Windows 12

Windows 12 is a Windows version created for anonymus FANDOM user. Is was released in December 12, 2017, after three years of developing.

Codename "New York" builds
The Milestone 0 had the codename "New York" and has three builds:

Builds 10600, 10650 & 10700
Several changes from Windows 10. These builds were descrived as a "very big mess" and the developement was resetted.

Codename "Longhorn 2"
The Milestones 1-5 had the codename "Longhorn 2"

Build 10750
Windows 10 with Plex and Aero visual styles and updates of Cortana.

Build 10800
Some UI updates, new Logon Screen.

Build 11000
Several improvements, reduced installation times, old versions' themes added. Leaked in November 11, 2016

Build 11250
Testing XT Technology, destinated to replaced NT.

Build 11500
Added XTUI.

Build 11750
Pre RC1. Leaked in October 25, 2017

Build 12000
RC1 (12000), RC2 (12000.1) & RTM (12000.2). Final UI, with several Cortana and Edge updates. The final Windows 12.

Build 12012
Some improvements, another Cortana update. Known as Windows 12.12. Leaked in December 16, 2017.

Build 12112
Default Aero theme. Known as Windows 12.12 Christmas Update or Windows 12.12.12. Leaked in December 24, 2017.

Build 12212
Some improvements and processors security bug totally fixed with new Windows Security Center. Leaked in January 5, 2018.