox.

QuickTime

MOV.movMOV (QuickTime)
QuickTime 10 no longer supports many older video codecs and converts them to the ProRes format when opened.

Google Chrome

ChromeChrome browserGoogle Chrome Extension
The Safari browser has a significantly enhanced JavaScript performance which Apple claims is faster than Chrome and Firefox.
Support for Mac OS X 10.6, 10.7, and 10.8 ended in April 2016 with the release of Chrome 50. Support for OS X 10.9 ended in April 2018 with the release of Chrome 66.

Open Transport

The Open Transport API has been removed.
Open Transport support was removed entirely from OS X starting with version 10.9 (Mavericks).