Windows 7 worked on Windows 7. These were broadly divided into "core operating system" and "Windows client experience", in turn organized into 25 teams of around 40 developers on average. In October 2008, it was announced that Windows 7 would also be the official name of the operating system. There has been some confusion over naming the product Windows 7, while versioning it as 6.1 to indicate its similar build to Vista and increase compatibility with applications that only check major version numbers, similar to Windows 2000 and Windows XP both having 5.x version numbers. The first external release to select Microsoft
Development of Windows Vista system builders and OEMs to remove any user-visible aspects of the document format from the operating system. A few days later, it was announced that PC-to-PC Sync would not ship with Windows Vista. On June 14, 2006, Windows developer Philip Su posted a blog entry which decried the development process of Windows Vista, stating that "the code is way too complicated, and that the pace of coding has been tremendously slowed down by overbearing process. " The same post also described Windows Vista as having approximately 50 million lines of code, with about 2,000 developers working on the product. Build