Developer Transition Kit

Apple Developer Transition Kits (DTK), sometimes previously called Developer Transition Systems (DTS), are custom-built systems made available to registered Apple Developers to facilitate processor transitions of the Macintosh platform. One highly-publicized transition moved from PowerPC to Intel processors in 2005 to 2006; the next transition will move from Intel to Apple processors in 2020 to 2022.
==History==
===PowerPC to Intel transition===
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Apple CEO Steve Jobs had made the surprise announcement at Apple's 2005 Worldwide Developers Conference that the company's Macintosh product line would be making a rapid transition from PowerPC to Intel processors. He stated that the PowerPC G5 was having trouble keeping up with Apple's product road map. To provide Mac OS X developers an early Intel-based system before consumer products became available, Developer Transition Kits became immediately available to lease for US$999. These units were the first Intel-based computers to be released by Apple Computer and were expected to be returned by the end of 2006, when Apple's Intel-based products were expected to ship.“This Is Not a Product”: The Apple Developer Transition Kit by Stephen Hackett, MacStories. 2019-01-16.
When the first Intel-based iMac shipped in 2006, it was offered as an exchange item to encourage developers to return their Developer Transition Kits. However, some units remained unreturned, even being used as Windows XP systems. The DTKs have since become rare collector's items.The Apple Developer Transition System – a Trojan Horse PowerMac by Adam Rosen, The Vintage Mac Museum. 2014-05-29.
===Intel to Apple Silicon transition===
On June 22 at the 2020 Worldwide Developers Conference, Apple Senior VP Craig Federighi revealed a new Developer Transition Kit based on a Mac mini running the developer beta of macOS Big Sur on an Apple A12Z processor. The kit would enable registered developers to create, optimize, and test their apps on Apple Silicon during the earliest stages of the transition to Apple processors from 2020 to 2022, before consumer hardware was available.WWDC Special Event — June 22 by Apple, YouTube. 2020-06-22.
==Specifications==
===Developer Transition Kit (2005)===
Apple's official internal designation for the system is Apple Development Platform (ADP 2,1).A first look at Apple's Intel Mac (with photos) by Ryan Katz, Think Secret. 2005-06-22. Archived 2005-06-23. The unit is housed in a Power Mac G5 case, but with a much smaller logic board. It requires the Apple-supplied developer DVD-ROM to be in the optical drive in order to boot. Unlike shipping Intel-based Macs which used GUID-partitioned drives, the DTK booted from a MBR volume.
*3.6 GHz Pentium 4 processor
*Mac OS X 10.4.1 for Intel (preview release)
*Xcode 2.1 with universal binaries
*Universal binary porting guide
===Developer Transition Kit (2020)===
Identified in macOS Big Sur as an Apple Development Platform, the new 2020 Developer Transition Kit is housed in a black Mac mini enclosure. The kit is available through Apple's Universal App Quick Start Program for $500. However, developers are not allowed to disassemble the device and are expected to return it after the Apple processor transition is over. It is also not eligible for tech support from Genius Bars at Apple retail stores as developers should contact Apple support directly for replacements.Universal App Quick Start Program, Apple Inc. Accessed 2020-06-23.PSA for Developers: Mac Mini With A12Z Chip Cannot Be Repaired at Genius Bar or Service Provider by Joe Rossignol, MacRumors. 2020-06-24.
*Apple A12Z processor
*16GB memory, 512GB SSD
*2 USB-C ports (up to 10 Gbps)
*2 USB 3.0 ports (up to 5 Gbps)
*HDMI 2.0 port
*802.11ac Wi-Fi
*Bluetooth 5.0
*Gigabit Ethernet
*macOS Big Sur developer beta
*Xcode 12 with support for Universal 2
==Gallery==
Steve Jobs talks Developer Transition Kit specs at WWDC 2005.jpg|Steve Jobs talks about the Intel transition at the 2005 Worldwide Developers Conference.|link=
Apple Developer Transition Kit opened.jpg|An opened 2005 Developer Transition Kit, housed inside a Power Mac G5 case.|link=
MacOS Big Sur Apple Development Platform 2020.jpg|The 2020 DTK identifies itself as an "Apple Development Platform" in macOS Big Sur.|link=
==References==
==See also==
*Alpha Xenon Development Kit, a G5-based development system used by Microsoft
==External links==
*Apple Development Transition Kit by Pierre Dandumont at MacRumors (2015-04-28)
*Inside Apple's Intel-based Dev Transition Kit by Katie Marsal at AppleInsider (2005-06-23)
Category:Apple Developer
Category:Apple hardware