Windows codenames: Difference between revisions

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Latest revision as of 04:05, 7 November 2020

Windows 3.1x/9x[edit | edit source]

Codename Preliminary name Final name Notes
Kato (Winball), Sparta (Jastro) Windows for Workgroups 3.1
Snowball (LB) Windows for Workgroups 3.11
Chicago Windows 95
O'Hare Internet Explorer, first shipped in Microsoft Plus! for Windows 95 O'Hare is the main airport for the city of Chicago.
Frosting Microsoft Plus! for Windows 95
Detroit Windows 95 OEM Service Release 2
Nashville Internet Explorer 4 Cancelled Windows version
Memphis Windows 98 The codename was the key to activating an easter egg in Windows 98:
  • open the "Date and Time" control panel;
  • go to the "Timezone" page;
  • hold the Control key and drag a line with the mouse cursor from Memphis, Egypt (or maybe Cairo - the map is too small to tell) to Memphis, Tennessee. Still holding the Control key, drag another line from Memphis to Redmond, Washington;
  • a window opens with the credits for Windows 98.
Millennium Windows Me Me stands for Millennium Edition

Windows NT family[edit | edit source]

Codename Preliminary name Final name Notes
NT OS/2, OS/2 3.0, Portable OS/2, NTOS, Razzle Windows NT 3.1
Daytona Windows NT 3.5
Cairo N/A Never released.
SUR (Shell Update Release) Windows NT 4.0 Microsoft originally planned for NT 4.0 to be just a simple "Shell Update Release" to integrate the Windows 95 GUI with Windows 3.51's kernel.
Wolfpack Microsoft Cluster Server
Hydra Terminal Services, Terminal Server Windows NT 4.0 Terminal Server Terminal Server adds "multithreading" support to Windows (the ability to run multiple instances of the graphics subsystem), and the Lernaean Hydra is a mythological monster with multiple heads.
Impala Windows NT 4.0 Embedded
Memphis NT Windows NT 5.0 Windows 2000
Asteroid Windows 2000 Service Pack 1
Janus N/A Planned 64-bit variant of Windows 2000.
Neptune N/A Ideas project, merged to Whistler.
Whistler Windows XP Merge of Neptune and Odyssey. Named after Whistler, British Columbia, where design retreats were held.
Odyssey N/A Ideas project, merged to Whistler.
Anvil Windows XP Professional x64 Edition
Mira Windows XP Tablet PC Edition
Lonestar Windows XP Tablet PC Edition 2005
Triton N/A
Mantis Windows XP Embedded
Creekside Windows XP Starter
Trident Windows XP Media Center Edition
eHome Windows Media Center
Freestyle Windows XP Media Center Edition 2002 Name of a terrain rating system in the Whistler-Blackcomb resort.
Harmony Windows XP Media Center Edition 2004 Name of a ski lift and alpine bowl in Whistler, British Columbia.
Symphony Windows XP Media Center Edition 2005 Name of an alpine bowl in Whistler, British Columbia.
Emerald Windows XP Media Center Edition 2005 Update Rollup Name of a ski lift in Whistler, British Columbia.
Trainyard Windows XP Service Pack 1 Trainyard was an engineering package of driver updates to ship simultaneously with Windows XP Service Pack 1, the most major of which was support for USB 2.0 which was also ported backwards to Windows 2000.
Springboard Windows XP Service Pack 2 Name of a ski run on Blackcomb in Whistler, British Columbia.
Whistler Server, Windows 2002 Server, Windows .NET Server, Windows .NET Server 2003 Windows Server 2003
Bobcat Windows Small Business Server 2003 Bobcat is a ski-run on Whistler Mountain.
Eiger Windows Fundamentals for Legacy PCs A low-end version of Windows XP that is intended to be a thin-client that works with older hardware. Available through the Microsoft Software Assurance program. The Eiger is a mountain in the Bernese Oberland in Switzerland. The Eiger is part of a trio of mountains, The Eiger, The Mönch and The Jungfrau.
Crossbow Windows Mobile 6.0
Longhorn Windows Vista Named after the Longhorn Bar in the Whistler-Blackcomb resort; initially planned as an "interim release" between "Whistler" and "Blackcomb" (which is now "Vienna"). Reset in 2004 due to development issues.
Cougar Windows Small Business Server 2008 Cougar is a ski-run on Whistler Mountain.
Q, Quattro Windows Home Server Announced at CES 2007. Original project codename was "Quattro" because it was the leader of the project's 4th attempt at building a home server at Microsoft. Renamed to Q once the project moved out of incubation stage.
Windows 7 Windows 7 "Windows 7" was the original project codename. It was decided that this must be kept.
Windows Server 7 Windows Server 2008 R2 In development. Planned "mid-size" (25-500 PC) edition of Longhorn Server.[1].
Vail Windows Home Server 2011
Windows 8 Windows 8
Server 8 Windows Server 2012
Metro Windows 8 Style UI Renamed from Metro because of legal issues involving the German Metro company.
Jupiter Windows RT Windows 8 application framework.
Blue Windows 8.1
Server Blue Windows Server 2012 R2
Threshold Windows 10
Threshold 2 Windows 10 November Update
Threshold Server Windows Server 2016
Redstone Windows 10 Anniversary Update Redstone is a mineral and item in Minecraft, a game product by Mojang and Microsoft bought it in 2015
Redstone 2 Windows 10 Creators Update
Redstone 3 Windows 10 Fall Creators Update
Redstone 3 Server Windows Server version 1709
Redstone 4 Windows 10 Spring Creators Update Windows 10 April 2018 Update
Redstone 4 Server Windows Server version 1803
Redstone 5 Windows 10 October 2018 Update
Redstone 5 Server Windows Server 2019, Windows Server version 1809
19H1 Windows 10 19H1 Windows 10 May 2019 Update
Server 19H1 Windows Server version 1903
19H2, Vanadium Windows 10 19H2 Windows 10 version 1909
Server 19H2, Server Vanadium Windows Server 19H2 Windows Server version 1909
20H1, Vibranium Windows 10 20H1 Windows 10 version 2004
Server 20H1, Server Vibranium Windows Server 20H1 Windows Server version 2004
20H2, Magnanese (insider preview only) Windows 10 20H2
Server 20H2 (insider preview only) Windows Server 20H2
Iron Windows 10 Iron
Server Iron Windows Server Iron