Editing Darwin (operating system) (section)

===Darwin 16–19; OS X rebranded into macOS===
{| class="wikitable mw-collapsible mw-collapsed"
|-
! Version
! style="width: 128px;" | Date
! style="width: 159px;" | Corresponding releases
! Notes
|-
! 16.0.0
| September 13, 2016
| rowspan="3" | {{ubl
                | [[macOS Sierra]]
                | [[iOS 10]]
                | [[watchOS]] 3
                | [[tvOS]] 10
                | [[bridgeOS]] 1
                }}
| macOS v10.12.0 and iOS 10.0.1 <small>(initial release version)</small>
* OS X was rebranded into macOS.
* Writing to <code>/Volumes</code> directory is now restricted to root user or any user with root privileges
* [[System Integrity Protection]] now covers <code>/Library/Application Support/com.apple.TCC</code> directory that contains a list of applications that are allowed to "control the computer"
* [[Objective-C]] [[Garbage collection (computer science)|garbage collector]] removed and replaced by [[Automatic Reference Counting]] that was introduced with Darwin v12.0 (OS X v10.8). Objective-C applications that use garbage collection will no longer work.
* Native support for [[PPTP]] was removed.
|-
! 16.5.0
| March 27, 2017
| macOS v10.12.4 and iOS 10.3
* Changed filesystem from [[HFS+]] to [[APFS]] on iOS devices. APFS is already available on macOS since 10.12.0 but can't be used on boot partition.
|-
! 16.6.0
| July 19, 2017
| macOS v10.12.6 and iOS 10.3.3
|-
! 17.0.0
| September 19, 2017
| rowspan="4" | {{ubl
                | [[macOS High Sierra]]
                | [[iOS 11]]
                | [[watchOS]] 4
                | [[tvOS]] 11
                | [[bridgeOS]] 2
                }}
| 
* [[APFS]] replaces [[HFS+]] as the default filesystem for boot partition in macOS on Macs with [[flash storage]]. On Macs with [[hard disk drive|HDDs]], the boot partition must be reformatted to use APFS.
* [[ntpd]] replaced by [[timed]] as a time synchronization service
* [[FTP]] and [[telnet]] commands are removed.
* [[Loadable kernel module|Kernel extensions]] ("kexts") will require explicit approval by the user before being able to run.
|-
! 17.5.0
| March 29, 2018
| macOS 10.13.4
* Support for external graphics processors using [[Thunderbolt (interface)#Thunderbolt 3|Thunderbolt 3]], and removes support for external graphics processors using Thunderbolt 1 and 2.
|-
! 17.6.0
| June 1, 2018
| macOS v10.13.5
|-
! 17.7.0
| July 9, 2018
| macOS v10.13.6 and iOS 11.4.1
|-
! 18.0.0
| September 24, 2018
| rowspan="2" | {{ubl
                | [[macOS Mojave]]
                | [[iOS 12]]
                | [[watchOS]] 5
                | [[tvOS]] 12
                | [[bridgeOS]] 3
                }}
| 
|-
! 18.2.0
| October 30, 2018
| macOS v10.14.1 and iOS 12.1
* Added support for the new Radeon Vega 20 GPUs in the new MacBooks
|-
! 19.0.0
| September 19, 2019
| rowspan="6" | {{ubl
                | [[macOS Catalina]]
                | [[iOS 13]]
                | [[watchOS]] 6
                | [[tvOS]] 13
                | [[bridgeOS]] 4
                }}
| 
|-
! 19.2.0
| December 10, 2019
| macOS 10.15.2 and iOS 13.3
|-
! 19.3.0
| January 28, 2020
| macOS 10.15.3 and iOS 13.3.1
* System Extensions replace Kexts and runs in userspace, outside of the kernel.<ref>{{Cite web|url=https://developer.apple.com/videos/play/wwdc2019/702/|title = System Extensions and DriverKit - WWDC19 - Videos}}</ref>
* [[DriverKit]] replaces [[I/O Kit]]. It Introduces "Dexts" (Driver Extensions) which are built using DriverKit. Driverkit is a new SDK with all new frameworks based on IOKit, but is updated and modernized. Device Drivers run in userspace, outside of the kernel.<ref>{{cite web|url=https://developer.apple.com/documentation/systemextensions|title=SystemExtensions|website=Apple Developer Documentation}}</ref><ref>{{cite web|url=https://developer.apple.com/documentation/driverkit|title=DriverKit|website=Apple Developer Documentation}}</ref><ref>{{cite AV media|url=https://developer.apple.com/videos/play/wwdc2019/702/|title=System Extensions and DriverKit|website=Apple Developer Documentation}}</ref>
|-
! 19.4.0
| March 24, 2020
| 
|-
! 19.5.0
| April 30, 2020
| macOS 10.15.5 and iOS 13.5
|-
! 19.6.0
| June 1, 2020
| macOS 10.15.6 beta 2 and iOS 13.6.0 beta 2
|-
|}