The original version of Windows 10 (also retroactively named version 1507 and codenamed "Threshold 1") was released in July 2015. It carries the build number 10.0.10240; while Microsoft has stated that there was no designated

release to manufacturing The software release life cycle is the process of developing, testing, and distributing a software product (e.g., an operating system). It typically consists of several stages, such as pre-alpha, alpha, beta, and release candidate, before the fi ...

(RTM) build of

Windows 10 Windows 10 is a major release of Microsoft's Windows NT operating system. The successor to Windows 8.1, it was Software release cycle#Release to manufacturing (RTM), released to manufacturing on July 15, 2015, and later to retail on July 2 ...

, build 10240 was described as an RTM build by various media outlets. It was retroactively named "version 1507" by Microsoft per its naming conventions that have the last 2 digits of the year and the month number for future stable releases of the operating system.

Version history

Notable changes in this version include: *An updated start menu *The introduction of Cortana, a virtual assistant, to the desktop version of Windows *A "Continuum" mode that allows users to switch between desktop mode and tablet mode *"Action Center", which includes notifications and quick access to settings *A new web browser,

Microsoft Edge Legacy Microsoft Edge Legacy (often shortened to Edge Legacy), originally released as simply Microsoft Edge or Edge is a discontinued Proprietary Software, proprietary cross-platform software, cross-platform web browser created by Microsoft. Released ...

, that replaces

Internet Explorer Internet Explorer (formerly Microsoft Internet Explorer and Windows Internet Explorer, commonly abbreviated as IE or MSIE) is a deprecation, retired series of graphical user interface, graphical web browsers developed by Microsoft that were u ...

as the default browser in Windows *Improved multitasking, including virtual desktops *Many updated built-in apps The final release was made available to Windows Insiders on July 15, 2015, followed by a public release on July 29, 2015. The update has reached end of service on May 9, 2017 in the Current Branch and Current Branch for Business. The Enterprise LTSB edition will reach end of service on October 14, 2025.

References

{{Windows 10 version history Windows 10 History of Microsoft Software version histories

Version history

See also

References