When Windows 7 and Windows Server 2008 R2 to SP1 will be released is a topic of concern for those who plan to upgrade their windows. Microsoft released a public beta of SP1 last week, which using the internal test mode. Although Microsoft has said repeatedly that users can deploy the new system no need to wait for SP1. Microsoft published a FAQ at TechNet, made it clear that SP1 will be released in 1H 2011.
Microsoft has said many times, Windows 7 SP1 does not add new features, and Windows Server 2008 R2 SP1 only adds two virtual functions. In fact, Windows 7 SP1 includes a number of Microsoft Windows updates and new functions that security patches didn't provide. But Microsoft called the function "improvements" rather than new features. These features "improvements" includes more third-party services to support and enhance the HDMI audio device support, and XPS printing support.