Windows 15 and 15.1

Overview
Windows 15 is a very software-compatible version of Windows and the successor to Windows 14 released in 2036. Windows 15's features include a new sleek Edge design, built-in third party theme support, Office 745 and Microsoft Visual Studio 2030 built in, and Windows 95 - Windows 14 app support. The OS is very developer friendly.

Builds
Windows 15 had a majority of builds, ranging across it's development and it's lifespan. There were many builds for Windows 15.

Build 1378 (2029)
- Edge updated

- Improved Control Panel

- Added Visual Studio 2030

Build 1384 (2029)
- Third party theme support

- Improved Microsoft Edge

Build 2149 (2029)
- New logo (Multicolored current logo)

- Redisigned Start Menu

- Bug Fixes

Build 2156 (2029)
- New logo (Multicolored current logo)

- Redisigned Start Menu

- Bug Fixes

Build 2381 (2030)
- New Cortana features

- Bug Fixes

Build 2394 (2030
- More Cortana features

- Bug Fixes

Build 2412 (2030)
- Automatic Browser Flash support removed due to Flash being deprecated because of HTML7

Build 2468 (2031)
- Bug Fixes

(nothing intresting, just bug fixes.)

Build 3124 (2034)
- Windows 14, 13, 12, 11, 10-10.1, 8-8.1, and 7 app support

- Bug Fixes

Build 3124 (2034)
- Windows Classic theme restored (Enterprise Only)

- Windows 14, 13, 12, 11, 10-10.1, 8-8.1, and 7 app support

- Bug Fixes

Build 3846 (2035)
- Live Tiles 2.0 Indev added to Start

- Windows Vista Service Pack 2 and XP Service Pack 3 app support

- Bug Fixes

- New, and cleaner, Windows Media Center returns!

Build 9816 (Insider Preview Build) (2035)
- New logo

- Live Tiles 2.0 complete

- Bug Fixes

- New Settings menu

- New Start menu

- Windows XP and Vista app support extended to 2000 and ME support

- Renamed from Jupiter to Windows 15

- Final build

Version 15.0 (Final Product)
- Bug Fixes

Service Pack 1 (2038)
- Bug Fixes

- Minor improvements

Service Pack 2 (2039)
- Bug Fixes

- Minor improvements

- New Full Screen Start menu for Windows 8 lovers

- New pre-installed themes, like Luna, Aero Glass, Metro, and Windows Classic. There is also a Sleek theme. (SLEEK THEME IS PRO ONLY)

Version 15.1 (2042)
- Bug Fixes

- Major improvements

- Custom theme creator

- Improved apps, like Photos, Media Player, Paint 3D, Windows Store improvements, ect

Version 15.0 End of Support (2042)
- Windows Media Player 15.0 discontinued

- Paint 3D 3D printing service shut down

- Windows Store shut down

- Windows 15.1 free upgrade released for a week to get users to move over

Service Pack 3 (2043)
- All apps updated to 16.0 (except Photos, and Media Player, and Theme Creator)

- Bug Fixes

- MS Paint completely discontinued

- Windows 15.1 app support

- Last Service Pack for Windows 15.0

All Service Packs End of Support (2046)
- Same as 15.0 End of Support

Version 15.1 End Of Support (2046)
- Same as 15.0 End of Support

- Free Windows 16.0 Upgrade for a week