Windows 1.11

Windows 11 (Codename Fusion) would be the successor to Windows 10. It would be released on June 5, 2021.

Build 19821
First build ever. Released on September 27, 2020.

Build 19842 - October Technical Preview
Released on October 12, 2020.
 * Redesigned WordPad.
 * Redesigned OOBE

Build 19861
Released on October 19, 2020.

Build 19877 - November Technical Preview
Released on November 4, 2020.

Build 19879
Released on November 8, 2020. With changes:
 * A message box that says Windows Media Player will be removed soon appears when you launch Windows Media Player

Build 19888 - December Technical Preview
Released on December 11, 2020. With changes:
 * Users can swipe down to close UWP app in tablet mode like Windows 8/8.1
 * UWP apps can be shown in full screen like early Windows 10 builds (but pressing ALT+TAB won't turn app into windowed like early Windows 10 builds)

Build 19901
Released on December 25, 2020.
 * Ribbon UI edesigned
 * Issues with the taskbar in tablet mode fixed

Build 19918 - January Technical Preview
Released on January 3, 2021. This build has some changes:
 * Redesigned Notepad, Remote Desktop Connection and Device Manager
 * Introduces some new apps, such as Solitaire Anniversary Edition
 * New theme and set of wallpapers.
 * New classic theme based on Windows 8.1
 * The Start menu has been redesigned
 * Windows Media Player removed.

Build 19921
Shown during PDC 2021.

Build 19925
Released on January 16, 2021.
 * Fixed scaling issue on the Start menu
 * Includes a hidden new logon screen that can be activated via the registry
 * Fluent Design WordPad, Sticky Notes and Notepad
 * Control panel completely removed

Build 19941
Released on January 24, 2021.
 * Redesigned Private Character Editor

Build 19958 - February Technical Preview
Released on February 4, 2021.
 * New icons for some Administrative Tools (Computer Management, Component Services, Event Viewer)
 * Redesigned Resource Monitor

Build 19991 - February Technical Preview Update 1
Released on February 23, 2021.
 * Windows Mobility Center completely removed (in Windows 10, it's hidden by default)

Build 20000 - March Technical Preview
Released on March 11, 2021.
 * Users can now use Google Account or Apple ID to Log on
 * Ribbon interface in explorer can be disabled
 * Battery life improved on Windows 8.1 era laptops
 * Fluent Design File Explorer, Magnifier, Task Manager and Remote Desktop Connection.
 * Groove Music rebranded to Microsoft Music
 * Groove Music rebranded to Microsoft Music

Build 20022 - March Technical Preview Update 1
Released on March 17, 2021.
 * Windows Speech Recoginition removed
 * New Device Manager icons
 * Redesigned Device Manager, Computer Management and Event Viewer
 * Classic Phone Dialer removed

Build 20028
Released on March 24, 2021.
 * New Volume control UI
 * New logon screen (which is hidden in build 19925-20051)
 * Internet Explorer removed
 * Internet Explorer removed

Build 20051
Released on March 31, 2021.
 * Boot Screen redesigned
 * New sounds

Build 20088 - April Insider Preview
Released on April 8, 2021.
 * System Restore redesigned

Build 20091 - April Insider Preview Update 1
Released on April 18, 2021.
 * Cortana can now be disabled like on Early versions of Windows 10
 * Microsoft Minesweeper now shipped with Windows
 * Improvements to Microsoft Edge
 * Live tiles can be completly disabled
 * Start menu tiles can be fixed freely on the desktop just like gadgets on Windows Vista and 7
 * Show Quick Launch insted of taskbar icons option available in the Settings app

Build 20102
Released on April 24, 2021.

Build 20125
Leaked on April 30, 2021.

Build 20127 - May Insider Preview
Released on May 9, 2021.
 * Final sets of wallpapers
 * Added Support for third-party themes
 * Live tiles can be completly disabled
 * Minor UI tweaks

Build 20135
Released on May 17, 2021. Pre-RTM build.
 * Minor bug fixes

Build 20158 - RTM

 * Desktop watermark removed.

Editions

 * Pro
 * Home
 * Education
 * Enterprise
 * Enterprise LTSC 2021
 * IoT Core/Enterprise
 * ARM

Feature updates

 * November Update: Release on November 2021
 * Anniversary Update: Release on June 2022

Trivia

 * Windows 8.1, 10 and 10.1 users can upgrade to Windows 11
 * System requirements are same as Windows 8/8.1 and Windows 10. But Windows 11 is not designed for old computers. However some old computers can run Windows 11 pretty well.
 * Windows 11 Pro and Windows 11 Pro for Workstations have updated default apps but you can still find their original Windows 10 Pro version of these applications in other versions of Windows 11:
 * Active Directory 2.0 (more options and better design)
 * Remote Desktop 2.0 (more options, better design and even faster user change)
 * BitLocker 2.0 (there are 8-bit, 16-bit, 32-bit, 64-bit, 128-bit or 256-bit options for encryption. Microsoft might be able to develop 512-bit encryption if the technology is enough at that time. Better design.)
 * Hyper-V 2.0 (virtual machine bugs fixed and better virtual environment)